EP0947030B1 - Mikrowellenfilter - Google Patents
Mikrowellenfilter Download PDFInfo
- Publication number
- EP0947030B1 EP0947030B1 EP97953630A EP97953630A EP0947030B1 EP 0947030 B1 EP0947030 B1 EP 0947030B1 EP 97953630 A EP97953630 A EP 97953630A EP 97953630 A EP97953630 A EP 97953630A EP 0947030 B1 EP0947030 B1 EP 0947030B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- strip conductor
- arrangement according
- main surface
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20336—Comb or interdigital filters
Definitions
- bit transport systems such as. B.
- Connection networks for ATM A-synchronous Transfer Mode
- AN / A for: Access Network / ATM
- crossover crossovers with high demands on selectivity and with low losses up to frequencies of 1 GHz.
- the subject of the application relates to an arrangement for filtering an electrical signal, in particular a bandline filter, according to claim 1.
- a stripline filter is known from EP 0373028, in which those applied to a first surface of the substrate Band conductor of a metallization on the second Surface of the substrate is applied over the entire surface and the connected to the reference potential.
- the known stripline filter folded to reduce the area occupied, the metallizations leading the reference potential lie next to each other and the band leader in any case the reference potential opposite metallization.
- the proposed resonator arrangement with folded resonators without an intermediate reference potential plane the known arrangement a shorter length of the strip conductor, a higher quality and further a smaller coupling between the individual resonators. This will decrease Field displacement losses and that the folded Resonators do not share a full length Ground covering are coupled, returned. Otherwise leaves the proposed stripline filter in an automated Manufacture process and thus has the advantage of low manufacturing effort.
- the ends are associated Band leader cuts by at least one electrical conductive via connected to a strip conductor. This measure brings an independent of the edge of the substrate Arrangement of a strip conductor resonator with itself.
- the ends of the band ladder over one by an inductor or a capacitance given coupling element connected. That way you can Filters of various types (e.g. low-pass or bandpass) as much as you like regarding bandwidth and frequency will be realized.
- a discrete coupling element According to a special training one carries on Conductor applied substrate a discrete coupling element. In this way, a hybrid filter is formed at which a band conductor and a coupling element on one Substrate are arranged. You can continue by equipping with different coupling elements filter different Type (e.g. low pass or band pass) as much as you like in terms of bandwidth and frequency position with the same Substrate plate can be realized.
- Type e.g. low pass or band pass
- the band line filter shown in FIGS. 1a and 1b is with a dielectric substrate S made by a ceramic can be given, formed.
- the substrate is special given by a thin, rectangular substrate plate of thickness h, where the opposing large area Surfaces a first main surface HO 1 and a second Form the main surface HO 2.
- the length 1 of a strip conductor section is the same a quarter of the wavelength ⁇ of the frequency to be treated of an electrical signal.
- On the second main surface are to the strip conductor sections of the first main surface in the top view of the main surface congruent Band conductor sections arranged.
- a band conductor section of the first main surface and the corresponding congruent Band conductor sections of the second main surface are through suitable means electrically connected to a strip conductor.
- One with the ribbon conductor section of the first main surface connected strip conductor section of the second main surface forms a ⁇ / 4 resonator given by a band conductor.
- connection of the strip conductor sections forms, so to speak the short circuit of the ⁇ / 4 resonator. Close the ends of the Band conductor sections with the edge of the substrate, takes place the connection advantageously by means of a Narrow side SF of the metallization carried around the substrate. Another connection of associated strip conductor sections is through one or more vias (DK in FIG 7) given the ends of the strip conductor sections.
- the ends of the Band conductors on the second main surface are with the reference potential, This is also known as mass in specialist circles connecting.
- the connection with the reference potential is caused by a metallization that is perpendicular to the The longitudinal axis of the strip conductor runs and that of the second Main surface is applied.
- the metallization for that Reference potential is around in a preferred embodiment the narrow side and possibly a little bit on the first Main surface led around.
