EP1054467A1 - Verfahren zur Einstellung des Koppelfaktors eines Streifenleitungsrichtkopplers und Streifenleitungsrichtkoppler - Google Patents
Verfahren zur Einstellung des Koppelfaktors eines Streifenleitungsrichtkopplers und Streifenleitungsrichtkoppler Download PDFInfo
- Publication number
- EP1054467A1 EP1054467A1 EP00106481A EP00106481A EP1054467A1 EP 1054467 A1 EP1054467 A1 EP 1054467A1 EP 00106481 A EP00106481 A EP 00106481A EP 00106481 A EP00106481 A EP 00106481A EP 1054467 A1 EP1054467 A1 EP 1054467A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling factor
- stripline
- potting
- potting compound
- circuit board
- 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.)
- Granted
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
Definitions
- the invention relates to a method for setting the coupling factor a stripline coupler with at least two strip conductors arranged on a printed circuit board, one Device for carrying out the method and a stripline coupler with at least two on a circuit board arranged striplines.
- Stripline couplers are made up of several striplines, the z. B. opposite each other on a circuit board are arranged.
- the stripline can, for. B. attached in printed circuit technology on the circuit board Be conductor tracks.
- Stripline couplers are used to transmit RF signals from one Strips to transfer to the other by coupling and are therefore used in multiple taps for RF signals, for example in community antenna systems, used to control those of a common antenna received signals on several Distribute to consumers.
- For a perfect signal line and ensuring coupling is a precisely defined coupling factor within specified tolerances, the is difficult to achieve, however, because the PCB thickness, the thickness, the width and the spacing of the copper conductor tracks fluctuate greatly. The coupling factors therefore vary widely, so that a relatively large number of stripline couplers as a committee must be removed from production.
- the procedure for setting the coupling factor solves this Task in that the stripline of the stripline coupler be potted with a potting compound.
- a given coupling factor is used for a stripline coupler achieved by the stripline for Cast the coupling factor with a potting compound are.
- the invention is based on the knowledge that through the Potting the stripline with a potting compound the electrical Properties of the stripline coupler changed and uses this to improve the electrical properties of the stripline coupler.
- a stripline coupler to be potted with a potting compound VM K lead measuring lines ML to a network analyzer A, which is connected to a Control unit S is connected.
- the control unit S controls A device V for potting via a control line SL of the stripline coupler K.
- the network analyzer A sends test signals via the measuring lines ML to the stripline coupler to be potted with the potting compound VM K, which sits in a housing G, around which Measure coupling factor.
- the control unit S controls the Potting device V, for example a potting machine, so that so much potting compound VM in the housing G, where the stripline coupler K is seated until the Network analyzer A measures the specified coupling factor.
- the stripline coupler K is, so to speak, above the height H of the potting matched.
- the process can preferably be used in the production of Insert stripline couplers.
- the with the potting compound VM stripline couplers K to be cast become automatic connected to the network analyzer A via the measuring lines ML; controlled by the control unit S, the casting machine pours V so much potting compound VM in the housing G that the required Coupling factor is achieved.
- the encapsulated stripline coupler is now separated from the measuring line ML, so that the next one can be connected.
- control unit S By programming the control unit S to different Coupling factors can be used automatically for every stripline coupler be adjusted to another coupling factor.
- the production is very quickly switchable to other coupling factors and adaptable at any time to the specific requirements of the customers.
- a first advantage of the method according to the invention lies in that the stripline coupler on the assembly line with the Potting compound to be shed, and that the coupling factor by means of of the network analyzer is checked.
- a second advantage can be seen in the fact that a preliminary test of the circuit boards with the strip lines arranged on it are omitted because the Stripline couplers can be adjusted automatically.
- a third advantage is that the required Coupling factor is observed very precisely. The committee on unusable stripline couplers is therefore on reduced to a minimum.
- Figure 1 is a strip line coupler K without potting compound shown.
- the circuit board P on which the stripline is arranged are, sits in a housing G, which is for potting with the Potting compound is open at the top.
- FIG. 2 shows a potted with the potting compound VM Stripline coupler K shown.
- the housing G is with the potting compound VM up to a potting height H filled.
- the potting compound VM can only above the circuit board P or provided below the circuit board P. his. After potting with the potting compound VM, the housing G completely closed.
- the stripline coupler according to the invention has a number advantages.
- stripline couplers are without additional during transport Measures are sufficient before shocks protected. They can therefore also be used in vehicles where they are subjected to strong mechanical stresses caused by vibrations or are exposed to vibrations, for example in one Helicopter.
