GB887572A - Improvements in or relating to microwave polariser arrangements - Google Patents
Improvements in or relating to microwave polariser arrangementsInfo
- Publication number
- GB887572A GB887572A GB91360A GB91360A GB887572A GB 887572 A GB887572 A GB 887572A GB 91360 A GB91360 A GB 91360A GB 91360 A GB91360 A GB 91360A GB 887572 A GB887572 A GB 887572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- waveguides
- rectangular
- polarization
- feeder
- 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
- 230000010287 polarization Effects 0.000 abstract 3
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000010363 phase shift Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/165—Auxiliary devices for rotating the plane of polarisation
- H01P1/17—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
887,572. Waveguides. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 16, 1960 [Jan. 11, 1960], No. 913/60. Class 40(8). Wave energy of any desired polarization is obtained by feeding the output of a generator through two mutually perpendicular, co-planar, rectangular waveguides to a common symmetrical waveguide and varying the relative phase of the energy in the two rectangular guides. In the embodiment of Fig. 3, the rectangular feeder waveguides 2, 3 are coupled to a common input 6 through an E-plane Y junction 7. One or both of the feeders 2, 3 are provided with variable phase-shifting means, e.g. 10, whereby the polarization of the waves in the output guide 1 may be varied from planar to circular through any degree of ellipticity. In a further embodiment (Fig. 5, not shown), the Y junction is replaced by a 3db. coupler. In the modification of Fig. 6, the two feeders 19, 21 are coupled at spaced points by two 3 db. couplers 14, 17 and a phase-shifter 18 variable through 180 degrees is arranged in the feeder 19 between the couplers. A further 'phase-shifter 20 in the same feeder causes a fixed phase shift of 90 degrees. With this arrangement, plane polarization in either of itwo perpendicular directions or waves rotating in either the right or left hand sense may be obtained. The output waveguide may be terminated at one end with a short-circuit and at the other with a horn comprising the primary radiator of a directional antenna.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB91360A GB887572A (en) | 1960-01-11 | 1960-01-11 | Improvements in or relating to microwave polariser arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB91360A GB887572A (en) | 1960-01-11 | 1960-01-11 | Improvements in or relating to microwave polariser arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB887572A true GB887572A (en) | 1962-01-17 |
Family
ID=9712710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB91360A Expired GB887572A (en) | 1960-01-11 | 1960-01-11 | Improvements in or relating to microwave polariser arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB887572A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987002186A1 (en) * | 1985-10-03 | 1987-04-09 | Hughes Aircraft Company | Non-reactive radial line power divider/combiner with integral mode filters |
WO1987002187A1 (en) * | 1985-10-03 | 1987-04-09 | Hughes Aircraft Company | Broadband, high isolation radial line power divider/combiner |
-
1960
- 1960-01-11 GB GB91360A patent/GB887572A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987002186A1 (en) * | 1985-10-03 | 1987-04-09 | Hughes Aircraft Company | Non-reactive radial line power divider/combiner with integral mode filters |
WO1987002187A1 (en) * | 1985-10-03 | 1987-04-09 | Hughes Aircraft Company | Broadband, high isolation radial line power divider/combiner |
US4812782A (en) * | 1985-10-03 | 1989-03-14 | Hughes Aircraft Company | Non-reactive radial line power divider/combiner with integral mode filters |
US4825175A (en) * | 1985-10-03 | 1989-04-25 | Hughes Aircraft Company | Broadband, high isolation radial line power divider/combiner |
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