EP1032072A1 - Interdigitalkoppler - Google Patents
Interdigitalkoppler Download PDFInfo
- Publication number
- EP1032072A1 EP1032072A1 EP00103224A EP00103224A EP1032072A1 EP 1032072 A1 EP1032072 A1 EP 1032072A1 EP 00103224 A EP00103224 A EP 00103224A EP 00103224 A EP00103224 A EP 00103224A EP 1032072 A1 EP1032072 A1 EP 1032072A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- lines
- gate
- gates
- interdigital
- 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
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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
- H01P5/185—Edge coupled lines
- H01P5/186—Lange couplers
Definitions
- the present invention relates to a Interdigital coupler, its four gates over several in parallel adjacent lines are coupled, wherein two not directly adjacent lines each conductive air bridges are contacted so that over these interdigitally arranged lines between A galvanic connection is created for every two gates.
- Such an interdigital coupler which is often referred to in the literature as Lange coupler "is known from the textbook by RK Hoffmann: Integrated microwave circuits, Springer-Verlag 1983, page 260-262.
- This after the Long principle "implemented interdigital coupler has the advantages that it is very broadband and also has very small spatial dimensions. Since the entire line structure is carried out in planar line technology, this interdigital coupler can preferably be used in integrated microwave circuits. Because, as said in the introduction, the Gates are only galvanically connected to one another in pairs, i.e. there is no direct current connection between all the gates, it cannot be used to transmit a direct current supply to an active microwave circuit connected to the coupler, for example a PIN diode attenuator.
- the invention is therefore based on the object of specifying an interdigital coupler of the type mentioned, which has both the coupling properties of a Lange-Kopplers "has also been able to transmit a direct current to connected active microwave circuits without restriction.
- the five lines L1, L2, L3, L4, L5 are as follows as in a known one Lange couplers "coupled together and connected to the individual gates T1, T2, T3, T4:
- the line L1 is connected to the gate T1 and extends with its open end in the vicinity of the gate T4.
- the two lines L2 and L3 are connected to the gate T2.
- Line L2 is also connected to gate T4, whereas line L3 has an open end.
- the line L4 extends from the gate T3 and extends between the two lines L2 and L3 to the gate T2 without being in contact with it.
- Line L5, like line L2, is connected to gate T4 and is open at its end opposite gate T4. While the lines L1, L2 and L4 have a length of ⁇ / 4 ( ⁇ is the operating wavelength of the coupler), the two outer lines L3 and L5 have only a length of 1/2 * ⁇ / 4.
- the free ones are Ends of the lines with conductive air bridges contacted a line that is not directly adjacent. So exists between the open end of line L3 and the Line L1 is a conductive airlift LB1 between which open end of line L3 and line L2 a conductive Airlift LB2, between the open end of line L1 and the line L4 a conductive air bridge LB3 and between the open end of line L5 and line L1 a conductive Airlift LB4.
- the air bridges LB1, LB2, LB3, LB4 exist DC connection between gate T1 and gate T3 and also between gate T2 and gate T4. A DC transmission between gate T1 and gate T2 is not possible.
- gate T1 to gate T2 and T3 connected microwave circuit e.g. a PIN diode attenuator
- a direct current without a dedicated supply line being provided the following measure is taken.
- the coupling line KL is preferably half Length 1/2 * ⁇ / 4 to their starting point from gate 4 folded back. This creates the airlift LB5 shortest connection between the open end of the Coupling line KL and the open end of line L1.
- this coupling line KL is now created from gate T1 to gate T2 a direct current connection via line L1, the conductive Airlift LB5, the coupling line KL, the gate T4 and the Line L2.
- the distances between the individual lines L1, L2, L3, L4, L5 of 29 ⁇ m are sufficient.
- the interdigital coupler according to the invention there are higher distance tolerances of + -5 ⁇ m instead of + -3 ⁇ m in the conventional one Lange coupler ".
- the described coupler can be like the Lange couplers "can be used in the frequency range from 16 to 32 GHz.
