CN110556805A - Ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device - Google Patents
Ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device Download PDFInfo
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- CN110556805A CN110556805A CN201910918009.3A CN201910918009A CN110556805A CN 110556805 A CN110556805 A CN 110556805A CN 201910918009 A CN201910918009 A CN 201910918009A CN 110556805 A CN110556805 A CN 110556805A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 72
- 230000001939 inductive effect Effects 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims description 52
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 230000001629 suppression Effects 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 description 16
- 230000001012 protector Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/006—Casings specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0066—Constructional details of transient suppressor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
the invention relates to an ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and a device, wherein the method comprises the following steps: providing an integrated metal body: the integrated metal body is internally provided with various precise mechanical structural parts to form series-parallel stub lines, and the series-parallel stub lines are matched with the integrated metal body to form an LC high-pass filter and a distributed parameter resonance circuit to form an ultra-wideband radio frequency signal frequency selection network and an ultra-wideband impedance matching network. The short stub of the inductive mechanical structural part is connected with the metal cavity to form a short circuit structure, so that a thunder electromagnetic pulse absorption and discharge path is formed, and the inductive mechanical structural part has a remarkable thunder electromagnetic pulse absorption and suppression circuit function.
Description
Technical Field
The invention relates to the field of electromagnetic pulse protection, in particular to an ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device.
Background
With the arrival of the mobile 5G communication technology and the millimeter wave terahertz technology, various intelligent and intelligentized devices are widely put into the engineering application fields of industrial production activities and the improvement and improvement of the daily life quality of people, the human society is in the process of high informatization and intelligentization, various large-capacity data information is rapidly exchanged and processed through the ultra-wideband wireless technology, and therefore the ultra-wideband wireless device is one of the solid foundations for realizing the changes.
However, ultra-wideband wireless devices, especially large wireless transmission infrastructure devices, are subject to the intrusion and destruction of strong lightning electromagnetic pulses from nature; at present, the upper limit of the highest working frequency of a commercial radio frequency coaxial lightning electromagnetic pulse surge protector at home and abroad is 6GHz, and the working bandwidth of the commercial radio frequency coaxial lightning electromagnetic pulse surge protector cannot meet the ultra-wideband requirement that the working frequency is more than 6GHz and the highest working frequency exceeds 6 GHz.
Disclosure of Invention
The invention aims to provide an ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device, which can meet the requirement that ultra-wideband radio equipment and facilities can continuously work in extreme climates such as severe thunderstorm environments.
The technical purpose of the invention is realized by the following technical scheme:
An ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method provides an integrated metal body: the integrated metal body is internally provided with various precise mechanical structural parts to form series-parallel stub lines, and the series-parallel stub lines are matched with the integrated metal body to form an LC high-pass filter and a distributed parameter resonance circuit to form an ultra-wideband radio frequency signal frequency selection network and an ultra-wideband impedance matching network.
By adopting the technical scheme, the integrated protection device works in an ultra-wide band, various performance indexes meet relevant standards and technical requirements, and the integrated protection requirement of the multi-band comprehensive radio frequency front-end ultra-wide band lightning electromagnetic pulse can be met.
The invention is further configured to: the various precision mechanical structural parts comprise inductive mechanical structural parts and capacitive mechanical structural parts, the integrated metal body is connected with the radio frequency coaxial transmission line through the inductive mechanical structural parts and the capacitive mechanical structural parts, and the integrated metal body, the inductive mechanical structural parts, the capacitive mechanical structural parts and the radio frequency coaxial transmission line are coaxially and concentrically assembled.
By adopting the technical scheme, the short stub of the inductive mechanical structural part is connected with the inner cavity of the integrated metal body to form a short-circuit structure, so that a thunder electromagnetic pulse absorption and discharge path is formed, and the lightning electromagnetic pulse absorption and discharge circuit has a remarkable thunder electromagnetic pulse absorption and suppression circuit function; a DC blocking capacitor is formed between the two capacitive mechanical structural components, and an inductance is formed by the inductive mechanical structural components to form an equivalent LC high-pass filter.
