EP1014472B1 - Richtkoppler - Google Patents
Richtkoppler Download PDFInfo
- Publication number
- EP1014472B1 EP1014472B1 EP99123509A EP99123509A EP1014472B1 EP 1014472 B1 EP1014472 B1 EP 1014472B1 EP 99123509 A EP99123509 A EP 99123509A EP 99123509 A EP99123509 A EP 99123509A EP 1014472 B1 EP1014472 B1 EP 1014472B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupled
- striplines
- coupling
- stripline
- substrate
- 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
- 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
-
- 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
- H01P5/187—Broadside coupled lines
Definitions
- the invention relates to a broadband directional coupler according to the preamble of Patent claim 1.
- Broadband directional couplers of this type are known (Meinke / Gundlach, Taschenbuch the high-frequency technology, 5th edition, Springer Verlag, pages L 33 and L 34; E.M.T. JONES, MICROWAVE FILTERS, IMPEDANCE-MATCHING NETWORKS, AND COUPLING STRUCTURES, ARTECH HOUSE BOOKS, pages 776 and 790).
- the Cascade switched two, three or more coupling sections of different Coupling attenuation are here between spatially curved opposite Ladders formed, wherein the coupling sections with a fixed coupling a relatively small Distance between these conductors and the coupling sections with loose coupling a corresponding have greater distance of these conductors. In between, the ladder is kinked Transition sections formed.
- This known construction of such broadband Directional coupler is very complicated and expensive.
- This object is based on a broadband directional coupler according to the preamble of Patent claim 1 solved by the characterizing features.
- all coupling sections of different Coupling attenuation in planar line technology formed on a substrate and indeed the sections with loose coupling are coplanar coupled frontally Microstrip lines and the sections coupled with fixed coupling broadside Microstrip lines as they are known per se (for example according to Meinke-Gundlach, Page L 33, Table 1).
- the inventive principle is suitable for any number of cascade connected Coupling sections, as well as any long coupling sections.
- a broadband directional coupler can be constructed which in a wide frequency band from 470 to 860 MHz for the exact distribution of a High frequency power with mutual 90 ° phase position is suitable.
- FIG. 1 shows the plan view of a broadband directional coupler according to the invention
- FIG. 2 shows the back
- Fig. 3 shows the section along the line I-I.
- Fig. 1 shows a broadband directional coupler consisting of a total of three in cascade switched coupling sections 1, 2 and 3 different coupling damping
- the both outer coupling sections 1 and 3 have, for example, a coupling damping from - 19dB
- the intermediate middle section has a coupling loss of 2,2dB.
- Each of the coupling sections 1, 2 and 3 has an electrical length of ⁇ / 4.
- the two outer coupling sections 1 and 3 of relatively loose coupling are through two side by side guided and only frontally coupled together Coplanar lines 4 and 5 are formed, which are S-shaped curved to save space.
- the middle coupling portion 2 of relatively fixed coupling is by two broadside coupled microstrip lines 6 and 7 formed on opposite sides of the substrate 8 are formed and facing each other on the wide side.
- the back strip conductor 7 is provided on the back side of the substrate 8 continuous metal lamination 9 is provided with a recess 10.
- the one Strip conductor 5 of the two outer coupling sections 1 and 3 are each directly in formed on the front side of the substrate 8 strip conductor 6 of the middle Coupling section 2 on, the other strip conductor 4 of the two coupling sections 1 and 3 ends frontally at a distance in front of the strip conductor 6 formed on the upper side and is by means of through-connections 11 with the rear stripline 7 of the middle coupling section 2 galvanically connected.