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Junction Field-Effect Transistors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Waveguide Connection Structure (AREA)
Abstract
Description
Die Leitung L1 ist mit dem Tor T1 verbunden und erstreckt sich mit ihrem offenen Ende bis in die Nähe des Tores T4. Mit dem Tor T2 sind die beiden Leitungen L2 und L3 verbunden. Die Leitung L2 ist ebenfalls mit dem Tor T4 verbunden, wogegen die Leitung L3 ein offenes Ende aufweist. Vom Tor T3 geht die Leitung L4 aus und erstreckt sich zwischen den beiden Leitungen L2 und L3 bis zum Tor T2, ohne mit diesem kontaktiert zu sein. Die Leitung L5 ist wie die Leitung L2 mit dem Tor T4 verbunden und ist an seinem dem Tor T4 gegenüberliegenden Ende offen. Während die Leitungen L1, L2 und L4 eine Länge von λ/4 (λ ist die Betriebswellenlänge des Kopplers) haben, weisen die beiden äußeren Leitungen L3 und L5 nur eine Länge von 1/2 * λ/4 auf.
Claims (2)
- Interdigitalkoppler, dessen vier Tore über mehrere parallel nebeneinander verlaufende Leitungen (L1, L2, L3, L4) gekoppelt sind, wobei jeweils zwei nicht direkt benachbarte Leitungen über leitende Luftbrücken (LB1, LB2, LB3, LB4) miteinander kontaktiert sind, so daß über diese interdigital angeordneten Leitungen (L1, L2, L3, L4) zwischen jeweils zwei Toren (T1, T2, T3, T4) eine galvanische Verbindung entsteht, dadurch gekennzeichnet, daß mindestens neben einer der beiden äußeren Leitungen (L3, L5) eine zusätzliche Koppelleitung (KL) angeordnet ist, deren eines Ende mit demselben Tor (T4) verbunden ist wie die benachbarte äußere Leitung (L5) und deren anderes Ende über eine leitende Luftbrücke (LB5) mit der nächsten nicht direkt benachbarten Leitung (L1) kontaktiert ist.
- Interdigitalkoppler nach Anspruch 1, dadurch gekennzeichnet, daß die Koppelleitung (KL) auf die halbe Länge der interdigital angeordneten Leitungen gefaltet ist und daß das offene Ende der gefalteten Koppelleitung (KL) über eine leitende Luftbrücke (LB5) mit dem offenen Ende der nächsten nicht direkt benachbarten Leitung (L1) kontaktiert ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19907622A DE19907622C2 (de) | 1999-02-23 | 1999-02-23 | Interdigitalkoppler |
DE19907622 | 1999-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1032072A1 true EP1032072A1 (de) | 2000-08-30 |
EP1032072B1 EP1032072B1 (de) | 2004-09-15 |
Family
ID=7898469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00103224A Expired - Lifetime EP1032072B1 (de) | 1999-02-23 | 2000-02-17 | Interdigitalkoppler |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1032072B1 (de) |
AT (1) | ATE276590T1 (de) |
BR (1) | BR0000906A (de) |
DE (2) | DE19907622C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101453045B (zh) * | 2007-12-06 | 2013-03-06 | 北京中科新微特科技开发有限公司 | 一种兰格耦合器 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10335912A (ja) * | 1997-06-05 | 1998-12-18 | Mitsubishi Electric Corp | ランゲカップラ |
-
1999
- 1999-02-23 DE DE19907622A patent/DE19907622C2/de not_active Expired - Fee Related
-
2000
- 2000-02-17 EP EP00103224A patent/EP1032072B1/de not_active Expired - Lifetime
- 2000-02-17 DE DE50007717T patent/DE50007717D1/de not_active Expired - Fee Related
- 2000-02-17 AT AT00103224T patent/ATE276590T1/de not_active IP Right Cessation
- 2000-02-23 BR BR0000906-7A patent/BR0000906A/pt not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
D. FITZGERALD: "DESIGNING WITH THE DOUBLE LANGE COUPLER", RF DESIGN., vol. 11, no. 10, October 1988 (1988-10-01), CARDIFF PUBLISHING CO, ENGLEWOOD,CO., US, pages 46 - 48, XP002137418, ISSN: 0163-321X * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101453045B (zh) * | 2007-12-06 | 2013-03-06 | 北京中科新微特科技开发有限公司 | 一种兰格耦合器 |
Also Published As
Publication number | Publication date |
---|---|
DE19907622C2 (de) | 2002-11-28 |
BR0000906A (pt) | 2000-12-05 |
ATE276590T1 (de) | 2004-10-15 |
DE19907622A1 (de) | 2000-09-14 |
EP1032072B1 (de) | 2004-09-15 |
DE50007717D1 (de) | 2004-10-21 |
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