The second technical purpose of the invention is realized by the following technical scheme:
The utility model provides a coaxial thunder and lightning electromagnetic pulse protector of ultra wide band radio frequency, includes integrated metal body: the integrated metal body is characterized in that a first capacitive mechanical structural part and a second capacitive mechanical structural part which are in direct contact are arranged in the middle of the cavity of the integrated metal body, a first inductive mechanical structural part is arranged on the left side of the first capacitive mechanical structural part, the left side of the first inductive mechanical structural part is directly connected with a first radio frequency coaxial transmission line, and the right side of the second capacitive mechanical structural part is directly connected with a second radio frequency coaxial transmission line.
by adopting the technical scheme, the short stub of the inductive mechanical structural part is connected with the metal cavity to form a short-circuit structure, so that a thunder electromagnetic pulse absorption and discharge path is formed, and the lightning electromagnetic pulse absorption and discharge circuit has a remarkable thunder electromagnetic pulse absorption and suppression circuit function; a DC blocking capacitor is formed between the two capacitive mechanical structural components, and an inductance is formed by the inductive mechanical structural components to form an equivalent LC high-pass filter.
The invention is further configured to: the second inductive mechanical structure is arranged between the second capacitive mechanical structure and the second radio frequency coaxial transmission line.
by adopting the technical scheme, the bidirectional reciprocal protection structure is formed by adding the second inductive mechanical structural part.
the invention is further configured to: the integrated metal body has a frequency resonance characteristic of 2-18 GHz.
By adopting the technical scheme, the integrated metal body has the frequency resonance characteristic of 2-18GHz, and distributed capacitance can be formed between the integrated metal body and the inductive mechanical structural part and between the integrated metal body and the capacitive mechanical structural part.
The invention is further configured to: the integrated metal body is characterized by further comprising a first radio frequency coaxial connection conversion port and a second radio frequency coaxial connection conversion port which are respectively arranged at two ends of the integrated metal body and used for fastening the first radio frequency coaxial transmission line and the second radio frequency coaxial transmission line.
By adopting the technical scheme, the radio frequency coaxial connection conversion port is used for fixing the radio frequency coaxial transmission line in the integrated metal body.
The invention is further configured to: the characteristic impedance of the first radio frequency coaxial connection conversion port and the second radio frequency coaxial connection conversion port is 50 ohms.
By adopting the technical scheme, the characteristic impedance of the radio frequency coaxial connection conversion port is 50 ohms.
The invention is further configured to: the first radio frequency coaxial connection conversion port and the second radio frequency coaxial connection conversion port are fixed by a flange plate, are pressed and tightly matched in a pressing mode through extrusion or are matched in a thread mode.
By adopting the technical scheme, the radio frequency coaxial connection conversion port adopts the processes of flange plate fixing, extrusion close-fitting crimping or thread matching, and is favorable for fastening connection.
The invention is further configured to: o-shaped waterproof conductive rubber rings are arranged between the first radio frequency coaxial connection conversion port and the integrated metal body and between the second radio frequency coaxial connection conversion port and the integrated metal body.
By adopting the technical scheme, the O-shaped waterproof conductive rubber ring is arranged between the radio frequency coaxial connection conversion port and the integrated metal body, so that the working environment in the integrated metal body is favorably kept, and the influence on precision mechanical structural parts such as inductive mechanical structural parts, capacitive mechanical structural parts and the like is avoided.
The invention is further configured to: the integrated metal body, the first radio frequency coaxial transmission line, the first inductive mechanical structural part, the first capacitive mechanical structural part, the second capacitive mechanical structural part and the second radio frequency coaxial transmission line are coaxially and concentrically assembled.
By adopting the technical scheme, the coaxial and concentric assembly is adopted, so that the reliability of the device is improved, and higher performance is obtained.
In conclusion, the invention has the following beneficial effects:
1. The short stub of the inductive mechanical structural part (the thunder electromagnetic pulse absorption and suppression component) is connected with the metal integrated metal body to form a short-circuit structure, so that a thunder electromagnetic pulse absorption and discharge path is formed, and the thunder electromagnetic pulse absorption and suppression circuit has a remarkable thunder electromagnetic pulse absorption and suppression circuit function;
2. The inductor and the capacitor with any specific lumped parameter characteristic are not used, and any surge current absorbing device such as a gas discharge tube or a piezoresistor is not used;
3. The shape is the cylindricality, and the mechanism is exquisite, uses with the coaxial connection conversion port cooperation of radio frequency, makes things convenient for this protector to install in all kinds of ultra wide band radio frequency links, plays the effect of thunder and lightning electromagnetic pulse protection to sensitive radio frequency coaxial device.