- the ends of the ribbon conductors are on the first major surface connected to each other with coupling elements.
- the coupling elements are due to coupling impedances such.
- B. Capacitors and / or coupling coils are given.
- conductor tracks LB which is a recording for given as discrete components coupling elements, such as e.g. a chip capacitor C1..C9 and / or a discrete coupling coil L1..L3 and form an electrical connection between the ends of the strip conductor sections and the coupling elements create.
- the conductor tracks can be designed in this way be that they have the coupling elements as so-called Form printed circuit.
- the ends of the outer band conductors on the first main surface may be over Coupling elements with an input connection E or with connected to an output terminal A.
- the input port and / or the output connection can be on the first main surface applied and via conductor tracks with the ends of the outer band conductor.
- the arrangement shown in FIG. 1 forms a stripline filter.
- the strip conductor sections connected to form a strip conductor form a folded strip conductor resonator.
- Arrangement of discrete coupling elements on the The stripline filter substrate is specifically a hybrid filter educated.
- Figures 2a and 2b show electrical equivalent to each other Equivalent circuits of FIG 1 valid for the ⁇ / 4 frequency.
- the equivalent circuit is a band conductor resonator R as a parallel circuit a capacitance and an inductance.
- FIG. 3 shows the course of the attenuation in dB over the frequency for the bandpass from FIG. 1.
- stripline filter with different long resonators R1..R4.
- the strip conductor sections are like this arranged that their ends - regardless of their length - with complete one edge of the substrate.
- the one, so to speak Short-circuiting connection of associated strip conductor sections is by one around the narrow side of the substrate led around metallization causes.
- the the reference potential leading metallization is on the second main surface of the substrate all the way up to the strip conductor sections.
- FIG. 5 shows the electrical equivalent circuit valid for the ⁇ / 4 frequency shown in FIG.
- the equivalent circuit is a band conductor resonator R as a parallel connection of a capacitance and an inductor.
- FIG. 6 shows the course of the attenuation in dB over the frequency for the bandpass from FIG. 4.
- FIG. 7 shows a stripline filter in which the connection associated strip conductor sections by means of electrically conductive Vias DK is effected. Multiple vias can have two associated strip conductor sections connect a band leader. In this embodiment the arrangement of the strip conductor sections is advantageously independent selectable from the location of the edge of the substrate.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
- FIG 1a und FIG 1b
- perspektivische Darstellungen eines anmeldungsgemäßen Streifenleitungsfilters,
- FIG 2a und FIG 2b
- zueinander äquivalente elektrische Ersatzschaltungen für das Filter nach FIG 1, gültig für die λ/4 Frequenz,
- FIG 3
- den Dämpfungsverlauf eines Filters nach FIG 1,
- FIG 4
- ein dielektrisches Bandpaßfilter mit Bandleitungsresonatoren unterschiedlicher Länge,
- FIG 5
- eine elektrische Ersatzschaltung für das Filter nach FIG 4, gültig für die λ/4 Frequenz,
- FIG 6
- den Dämpfungsverlauf eines Filters nach FIG 5 und
- FIG 7
- einen Streifenleitungsfilter mit Durchkontaktierungen.
Claims (10)
- Anordnung zur Filterung eines elektrischen Signals, insbesondere Bandleitungsfilter, bei demein dielektrisches Substrat gegeben ist, das eine erste Hauptoberfläche und eine der ersten Hauptoberfläche gegenüberliegende zweite Hauptoberfläche aufweisteine Mehrzahl von Bandleitern parallel angeordnet sindein Bandleiter gegebener Länge in einen auf der ersten Hauptoberfläche aufgebrachten ersten Abschnitt und in einen auf der zweiten Hauptoberfläche aufgebrachten zweiten Abschnitt geteilt istder erste Abschnitt und der zweite Abschnitt des Bandleiters sich überdeckender erste Abschnitt und der zweite Abschnitt des Bandleiters durch geeignete Mittel zu dem Bandleiter gegebener Länge verbunden sinddie ersten Enden der Bandleiter durch Verkopplungselemente verbunden sinddie ersten Enden der äußeren Bandleiter mit dem Eingang (E) bzw. mit dem Ausgang (A) der Anordnung verbunden sinddie zweiten Enden der Bandleiter durch eine auf der zweiten Hauptoberfläche aufgebrachte Metallisierung verbunden sind.