- the potting compound advantageously causes the Heat generated in the components on the circuit board better is dissipated. There are therefore much smaller components use, which leads to a reduction in costs and HF technology is also cheaper.
- the potting compound can be made of transparent or opaque Material.
- Damaged components can be found with a transparent potting compound well recognizable on the circuit board.
- one opaque potting compound a certain copy protection because the structure of the circuit board is not visible.
- Copy protection because the circuit arrangement only in connection works optimally with the sealing compound. Will the circuit arrangement reproduced without the sealing compound, this is how it works not because of the coupling factor because of the missing Potting compound is not adjusted to the specified value.
- Casting resin is particularly suitable as a potting compound Heat conduction z.
Landscapes
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
- Figur 1
- eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens,
- Figur 2
- einen StreifenleitungsKoppler vor dem Verguß und
- Figur 3
- einen erfindungsgemäßen StreifenleitungsKoppler nach dem Verguß.
- A
- Netzwerkanalysator
- DL
- Datenleitung
- G
- Gehäuse
- H
- Füllhöhe
- K
- StreifenleitungsKoppler
- P
- Leiterplatte
- S
- Steuergerät
- SL
- Steuerleitung
- V
- Vorrichtung zum Vergießen
- VM
- Vergußmasse
Claims (12)
- Verfahren zur Einstellung des Koppelfaktors eines StreifenleitungsKopplers (K) mit mindestens zwei auf einer Leiterplatte (P) angeordneten Streifenleitern,
dadurch gekennzeichnet, dass die Streifenleiter mit einer Vergußmasse (VM) vergossen werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass die Menge der Vergußmasse (VM) so gewählt ist, dass ein vorggebbarer Koppelfaktor erzielt wird. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet, dass eine Leiterplatte (P), auf der die Streifenleiter angeordnet sind, in einem Gehäuse (G) angeordnet ist, und dass das Gehäuse (G) mit so viel vergußmasse (VM) gefüllt wird, bis der vorggebbare Koppelfaktor erreicht ist. - Verfahren nach Anspruch 3,
dadurch gekennzeichnet, dass der StreifenleitungsKoppler (K) über Meßleitungen (ML) mit den Eingängen eines Netzwerkanalysators (A) zum Messen des Koppelfaktors verbunden ist, dass der Netzwerkanalysator (A) über eine Datenleitung (DL) mit einem Steuergerät (S) verbunden ist, dass eine Vorrichtung (V) zum Vergießen über eine Steuerleitung (SL) so steuert, dass die Vorrichtung (V) zum Vergießen so viel Vergußmasse (M) in das Gehäuse (G) füllt, bis ein vorgebbarer Koppelfaktor vom Netzwerkanalysator (A) gemessen wird. - Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass der StreifenleitungsKoppler (K) über Meßleitungen (ML) mit den Eingängen eines Netzwerkanalysators (A) zum Messen des Koppelfaktors verbunden ist, dass der Netzwerkanalysator (A) über eine Datenleitung (DL) mit einem Steuergerät (S) verbunden ist, das über eine Steuerleitung (SL) mit einer Vorrichtung (V) zum Vergießen verbunden ist. - Verfahren bzw. Vorrichtung nach Anspruch 4 bzw. 5,
dadurch gekennzeichnet, dass der Koppelfaktor an der Steuereinheit (S) einstellbar ist. - StreifenleitungsKoppler (K) mit mindestens zwei auf einer Leiterplatte (P) angeordneten Streifenleitern,
dadurch gekennzeichnet, dass die Streifenleiter zur Einstellung des Koppelfaktors mit einer Vergußmasse (VM) vergossen sind. - StreifenleitungsKoppler nach Anspruch 7,
dadurch gekennzeichnet, dass die Leiterplatte (P) in einem Gehäuse (G) sitzt und dass das Gehäuse (G) mit so viel Vergußmasse (VM) gefüllt ist, dass ein vorgebbarer Koppelfaktor erzielt wird. - StreifenleitungsKoppler nach Anspruch 7 oder 8,
dadurch gekennzeichnet, dass über und unter der Leiterplatte (P) Vergußmasse (VM) vorgesehen ist. - Verfahren, Vorrichtung oder StreifenleitungsKoppler nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Vergußmasse (VW) eine wärmeleitende Komponente enthält. - Verfahren, Vorrichtung oder StreifenleitungsKoppler nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Vergußmasse (VM) durchsichtig ist. - Verfahren, Vorrichtung oder StreifenleitungsKoppler nach einem der vorangehenden Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass die Vergußmasse (VM) undurchsichtig ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922831A DE19922831C2 (de) | 1999-05-19 | 1999-05-19 | Verfahren zur Einstellung des Koppelfaktors eines Streifenleitungsrichtkopplers und Streifenleitungsrichtkoppler |
