CN108390135A - A kind of micro-strip duplexer - Google Patents
A kind of micro-strip duplexer Download PDFInfo
- Publication number
- CN108390135A CN108390135A CN201810364290.6A CN201810364290A CN108390135A CN 108390135 A CN108390135 A CN 108390135A CN 201810364290 A CN201810364290 A CN 201810364290A CN 108390135 A CN108390135 A CN 108390135A
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- Prior art keywords
- frequency
- filter
- strip
- signal
- feed line
- Prior art date
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- 230000008878 coupling Effects 0.000 claims abstract description 56
- 238000010168 coupling process Methods 0.000 claims abstract description 56
- 238000005859 coupling reaction Methods 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 230000008054 signal transmission Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transceivers (AREA)
Abstract
A kind of micro-strip duplexer, including medium substrate and metal ground plane, metal ground plane is covered in the side of medium substrate, the other side of medium substrate is attached with strip metal layer and constitutes signal transmission coupling channel, first frequency filter and second frequency filter are connected in strip metal, the side of strip metal layer is provided with third frequency coupling filter and the 4th frequency coupling filter, and first frequency, second frequency, third frequency and the 4th frequency are four different frequencies.First frequency filter is connected with second frequency filter for emitting signal, third frequency coupling filter and the 4th frequency coupling filter for receiving signal.When each filter signal frequency work, other filters, without response, then realize that each signal is mutual to be effectively isolated to the signal, can share common antenna, without being directed to the independent antenna of each set of frequency, reduce the volume, weight and cost of whole set equipment.
Description
Technical field
The present invention relates to communication, field of radar more particularly to harmonic radar field.
Background technology
The equipment such as traditional communication, radar, which are used, to be carried out signal transmitting with common antenna and receives, and needs to use duplexer.It is double
Work device in addition to can effectively transmitting and receive signal other than, prior effect is to be effectively isolated transceiver, to prevent
Only emitted energy is directly entered receiver and burns receiver.Its operation principle is as shown in Figure 1.When transmitting signal includes multiple
Frequency, and receive signal also include multiple frequencies when, i.e., receiving and transmitting signal be multichannel, in the prior art, duplexer cannot achieve
The isolation of multichannel receiving and transmitting signal can only use mutiple antennas, the signal of each frequency respectively to use an independent antenna, cause
Whole set equipment volume, weight, cost increase.
Invention content
The object of the present invention is to provide a kind of micro-strip duplexer, this band duplexer will solve the prior art
Middle duplexer cannot achieve the technical issues of multichannel receive-send signal isolation.
This micro-strip duplexer of the present invention, including medium substrate and metal ground plane, metal ground plane covering
In the side of the medium substrate, wherein the other side of the medium substrate is provided with signal transmission coupling channel, described
Signal transmission coupling channel be made of the strip metal layer being attached on medium substrate, the both ends of the strip metal layer are set
It is equipped with antenna connection terminal mouth, there are one first frequency filter and a second frequency filter, bands for connection on strip metal layer
There are one third frequency coupling filter and a 4th frequency coupling filter, the thirds for the side setting of shape metal layer
Include respectively reception signal output end in frequency coupling filter and the 4th frequency coupling filter, the first frequency and
Second frequency is two frequencies for emitting signal, and the third frequency and the 4th frequency are two for receiving signal
Frequency.
Further, strip metal layer shows as tool there are one the ring for disconnecting notch on medium substrate, and indentation, there connects day
Line, the ring is rounded or oval or rectangle or round rectangle or similar circle, ellipse, rectangle,
Or the shape of round rectangle.
Further, first frequency filter and second frequency filter include respectively the linear of two or more numbers
Conductor patch, the linear conductor patch of described two or more numbers is mutually parallel interval, wherein there is a conductor patch
One end of piece is connect with strip metal layer.
Further, it include respectively one article first in third frequency coupling filter and the 4th frequency coupling filter
Microstrip feed line, second microstrip feed line and a third microstrip feed line, second microstrip feed line is linearly, described
First microstrip feed line and third microstrip feed line include that there are one the straight line portion with the second microstrip feed line parallel interval, the first micro-strips
One end of the straight line portion of feeder line is also connected with there are one extension, and the extension is adjacent and parallel or close with strip metal layer
Like parallel interval, one end of third microstrip feed line is provided with reception signal output port.