Drawings
FIG. 1 is a schematic view of the structure of a guard device according to embodiment 2;
FIG. 2 is a schematic view of the structure of the guard of embodiment 3;
FIG. 3 is a schematic view of an equivalent circuit of the protection device of embodiment 3;
Fig. 4 is a schematic structural view of the guard device of embodiment 4.
In the figure, 10, an integral metal body; 111. a first radio frequency coaxial connection conversion port; 112. the second radio frequency coaxial connection conversion port; 121. a first radio frequency coaxial transmission line; 122. a second radio frequency coaxial transmission line; 131. a first inductive mechanical structure; 132. a second inductive mechanical structure; 141. a first capacitive mechanical structure; 142. a second capacitive mechanical structure; 15. an equivalent capacitance; 161. a first equivalent inductance; 162. a second equivalent inductor; 171. a first distributed capacitance; 172. a second distributed capacitance; 173. a third distributed capacitance; 174. and a fourth distributed capacitor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: the embodiment provides an ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method, which provides an integrated metal body (with a frequency resonance characteristic of 2-18 GHz): the integrated metal body is internally provided with various precise mechanical structural parts to form series-parallel stub lines, and the series-parallel stub lines are matched with the integrated metal body to form an LC high-pass filter and a distributed parameter resonance circuit to form an ultra-wideband radio frequency signal frequency selection network and an ultra-wideband impedance matching network.
Preferably, the various precision mechanical structural members include an inductive mechanical structural member and a capacitive mechanical structural member, the integrated metal body is connected with the radio frequency coaxial transmission line through the inductive mechanical structural member and the capacitive mechanical structural member, and the integrated metal body, the inductive mechanical structural member, the capacitive mechanical structural member and the radio frequency coaxial transmission line are coaxially and concentrically assembled.
Example 2: an ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device, as shown in fig. 1, comprises an integrated metal body 10 (preferably, the integrated metal body 10 has a frequency resonance characteristic of 2-18 GHz): a first capacitive mechanical structure member 141 and a second capacitive mechanical structure member 142 which are in direct contact are arranged in the middle of the cavity of the integrated metal body 10, the first capacitive mechanical structure member 141 is located on the left side of the second capacitive mechanical structure member 142, a first inductive mechanical structure member 131 is arranged on the left side of the first capacitive mechanical structure member 141, the left side of the first inductive mechanical structure member 131 is directly connected with the first radio frequency coaxial transmission line 121, and the right side of the second capacitive mechanical structure member 142 is directly connected with the second radio frequency coaxial transmission line 122.
Preferably, the integrated metal body 10, the first rf coaxial transmission line 121, the first inductive mechanical structure 131, the first capacitive mechanical structure 141, the second capacitive mechanical structure 142 and the second rf coaxial transmission line 122 are coaxially and concentrically assembled. The protective device is in a cylinder shape with the optimal appearance, is exquisite, compact, simple and convenient to construct, is matched with a radio frequency coaxial connection conversion port for use, is convenient to install in various ultra wide band radio frequency links, can effectively inhibit the damage of lightning electromagnetic pulses only by being installed at the connection part of a feed cable and equipment of wireless equipment, ensures the all-weather work of the wireless equipment, and plays a role in lightning electromagnetic pulse protection on a sensitive radio frequency coaxial device. The shape of the integrated metal body 10 can be round or square, the appearance is determined by the installation and use occasions, and the integrated metal body can be in the form of a flange plate or a wall penetrating structure and the like.
The first inductive mechanical structure 131 directly connects the first rf coaxial transmission line 121 with the integrated metal body 10 to form a direct current short circuit and equipotential lightning electromagnetic pulse suppressing and absorbing structure (short circuit protection structure for short), and the short circuit protection structure is assembled on the rf coaxial transmission line (the first rf coaxial transmission line 121 or the second rf coaxial transmission line 122) at any end of the integrated metal body 10 to form a one-way protection structure.
When a lightning electromagnetic pulse occurs on the radio frequency coaxial transmission line (the first radio frequency coaxial transmission line 121 or the second radio frequency coaxial transmission line 122), because the short circuit protection structure directly short-circuits the radio frequency transmission line and the integrated metal body 10 into a whole and forms an equipotential structure, the strong lightning electromagnetic pulse is transmitted to the integrated metal body 10, so that the transient surge voltage induced by the lightning electromagnetic pulse between the radio frequency coaxial transmission line and the integrated metal body 10 is effectively limited within a certain range (such as lower than 10 VDC); thereby effectively protecting the back-end facilities from the peak impact of strong lightning magnetic pulses.
example 3: as shown in fig. 2, the difference from the embodiment 2 is that a second inductive mechanical structure 132 is further included, and is disposed between the second capacitive mechanical structure 142 and the second rf coaxial transmission line 122.