- Anordnung nach Anspruch 1
dadurch gekennzeichnet, daßdie Enden zugehöriger Bandleiterabschnitte mit der Kante des Substrats abschließen unddas Mittel zur Verbindung der Bandleiterabschnitte zu einem Bandleiter durch eine um die Schmalseite (SF) des Substrats herumgeführte Metallisierung gegeben ist. - Anordnung nach Anspruch 1
dadurch gekennzeichnet, daß
das Mittel zur Verbindung der Enden zugehöriger Bandleiterabschnitte zu einem Bandleiter durch mindestens eine elektrisch leitende Durchkontaktierung (DK) gegeben ist. - Anordnung nach einem der vorstehenden Ansprüche
dadurch gekennzeichnet, daß
die Enden der Bandleiter, die von der das Bezugspotential führenden Metallisierung abgewandt sind, über ein Verkopplungselement verbunden sind. - Anordnung nach einem der vorstehenden Ansprüche
dadurch gekennzeichnet, daß
eine Verbindung eines Endes eines Bandleiters, das von der das Bezugspotential führenden Metallisierung abgewandt ist, über eine auf das Substrat aufmetallisierte Leiterbahn (LB) gegeben ist. - Anordnung nach einem der Ansprüche 4 oder 5
dadurch gekennzeichnet, daß
ein Verkopplungselement mit einer Leiterbahn gebildet ist. - Anordnung nach einem der Ansprüche 4, 5 oder 6
dadurch gekennzeichnet, daß
eine Leiterbahn ein diskretes Verkopplungselement trägt. - Anordnung nach einem der Ansprüche 4, 5, 6 oder 7
dadurch gekennzeichnet, daß
ein Anschluß der Anordnung auf dem Substrat aufgebracht ist. - Anordnung nach einem der vorstehenden Ansprüche
gekennzeichnet durch
in Dickschichttechnik auf das Substrat aufgebrachte Metallisierungen. - Anordnung nach einem der Ansprüche 1 bis 9
gekennzeichnet durch
in Dünnschichttechnik auf das Substrat aufgebrachte Metallisierungen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1965279 | 1996-12-18 | ||
DE19652799A DE19652799C2 (de) | 1996-12-18 | 1996-12-18 | Mikrowellenfilter |
PCT/DE1997/002924 WO1998027607A1 (de) | 1996-12-18 | 1997-12-16 | Mikrowellenfilter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0947030A1 EP0947030A1 (de) | 1999-10-06 |
EP0947030B1 true EP0947030B1 (de) | 2003-03-05 |
Family
ID=7815220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97953630A Expired - Lifetime EP0947030B1 (de) | 1996-12-18 | 1997-12-16 | Mikrowellenfilter |
Country Status (5)
Country | Link |
---|---|
US (1) | US6265954B1 (de) |
EP (1) | EP0947030B1 (de) |
AT (1) | ATE233957T1 (de) |
DE (2) | DE19652799C2 (de) |
WO (1) | WO1998027607A1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040232982A1 (en) * | 2002-07-19 | 2004-11-25 | Ikuroh Ichitsubo | RF front-end module for wireless communication devices |
US7493094B2 (en) * | 2005-01-19 | 2009-02-17 | Micro Mobio Corporation | Multi-mode power amplifier module for wireless communication devices |
US7071783B2 (en) * | 2002-07-19 | 2006-07-04 | Micro Mobio Corporation | Temperature-compensated power sensing circuit for power amplifiers |
DE10313868B4 (de) * | 2003-03-21 | 2009-11-19 | Siemens Ag | Katheter zur magnetischen Navigation |