- a Creating a defined environment on top of the substrate can be beneficial be on the middle coupling section 2 an additional shielding hood 12th set up with their edges on corresponding ground strip 13 on the Top of the substrate rests.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Connection Structure (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
Claims (2)
- Breitbandrichtkoppler mit mindestens zwei in Kaskade geschalteten Koppelabschnitten (1, 2, 3) unterschiedlicher Koppeldämpfung, bei dem die Koppelabschnitte (1, 3) mit loser Kopplung aus stirnseitig verkoppelten Streifenleitern (4, 5) und die Koppelabschnitte (2) mit fester Kopplung aus breitseitig verkoppelten Streifenleitern (6, 7) bestehen,
dadurch gekennzeichnet, daß die breitseitig verkoppelten Streifenleiter (6, 7) auf gegenüberliegenden Seiten eines Substrats (8) ausgebildet sind und dazu die rückseitige durchgehende Metallkaschierung (9) des Substrats (8) eine Ausnehmung (10) für den rückseitigen Streifenleiter (7) aufweist und die stirnseitig verkoppelten Streifenleiter daran anschließend auf der Vorderseite des gleichen Substrats (8) als Mikrostreifenleitungen ausgebildet sind. - Breitbandrichtkoppler nach Anspruch 1,
dadurch gekennzeichnet, daß der eine Streifenleiter (5) der stirnseitig verkoppelten Streifenleiter (4, 5) auf der Vorderseite des Substrats (8) unmittelbar in den vorderseitigen Streifenleiter (6) der breitseitig verkoppelten Streifenleiter (6, 7) übergeht und der andere Streifenleiter (4) der stirnseitig verkoppelten Streifenleiter (4, 5) im Abstand vor dem auf der Vorderseite des Substrats ausgebildeten Streifenleiter (6) der breitseitig verkoppelten Streifenleiter (6, 7) endet und durch eine Durchverbindung (11) mit dem rückseitigen Streifenleiter (7) der breitseitig verkoppelten Streifenleiter (6, 7) galvanisch verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19858470 | 1998-12-17 | ||
DE19858470A DE19858470A1 (de) | 1998-12-17 | 1998-12-17 | Richtkoppler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1014472A1 EP1014472A1 (de) | 2000-06-28 |
EP1014472B1 true EP1014472B1 (de) | 2004-04-07 |
Family
ID=7891557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99123509A Expired - Lifetime EP1014472B1 (de) | 1998-12-17 | 1999-11-25 | Richtkoppler |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1014472B1 (de) |
DE (2) | DE19858470A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005016054A1 (de) * | 2005-04-07 | 2006-10-12 | Kathrein-Werke Kg | Hochfrequenzkoppler oder Leistungsteiler, insbesondere schmalbandiger und/oder 3dB-Koppler oder Leistungsteiler |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE522404C2 (sv) * | 2001-11-30 | 2004-02-10 | Ericsson Telefon Ab L M | Riktkopplare |
US7245192B2 (en) * | 2003-12-08 | 2007-07-17 | Werlatone, Inc. | Coupler with edge and broadside coupled sections |
EP1837946B1 (de) | 2006-03-25 | 2012-07-11 | HÜTTINGER Elektronik GmbH + Co. KG | Richtkoppler |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516024A (en) * | 1968-12-30 | 1970-06-02 | Texas Instruments Inc | Interdigitated strip line coupler |
JPS61184901A (ja) * | 1985-02-12 | 1986-08-18 | Mitsubishi Electric Corp | サスペンデツド線路形方向性結合器 |
US4967171A (en) * | 1987-08-07 | 1990-10-30 | Mitsubishi Danki Kabushiki Kaisha | Microwave integrated circuit |
US5006821A (en) * | 1989-09-14 | 1991-04-09 | Astec International, Ltd. | RF coupler having non-overlapping off-set coupling lines |
US5057798A (en) * | 1990-06-22 | 1991-10-15 | Hughes Aircraft Company | Space-saving two-sided microwave circuitry for hybrid circuits |
-
1998
- 1998-12-17 DE DE19858470A patent/DE19858470A1/de not_active Withdrawn
-
1999
- 1999-11-25 EP EP99123509A patent/EP1014472B1/de not_active Expired - Lifetime
- 1999-11-25 DE DE59909108T patent/DE59909108D1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005016054A1 (de) * | 2005-04-07 | 2006-10-12 | Kathrein-Werke Kg | Hochfrequenzkoppler oder Leistungsteiler, insbesondere schmalbandiger und/oder 3dB-Koppler oder Leistungsteiler |
Also Published As
Publication number | Publication date |
---|---|
DE19858470A1 (de) | 2000-06-21 |
DE59909108D1 (de) | 2004-05-13 |
EP1014472A1 (de) | 2000-06-28 |
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