Further, the medium substrate is FR4 or PTFE medium substrates.
The present invention operation principle be：Strip metal layer is signal transmission coupling channel, the impedance of strip metal layer and day
Line is effectively matched.The impedance of first frequency filter is matched with first frequency transmitter and signal transmission coupling channel, to first
Frequency f1It is filtered.The impedance of second frequency filter is matched with second frequency transmitter and signal transmission coupling channel, right
Second frequency f2It is filtered.First frequency f1With second frequency f2It is two different frequencies.Third frequency coupling filter with
Third frequency receiver and the matching of signal transmission coupling channel, to third frequency f3It is filtered.4th frequency coupling filter
It is matched with the 4th frequency receiver and signal transmission coupling channel, to the 4th frequency f4It is filtered.First frequency f1, second frequency
Rate f2, third frequency f3With the 4th frequency f4It is four different frequencies.Transmitter emits first frequency f1Signal when, pass through
First frequency filter, signal is substantially lossless to be passed through, and enters transmitting by signal transmission coupling channel, remaining second frequency
Filter, third frequency coupling filter and the 4th frequency coupling filter are to first frequency f1Signal is realized without response
Mutual is effectively isolated.Transmitter emits second frequency f2Signal when, operation principle and transmitting first frequency f1Letter
It is number identical.Antenna receives third frequency f3Signal when, by signal transmission coupling channel be coupled to third frequency coupling filter
Wave device simultaneously responds, and third frequency coupling filter will receive signal transmission to third frequency receiver.Antenna receives the 4th frequency
Rate f4Signal when, operation principle with receive transmitting third frequency f3Signal it is identical.
The present invention compares with prior art, and effect is positive and apparent.The present invention is arranged one in medium substrate
Signal transmission coupling channel, filter of the connection for emitting signal on signal transmission coupling channel are coupled in signal transmission
It being coupled to receive the filter of signal on channel, each filter respectively corresponds to a frequency, when each filter works,
His filter to signal without response, realize it is mutual be effectively isolated, common antenna can be shared, it is each without being directed to
The independent antenna of set of frequency reduces the volume, weight and cost of whole set equipment.
Description of the drawings
Fig. 1 is the operation principle schematic diagram of duplexer in the prior art.
Fig. 2 is the local section structural schematic diagram of the micro-strip duplexer of the present invention.
Fig. 3 is the structural schematic diagram of the micro-strip duplexer of the present invention.
Specific implementation mode
Embodiment 1:
As shown in Figures 2 and 3, improved micro-strip duplexer of the invention, including medium substrate 1 and metal ground plane 2, it is described
Metal ground plane 2 is covered in the side of the medium substrate 1, wherein the other side of the medium substrate 1 is provided with signal
Coupling channel is transmitted, the signal transmission coupling channel is made of the strip metal layer 3 being attached on medium substrate 1, described
Strip metal layer 3 be provided at both ends with antenna connection terminal mouth 8, on strip metal layer 3 there are one first frequency filters 4 for connection
With a second frequency filter 5, there are one third frequency coupling filter 6 and one for the side setting of strip metal layer 3
Four frequency coupling filters 7 include respectively in the third frequency coupling filter 6 and the 4th frequency coupling filter 7
Signal output end is received, the first frequency and second frequency are two kinds of frequencies for emitting signal, third frequency
Rate and the 4th frequency are two frequencies for receiving signal.
Further, strip metal layer 3 shown as on medium substrate 1 tool there are one disconnect notch ring, the ring
Rounded or oval or rectangle or round rectangle or similar round, ellipse, rectangle or round rectangle
Shape.
Further, first frequency filter 4 and second frequency filter 5 include respectively the straight line of two or more numbers
The conductor patch of shape, the linear conductor patch of described two or more numbers are mutually parallel interval, wherein there is a conductor
One end of patch is connect with strip metal layer 3.
