GB667658A - Improvements in or relating to radio antenna arrangements - Google Patents
Improvements in or relating to radio antenna arrangementsInfo
- Publication number
- GB667658A GB667658A GB1027450A GB1027450A GB667658A GB 667658 A GB667658 A GB 667658A GB 1027450 A GB1027450 A GB 1027450A GB 1027450 A GB1027450 A GB 1027450A GB 667658 A GB667658 A GB 667658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerials
- horns
- extends
- screen
- dimension
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
667,658. Aerials. STANDARD TELEPHONES & CABLES, Ltd. April 26, 1950, No. 10274/50. Class 40 (vii). Relates to an aerial system for use at the terminal or repeater stations of a two-way radio link comprising two adjacent similarly directed aerials 1 and 4 coupled respectively to a transmitter 8 and receiver 12, in which the aerials comprise paraboloidal reflectors 2 and 5, associated with horns 3 and 6, the apertures of the reflectors and horns being substantially coplanar. According to the present invention, direct coupling between the radiator elements is reduced by a rectangular metallic screen 13 positioned in a plane perpendicularly mid-way between the aerials. One dimension of the screen extends a distance l of the order of several wavelengths in front of the aperture plane and extends in the reverse direction a distance of at least #/2 and the other dimension y extends equally on either side of a line joining the horns by an amount r equal to the radius of the reflector apertures u y=2r; suitable dimensions are given for operation at a wavelength of 6.3 cms. Alternatively the screen may be dimensioned so that coupling due to energy leakage over the edges parallel to the aerial directivity is neutralized by coupling due to energy leakage over the edge parallel to and in front of the aperture plane, the dimensions l and y being 6-10# and 3-5# respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027450A GB667658A (en) | 1950-04-26 | 1950-04-26 | Improvements in or relating to radio antenna arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027450A GB667658A (en) | 1950-04-26 | 1950-04-26 | Improvements in or relating to radio antenna arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB667658A true GB667658A (en) | 1952-03-05 |
Family
ID=9964828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1027450A Expired GB667658A (en) | 1950-04-26 | 1950-04-26 | Improvements in or relating to radio antenna arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB667658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2096670A1 (en) * | 1970-05-20 | 1972-02-25 | Thomson Csf |
-
1950
- 1950-04-26 GB GB1027450A patent/GB667658A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2096670A1 (en) * | 1970-05-20 | 1972-02-25 | Thomson Csf |
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