DE19922831 | 1999-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1054467A1 true EP1054467A1 (de) | 2000-11-22 |
EP1054467B1 EP1054467B1 (de) | 2006-11-22 |
Family
ID=7908431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00106481A Expired - Lifetime EP1054467B1 (de) | 1999-05-19 | 2000-03-25 | Verfahren zur Einstellung des Koppelfaktors eines Streifenleitungsrichtkopplers und Streifenleitungsrichtkoppler |
Country Status (3)
Country | Link |
---|---|
US (1) | US6573806B1 (de) |
EP (1) | EP1054467B1 (de) |
DE (2) | DE19922831C2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7193323B2 (en) * | 2003-11-18 | 2007-03-20 | International Business Machines Corporation | Electroplated CoWP composite structures as copper barrier layers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05121925A (ja) * | 1991-10-25 | 1993-05-18 | Toko Inc | マイクロストリツプアンテナの共振周波数調整方法 |
GB2284095A (en) * | 1990-04-05 | 1995-05-24 | Gen Electric | Microwave component having tailored operating characteristics and method of tailoring |
JPH08154009A (ja) * | 1994-11-29 | 1996-06-11 | Murata Mfg Co Ltd | 方向性結合器及びその製造方法 |
JPH10190321A (ja) * | 1996-12-20 | 1998-07-21 | Nec Corp | 誘電体絶縁膜を備えた結合素子 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2934719A (en) * | 1955-11-14 | 1960-04-26 | Gen Electric | High frequency couplers |
US3478281A (en) * | 1968-07-25 | 1969-11-11 | Hewlett Packard Co | Tem mode directional coupler having dielectric compensating means |
US3742392A (en) * | 1971-12-13 | 1973-06-26 | Rca Corp | Self loaded uneven power divider |
US3768042A (en) * | 1972-06-07 | 1973-10-23 | Motorola Inc | Dielectric cavity stripline coupler |
US3886498A (en) * | 1974-07-22 | 1975-05-27 | Us Navy | Wideband, matched three port power divider |
JPH0769376B2 (ja) | 1989-08-30 | 1995-07-31 | マツダ株式会社 | 車両用多重伝送装置 |
US5012209A (en) * | 1990-01-12 | 1991-04-30 | Raytheon Company | Broadband stripline coupler |
US5410179A (en) * | 1990-04-05 | 1995-04-25 | Martin Marietta Corporation | Microwave component having tailored operating characteristics and method of tailoring |
US5227730A (en) * | 1992-09-14 | 1993-07-13 | Kdc Technology Corp. | Microwave needle dielectric sensors |
DE19503213C2 (de) | 1995-02-02 | 1996-10-17 | Becker Gmbh | Verfahren zur gemeinsamen Übertragung von digitalen Quell- und Steuerdaten zwischen über Datenleitungen verbundenen Datenquellen und -senken |
US6097271A (en) * | 1997-04-02 | 2000-08-01 | Nextronix Corporation | Low insertion phase variation dielectric material |
DE19723274C2 (de) | 1997-06-04 | 2000-05-25 | Harting Kgaa | Datenübertragungssystem |
-
1999
- 1999-05-19 DE DE19922831A patent/DE19922831C2/de not_active Expired - Fee Related
-
2000
- 2000-03-25 EP EP00106481A patent/EP1054467B1/de not_active Expired - Lifetime
- 2000-03-25 DE DE50013762T patent/DE50013762D1/de not_active Expired - Fee Related
- 2000-05-17 US US09/572,772 patent/US6573806B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2284095A (en) * | 1990-04-05 | 1995-05-24 | Gen Electric | Microwave component having tailored operating characteristics and method of tailoring |
JPH05121925A (ja) * | 1991-10-25 | 1993-05-18 | Toko Inc | マイクロストリツプアンテナの共振周波数調整方法 |
JPH08154009A (ja) * | 1994-11-29 | 1996-06-11 | Murata Mfg Co Ltd | 方向性結合器及びその製造方法 |
JPH10190321A (ja) * | 1996-12-20 | 1998-07-21 | Nec Corp | 誘電体絶縁膜を備えた結合素子 |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 17, no. 487 (E - 1427) 3 September 1993 (1993-09-03) * |
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31) * |
Also Published As
Publication number | Publication date |
---|---|
DE19922831C2 (de) | 2002-01-24 |
US6573806B1 (en) | 2003-06-03 |
DE50013762D1 (de) | 2007-01-04 |
DE19922831A1 (de) | 2001-06-28 |
EP1054467B1 (de) | 2006-11-22 |
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