Further, it include respectively one article in third frequency coupling filter 6 and the 4th frequency coupling filter 7
One microstrip feed line, second microstrip feed line and a third microstrip feed line, second microstrip feed line is linearly, described
The first microstrip feed line and third microstrip feed line include straight line portion there are one with the second microstrip feed line parallel interval, first is micro-
One end of the straight line portion of ribbon feeder is also connected with there are one extension, the extension it is adjacent and parallel with strip metal layer 3 or
The one end at person's less parallel interval, third microstrip feed line is provided with reception signal output port.
Further, the medium substrate 1 is FR4 or PTFE medium substrates 1.
The operation principle of the present embodiment is：Strip metal layer 3 is signal transmission coupling channel, the impedance of strip metal layer 3
It is effectively matched with antenna.The impedance of first frequency filter 4 is matched with first frequency transmitter and signal transmission coupling channel, right
First frequency f1It is filtered.The impedance of second frequency filter 5 and second frequency transmitter and signal transmission coupling channel
Match, to second frequency f2It is filtered.First frequency f1With second frequency f2It is two different frequencies.The coupling filter of third frequency
Wave device 6 is matched with third frequency receiver and signal transmission coupling channel, to third frequency f3It is filtered.4th frequency couples
Filter 7 is matched with the 4th frequency receiver and signal transmission coupling channel, to the 4th frequency f4It is filtered.In embodiment,
First frequency f1It is 800MHz, second frequency f2It is 900MHz, third frequency f3It is 1700MHz, the 4th frequency f4It is 2500MHz.
Transmitter emits first frequency f1Signal when, by first frequency filter 4, signal is substantially lossless to be passed through, by signal
Transmission coupling channel enters antenna transmitting, remaining second frequency filter 5, third frequency coupling filter 6 and the 4th frequency
Coupling filter 7 is to first frequency f1Signal realizes mutual be effectively isolated without response.The second frequency of transmitter transmitting
Rate f2Signal when, operation principle and transmitting first frequency f1Signal it is identical.Antenna receives third frequency f3Signal
When, it is coupled to third frequency coupling filter 6 by signal transmission coupling channel, third frequency coupling filter 6, which will receive, to be believed
Number it is transferred to receiver.Antenna receives the 4th frequency f4Signal when, operation principle with receive third frequency f3Signal phase
Together.
Claims (4)
1. a kind of micro-strip duplexer, including medium substrate and metal ground plane, the metal ground plane is covered in Jie
The side of matter substrate, it is characterised in that：The other side of the medium substrate is provided with signal transmission coupling channel, the letter
Number transmission coupling channel be made of the strip metal floor being attached on medium substrate, the strip metal layer is provided at both ends with
Antenna connection terminal mouth, there are one first frequency filter and a second frequency filter, band-like gold for connection on strip metal layer
There are one third frequency coupling filter and a 4th frequency coupling filter, the third frequencies for the side setting of category layer
Include respectively reception signal output end in coupling filter and the 4th frequency coupling filter, the first frequency and second
Frequency is two frequencies for emitting signal, and the third frequency and the 4th frequency are two frequencies for receiving signal
Rate.
2. micro-strip duplexer as described in claim 1, it is characterised in that：Strip metal layer shows as having on medium substrate
The ring of one disconnection notch, the ring is rounded or oval or rectangle or round rectangle or similar circle
The shape of shape, ellipse, rectangle or round rectangle.
3. micro-strip duplexer as described in claim 1, it is characterised in that：First frequency filter and second frequency filter are each
From the linear conductor patch for including two or more numbers, the linear conductor patch phase of described two or more numbers
Mutual parallel interval, wherein there is one end of a conductor patch to be connect with strip metal layer.