US20050205986A1 (en) | 2004-03-18 | 2005-09-22 | Ikuroh Ichitsubo | Module with integrated active substrate and passive substrate |
US7254371B2 (en) * | 2004-08-16 | 2007-08-07 | Micro-Mobio, Inc. | Multi-port multi-band RF switch |
US7262677B2 (en) * | 2004-10-25 | 2007-08-28 | Micro-Mobio, Inc. | Frequency filtering circuit for wireless communication devices |
US7548111B2 (en) * | 2005-01-19 | 2009-06-16 | Micro Mobio Corporation | Miniature dual band power amplifier with reserved pins |
US7084702B1 (en) * | 2005-01-19 | 2006-08-01 | Micro Mobio Corp. | Multi-band power amplifier module for wireless communication devices |
US7580687B2 (en) * | 2005-01-19 | 2009-08-25 | Micro Mobio Corporation | System-in-package wireless communication device comprising prepackaged power amplifier |
US7769355B2 (en) * | 2005-01-19 | 2010-08-03 | Micro Mobio Corporation | System-in-package wireless communication device comprising prepackaged power amplifier |
US7477108B2 (en) * | 2006-07-14 | 2009-01-13 | Micro Mobio, Inc. | Thermally distributed integrated power amplifier module |
EP1933411A4 (de) * | 2006-08-02 | 2010-12-15 | Murata Manufacturing Co | Filterelement und herstellungsverfahren für das filterelement |
JP5532604B2 (ja) * | 2006-12-01 | 2014-06-25 | 日立金属株式会社 | 積層型バンドパスフィルタ、高周波部品及びそれらを用いた通信装置 |
JP4770801B2 (ja) * | 2007-06-26 | 2011-09-14 | 横河電機株式会社 | 高周波フィルタ |
DE102008020597B4 (de) * | 2008-04-24 | 2017-11-23 | Epcos Ag | Schaltungsanordnung |
WO2011074105A1 (en) * | 2009-12-14 | 2011-06-23 | Nec Corporation | Resonant via structures in multilayer substrates and filters based on these via structures |
KR101295869B1 (ko) * | 2009-12-21 | 2013-08-12 | 한국전자통신연구원 | 복수의 절연층들에 형성된 선로 필터 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2648641B2 (fr) | 1988-11-30 | 1994-09-09 | Thomson Hybrides | Filtre passif passe-bande |
DE69014674T2 (de) * | 1989-02-16 | 1995-04-27 | Oki Electric Ind Co Ltd | Dielektrisches Filter des LC-Typs. |
DE69411973T2 (de) | 1993-03-25 | 1998-12-10 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Geschichteter dielektrischer Resonator und dielektrisches Filter |
JPH07240611A (ja) * | 1994-02-28 | 1995-09-12 | Kyocera Corp | 積層型共振器、フィルタの周波数調整方法 |
DE59505908D1 (de) * | 1994-12-22 | 1999-06-17 | Siemens Matsushita Components | Streifenleitungsfilter |
-
1996
- 1996-12-18 DE DE19652799A patent/DE19652799C2/de not_active Expired - Fee Related
-
1997
- 1997-12-16 EP EP97953630A patent/EP0947030B1/de not_active Expired - Lifetime
- 1997-12-16 WO PCT/DE1997/002924 patent/WO1998027607A1/de active IP Right Grant
- 1997-12-16 DE DE59709460T patent/DE59709460D1/de not_active Expired - Lifetime
- 1997-12-16 AT AT97953630T patent/ATE233957T1/de active
- 1997-12-16 US US09/331,125 patent/US6265954B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59709460D1 (de) | 2003-04-10 |
US6265954B1 (en) | 2001-07-24 |
WO1998027607A1 (de) | 1998-06-25 |
DE19652799A1 (de) | 1998-06-25 |
DE19652799C2 (de) | 1999-05-20 |
ATE233957T1 (de) | 2003-03-15 |
EP0947030A1 (de) | 1999-10-06 |
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