GB835575A - An improved multiplexing and filtering device for the u.h.f. band - Google Patents
An improved multiplexing and filtering device for the u.h.f. bandInfo
- Publication number
- GB835575A GB835575A GB38287/56A GB3828756A GB835575A GB 835575 A GB835575 A GB 835575A GB 38287/56 A GB38287/56 A GB 38287/56A GB 3828756 A GB3828756 A GB 3828756A GB 835575 A GB835575 A GB 835575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- waveguide
- transmitted
- coupled
- mode filter
- dec
- 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
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/025—Multimode horn antennas; Horns using higher mode of propagation
- H01Q13/0258—Orthomode horns
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
835,575. Waveguide circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 14, 1956 [Dec. 21, 1955], No. 38287/56. Addition to 769,668. Class 40 (8). [Also in Group XL (c)] In a U.H.F. multiplex transmit-receive arrangement isolation of the different frequency bands in the transmitted and received waves is achieved by means of the multiplexers described in the parent Specification whilst separation of the transmitted and received waves, which are orthogonally polarized, is achieved by means of a mode filter. A horn radiator 10, Fig. 1, used for both transmission and reception, is connected to a symmetrical waveguide 8 in which a number of parallel conductive vanes 11, forming a mode filter, are arranged. These allow the passage of the received, horizontally polarized wave to a multiplexer 13 whilst forming a short-circuit for the transmitted, vertically polarized wave. The transmitted wave is coupled from a rectangular waveguide 7 into the waveguide 8 by means of a vertical probe 9. A transmission multiplexer 3 is coupled to the waveguide 7. Both multiplexers consist of two or more cavities each tuned to a different frequency, each connected on the one hand to a separate transmitter or receiver and coupled on the other hand by apertures to a common transmitting or receiving wide-band waveguide. The latter may be a ridged waveguide and may be connected to the waveguide 8 by means of probe couplings and a coaxial line (Fig. 4, not shown). In the modification of Fig. 5, the waveguides 7 and 8 are provided with double ridges in the form of horizontal, conductive laminae 23, 24 which are spaced apart by a small gap in the region of the coupling aperture 22 and recede from each other on either side of the aperture. The ridges also act as a mode filter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU835575X | 1955-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB835575A true GB835575A (en) | 1960-05-25 |
Family
ID=3761498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38287/56A Expired GB835575A (en) | 1955-12-21 | 1956-12-14 | An improved multiplexing and filtering device for the u.h.f. band |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB835575A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0073511A2 (en) * | 1981-08-31 | 1983-03-09 | Nec Corporation | Satellite broadcasting receiver |
EP0122391A1 (en) * | 1983-02-17 | 1984-10-24 | Siemens Aktiengesellschaft | Broadband microwave radiator |
EP0154692A1 (en) * | 1984-02-24 | 1985-09-18 | ANT Nachrichtentechnik GmbH | Polarisation-selective circuit for two frequency bands |
WO2015185150A1 (en) * | 2014-06-06 | 2015-12-10 | Telefonaktiebolaget L M Ericsson (Publ) | A combined two dual carrier radio link |
EP3308423A4 (en) * | 2015-06-12 | 2019-02-20 | ZTE Corporation | Pluggable receiver splitter for two-transmitter two-receiver microwave digital radios |
CN113224533A (en) * | 2021-04-23 | 2021-08-06 | 华南理工大学 | Coaxial waveguide filter antenna with adjustable frequency |
EP3910729A1 (en) * | 2020-05-15 | 2021-11-17 | Thales | Broadband orthomode transducer |
-
1956
- 1956-12-14 GB GB38287/56A patent/GB835575A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0073511A2 (en) * | 1981-08-31 | 1983-03-09 | Nec Corporation | Satellite broadcasting receiver |
EP0073511A3 (en) * | 1981-08-31 | 1985-05-22 | Nec Corporation | Satellite broadcasting receiver |
EP0122391A1 (en) * | 1983-02-17 | 1984-10-24 | Siemens Aktiengesellschaft | Broadband microwave radiator |
EP0154692A1 (en) * | 1984-02-24 | 1985-09-18 | ANT Nachrichtentechnik GmbH | Polarisation-selective circuit for two frequency bands |
WO2015185150A1 (en) * | 2014-06-06 | 2015-12-10 | Telefonaktiebolaget L M Ericsson (Publ) | A combined two dual carrier radio link |
EP3308423A4 (en) * | 2015-06-12 | 2019-02-20 | ZTE Corporation | Pluggable receiver splitter for two-transmitter two-receiver microwave digital radios |
US10374275B2 (en) | 2015-06-12 | 2019-08-06 | Zte Corporation | Pluggable receiver splitter for two-transmitter two-receiver microwave digital radios |
EP3910729A1 (en) * | 2020-05-15 | 2021-11-17 | Thales | Broadband orthomode transducer |
FR3110290A1 (en) * | 2020-05-15 | 2021-11-19 | Thales | Wideband orthomode transducer |
US11476553B2 (en) | 2020-05-15 | 2022-10-18 | Thales | Wideband orthomode transducer |
CN113224533A (en) * | 2021-04-23 | 2021-08-06 | 华南理工大学 | Coaxial waveguide filter antenna with adjustable frequency |
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