4. micro-strip duplexer as described in claim 1, it is characterised in that：Third frequency coupling filter and the coupling of the 4th frequency
Include respectively first microstrip feed line, second microstrip feed line and a third microstrip feed line in filter, it is described
The second microstrip feed line it is linearly, first microstrip feed line and third microstrip feed line include there are one with the second micro-strip
The straight line portion of feeder line parallel interval, one end of the straight line portion of the first microstrip feed line are also connected with that there are one extension, the extensions
Portion is adjacent and parallel with strip metal layer or less parallel interval, one end of third microstrip feed line are provided with reception signal output
Port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364290.6A CN108390135B (en) | 2018-04-23 | 2018-04-23 | Microstrip duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364290.6A CN108390135B (en) | 2018-04-23 | 2018-04-23 | Microstrip duplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108390135A true CN108390135A (en) | 2018-08-10 |
| CN108390135B CN108390135B (en) | 2020-02-18 |
Family
ID=63065657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810364290.6A Active CN108390135B (en) | 2018-04-23 | 2018-04-23 | Microstrip duplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108390135B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815804A (en) * | 2005-11-11 | 2006-08-09 | 中国科学院上海微系统与信息技术研究所 | Compensation-type spiral micro-band resonance unit and annular coupler formed thereby |
| CN102195110A (en) * | 2010-03-12 | 2011-09-21 | 财团法人交大思源基金会 | Multifrequency duplexing circulator |
| CN203166051U (en) * | 2012-12-21 | 2013-08-28 | 京信通信系统（中国）有限公司 | Microstrip triplexer |
| CN104577268A (en) * | 2015-01-04 | 2015-04-29 | 华南理工大学 | Planar lowpass-bandpass triplexer |
| CN104681900A (en) * | 2015-03-06 | 2015-06-03 | 西安电子科技大学 | High-isolation duplexer with coupled electromagnetic shunt |
| CN106785299A (en) * | 2016-12-21 | 2017-05-31 | 中国航空工业集团公司雷华电子技术研究所 | A kind of method for designing of multilayer acoustical panel strip line duplexer |
| CN208142317U (en) * | 2018-04-23 | 2018-11-23 | 上海中航欣盛航空技术有限公司 | micro-strip duplexer |
-
2018
- 2018-04-23 CN CN201810364290.6A patent/CN108390135B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815804A (en) * | 2005-11-11 | 2006-08-09 | 中国科学院上海微系统与信息技术研究所 | Compensation-type spiral micro-band resonance unit and annular coupler formed thereby |
| CN102195110A (en) * | 2010-03-12 | 2011-09-21 | 财团法人交大思源基金会 | Multifrequency duplexing circulator |
| CN203166051U (en) * | 2012-12-21 | 2013-08-28 | 京信通信系统（中国）有限公司 | Microstrip triplexer |
| CN104577268A (en) * | 2015-01-04 | 2015-04-29 | 华南理工大学 | Planar lowpass-bandpass triplexer |
| CN104681900A (en) * | 2015-03-06 | 2015-06-03 | 西安电子科技大学 | High-isolation duplexer with coupled electromagnetic shunt |
| CN106785299A (en) * | 2016-12-21 | 2017-05-31 | 中国航空工业集团公司雷华电子技术研究所 | A kind of method for designing of multilayer acoustical panel strip line duplexer |
| CN208142317U (en) * | 2018-04-23 | 2018-11-23 | 上海中航欣盛航空技术有限公司 | micro-strip duplexer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108390135B (en) | 2020-02-18 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 200120 room 2203, 1200 Pudong Avenue, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Applicant after: AVIC SHANGHAI XINSHENG AVIATION TECHNOLOGY Co.,Ltd. Address before: 201617 158 Tang Ming Road, Shek Hu Town, Songjiang District, Shanghai Applicant before: AVIC SHANGHAI XINSHENG AVIATION TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240112 Address after: No. 158 Tangming Road, Shihudang Town, Songjiang District, Shanghai, April 2016 Patentee after: Shanghai Eagle Peak Industrial Co.,Ltd. Address before: Room 2203, No. 1200, Pudong Avenue, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai 200120 Patentee before: AVIC SHANGHAI XINSHENG AVIATION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240424 Address after: No.398, Xinlu Road, Xinbang Town, Songjiang District, Shanghai, 201600 Patentee after: Tushibao (Shanghai) Digital Technology Co.,Ltd. Country or region after: China Address before: No. 158 Tangming Road, Shihudang Town, Songjiang District, Shanghai, April 2016 Patentee before: Shanghai Eagle Peak Industrial Co.,Ltd. Country or region before: China |