Preferably, the integrated metal body 10, the first rf coaxial transmission line 121, the first inductive mechanical structure 131, the first capacitive mechanical structure 141, the second capacitive mechanical structure 142, the second inductive mechanical structure 132 and the second rf coaxial transmission line 122 are coaxially and concentrically assembled.
The first inductive mechanical structure 131 directly connects the first rf coaxial transmission line 121 with the integrated metal body 10 to form a dc short and equipotential lightning electromagnetic pulse suppressing and absorbing structure (short-circuit protection structure for short), and correspondingly, the second inductive mechanical structure 132 directly connects the second rf coaxial transmission line 122 with the integrated metal body 10 to form a short-circuit protection structure, which is assembled on the rf coaxial transmission lines (the first rf coaxial transmission line 121 and the second rf coaxial transmission line 122) at two ends of the integrated metal body 10 to form a bidirectional reciprocal protection structure.
When a lightning electromagnetic pulse occurs on the radio frequency coaxial transmission line (the first radio frequency coaxial transmission line 121 or the second radio frequency coaxial transmission line 122), because the short circuit protection structure directly short-circuits the radio frequency transmission line and the integrated metal body 10 into a whole and forms an equipotential structure, the strong lightning electromagnetic pulse is transmitted to the integrated metal body 10, so that the transient surge voltage induced by the lightning electromagnetic pulse between the radio frequency coaxial transmission line and the integrated metal body 10 is effectively limited within a certain range (such as lower than 10 VDC); thereby effectively protecting the back-end facilities from the peak impact of strong lightning magnetic pulses.
In the protection device of the present invention, the internal precise mechanical structural components may be implemented by symmetrical or asymmetrical structural components, the first inductive mechanical structural component 131 and the second inductive mechanical structural component 132 may be implemented by planar, circumferentially symmetrical or asymmetrical curves and stubs, and the first capacitive mechanical structural component 141 and the second capacitive mechanical structural component 142 may be implemented by cylindrical or disk-shaped components with appropriate area, cylindrical hollow pipe sleeves, and the like, and the respective end surfaces are attached with dielectrics.
As shown in fig. 3, an equivalent capacitor (blocking capacitor) 15 is formed between the first capacitive mechanical structure 141 and the second capacitive mechanical structure 142, the first inductive mechanical structure 131 is equivalent to a first equivalent inductor 161, a first distributed capacitor 171 is formed between the first inductive mechanical structure 131 and the integrated metal body 10, the second inductive mechanical structure 132 is equivalent to a second equivalent inductor 162, a second distributed capacitor 172 is formed between the second inductive mechanical structure 132 and the integrated metal body 10, a third distributed capacitor 173 is formed between the first capacitive mechanical structure 141 and the integrated metal body 10, and a fourth distributed capacitor 174 is formed between the second capacitive mechanical structure 142 and the integrated metal body 10; the equivalent capacitor 15, the first equivalent inductor 161, the second equivalent inductor 162, the first distributed capacitor 171, the second distributed capacitor 172, the third distributed capacitor 173 and the fourth distributed capacitor 174 together form an LC high-pass filter, a radio frequency ultra-wideband frequency selection network and an equivalent resonance frequency selection circuit, have the structural characteristics of a typical pi-pi circuit, are bidirectional and reciprocal, ensure that the effective ultra-wideband working bandwidth is within the range of 2-18GHz, and simultaneously, radio frequency signals (2-18 GHz) are transmitted with small loss and are matched in impedance.
Example 4: as shown in fig. 4, the difference from embodiment 2 is that a first rf coaxial connection converting port 111 and a second rf coaxial connection converting port 112 are further included, respectively disposed at two ends of the integrated metal body 10, for fastening the first rf coaxial transmission line 121 and the second rf coaxial transmission line 122.
Preferably, the characteristic impedance of the first rf coaxial connection converting port 111 and the second rf coaxial connection converting port 112 is 50 ohms; the first radio frequency coaxial connection conversion port 111 and the second radio frequency coaxial connection conversion port 112 adopt flange plate fixing, extrusion tight-fitting compression joint or thread matching process and other modes. In order to better protect the electrical characteristics in the integrated cavity and achieve a waterproof effect, O-shaped waterproof conductive rubber rings are arranged between the first radio frequency coaxial connection conversion port 111 and the integrated metal body 10 and between the second radio frequency coaxial connection conversion port 112 and the integrated metal body 10.
