GB908122A - Improvements relating to electrical coupling arrangements - Google Patents
Improvements relating to electrical coupling arrangementsInfo
- Publication number
- GB908122A GB908122A GB3381858A GB3381858A GB908122A GB 908122 A GB908122 A GB 908122A GB 3381858 A GB3381858 A GB 3381858A GB 3381858 A GB3381858 A GB 3381858A GB 908122 A GB908122 A GB 908122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring circuit
- arrangement
- gyrator
- arms
- secondary loop
- 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
Links
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/38—Circulators
- H01P1/397—Circulators using non- reciprocal phase shifters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
908,122. Duplexers and isolators. COMPAGNIE FRANCAISE THOMSON - HOUSTON. Oct. 22, 1958 [Oct. 22, 1957], No. 33818/58. Class 40 (8). [Also in Group XL (c)] An electrical coupling arrangement comprises a ring circuit 1 coupled into one transmission line 4 by a first directional coupler 2 and coupled into another transmission line 5 by a second directional coupler 3, the ring circuit including a gyrator 8 having four arms a, b, c, d, two adjacent arms a, b of Fig. 3 and a, d of Fig. 5 being connected in the ring circuit 1 and either the other two arms c and d of Fig. 3 being connected to form a secondary loop 9 in the ring circuit or at least one arm b, c of Fig. 5, being connected to power absorption devices 13 and 14, in such manner that the ring circuit is operative to pass energy in one direction but not in the reverse direction. In the arrangement of Fig. 3, the path length of the ring circuit 1 without the secondary loop 9 is made an odd number of half wavelengths and with the loop 9 an integral number of wavelengths. A non-reflecting device may be connected to the end IV of the line 5. A radar transmitter can be connected to I, an aerial to II and a receiver to III and the arrangement acts on a duplexer. In the arrangement of Fig. 3 the secondary loop 9 can be omitted and the gyrator 8 replaced by the gyrator 10 shown in Fig. 4 in which an absorption device 12 is connected to the arm c. In the circuit shown in Fig. 5, absorption devices 15 and 16 are connected to the ends III and IV of the line 5 and the arrangement acts as an isolator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR749948A FR72405E (en) | 1957-10-22 | 1957-10-22 | New duplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB908122A true GB908122A (en) | 1962-10-17 |
Family
ID=8704948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3381858A Expired GB908122A (en) | 1957-10-22 | 1958-10-22 | Improvements relating to electrical coupling arrangements |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR72405E (en) |
| GB (1) | GB908122A (en) |
-
1957
- 1957-10-22 FR FR749948A patent/FR72405E/en not_active Expired
-
1958
- 1958-10-22 GB GB3381858A patent/GB908122A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR72405E (en) | 1960-04-13 |
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