Common inductive elements are inductors and capacitive elements are capacitors. The inductive mechanical structural part realizes the function of an inductive device by using a precise mechanical structure, and the capacitive mechanical structural part realizes the function of a capacitive device by using the precise mechanical structure.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
Claims (10)
1. An ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method is characterized by providing an integrated metal body: the integrated metal body is internally provided with various precise mechanical structural parts to form series-parallel stub lines, and the series-parallel stub lines are matched with the integrated metal body to form an LC high-pass filter and a distributed parameter resonance circuit to form an ultra-wideband radio frequency signal frequency selection network and an ultra-wideband impedance matching network.
2. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method according to claim 1, characterized by: the various precision mechanical structural parts comprise inductive mechanical structural parts and capacitive mechanical structural parts, the integrated metal body is connected with the radio frequency coaxial transmission line through the inductive mechanical structural parts and the capacitive mechanical structural parts, and the integrated metal body, the inductive mechanical structural parts, the capacitive mechanical structural parts and the radio frequency coaxial transmission line are coaxially and concentrically assembled.
3. the ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device is characterized by comprising an integrated metal body (10): the integrated metal body (10) is characterized in that a first capacitive mechanical structural part (141) and a second capacitive mechanical structural part (142) which are in direct contact with each other are arranged in the middle of a cavity of the integrated metal body (10), a first inductive mechanical structural part (131) is arranged on the left side of the first capacitive mechanical structural part (141), the left side of the first inductive mechanical structural part (131) is directly connected with a first radio frequency coaxial transmission line (121), and the right side of the second capacitive mechanical structural part (142) is directly connected with a second radio frequency coaxial transmission line (122).
4. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 3, characterized by: the antenna further comprises a second inductive mechanical structure (132) arranged between the second capacitive mechanical structure (142) and the second radio frequency coaxial transmission line (122).
5. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 3, characterized by: the integrated metal body (10) has a frequency resonance characteristic of 2-18 GHz.
6. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 3, characterized by: the integrated metal body is characterized by further comprising a first radio frequency coaxial connection conversion port (111) and a second radio frequency coaxial connection conversion port (112) which are respectively arranged at two ends of the integrated metal body (10) and used for fastening the first radio frequency coaxial transmission line (121) and the second radio frequency coaxial transmission line (122).
7. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 6, characterized by: the characteristic impedance of the first radio frequency coaxial connection conversion port (111) and the second radio frequency coaxial connection conversion port (112) is 50 ohms.
8. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 6, characterized by: the first radio frequency coaxial connection conversion port (111) and the second radio frequency coaxial connection conversion port (112) are fixed by a flange plate, pressed and tightly matched in compression joint or matched in threads.
9. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 6, characterized by: o-shaped waterproof conductive rubber rings are arranged between the first radio frequency coaxial connection conversion port (111) and the second radio frequency coaxial connection conversion port (112) and the integrated metal body (10).
10. The ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection device of claim 3, characterized by: the integrated metal body (10), the first radio frequency coaxial transmission line (121), the first inductive mechanical structural part (131), the first capacitive mechanical structural part (141), the second capacitive mechanical structural part (142) and the second radio frequency coaxial transmission line (122) are coaxially and concentrically assembled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910918009.3A CN110556805A (en) | 2019-09-26 | 2019-09-26 | Ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910918009.3A CN110556805A (en) | 2019-09-26 | 2019-09-26 | Ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device |
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| CN110556805A true CN110556805A (en) | 2019-12-10 |
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| CN201910918009.3A Pending CN110556805A (en) | 2019-09-26 | 2019-09-26 | Ultra-wideband radio frequency coaxial lightning electromagnetic pulse protection method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111601493A (en) * | 2020-06-28 | 2020-08-28 | 深圳市速联技术有限公司 | Method and device for protecting strong electromagnetic pulse of radio frequency link |
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| CN111601493A (en) * | 2020-06-28 | 2020-08-28 | 深圳市速联技术有限公司 | Method and device for protecting strong electromagnetic pulse of radio frequency link |
| CN111601493B (en) * | 2020-06-28 | 2021-02-23 | 深圳市速联技术有限公司 | Method and device for protecting strong electromagnetic pulse of radio frequency link |
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