GB810418A - Improvements in or relating to very short wave directional aerial arrangements - Google Patents

Improvements in or relating to very short wave directional aerial arrangements

Info

Publication number
GB810418A
GB810418A GB34526/57A GB3452657A GB810418A GB 810418 A GB810418 A GB 810418A GB 34526/57 A GB34526/57 A GB 34526/57A GB 3452657 A GB3452657 A GB 3452657A GB 810418 A GB810418 A GB 810418A
Authority
GB
United Kingdom
Prior art keywords
reflector
primary elements
decoupling
guide
elements
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
Application number
GB34526/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Publication of GB810418A publication Critical patent/GB810418A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

810,418. Aerials. TELEFUNKEN G.m.b.H. Nov. 5, 1957 [Nov. 8, 1956], No. 34526/57. Class 40 (7). An aerial for use at very high frequencies comprises two closely mounted primary elements, one for transmission and one for reception, a beam forming element and a means for decoupling the energy paths to these primary elements. In one embodiment the primary elements are horns 2 and 3 (see Fig. 1) which are connected to waveguides 4 and 5 and which are directed towards a reflector 1. The guide 4 is used for transmission and the guide 5 for reception. An extension 6 of the guides' common wall forms a means for decoupling the two energy paths and consists of a conducting plate, the plate being, for example, rectangular and of dimensions of the order of the working wavelength. The primary elements are therefore associated with different parts of the reflector and so these two parts need not be of the same size. Other embodiments, Figs. 3 and 4 (not shown), illustrate aerials wherein the feeder guides pass through the reflector to the.primary elements; the extended common wall again providing the decoupling and in the case of dipole primary elements also forming the mounting means for these elements. In order to avoid radiation from the guide walls to the reflector in these latter embodiments a covering of a damping material may be affixed to the guide walls where they pass through the reflector.
GB34526/57A 1956-11-08 1957-11-05 Improvements in or relating to very short wave directional aerial arrangements Expired GB810418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE810418X 1956-11-08

Publications (1)

Publication Number Publication Date
GB810418A true GB810418A (en) 1959-03-18

Family

ID=6724704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34526/57A Expired GB810418A (en) 1956-11-08 1957-11-05 Improvements in or relating to very short wave directional aerial arrangements

Country Status (2)

Country Link
DE (1) DE1049934B (en)
GB (1) GB810418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214438A (en) * 1990-05-11 1993-05-25 Westinghouse Electric Corp. Millimeter wave and infrared sensor in a common receiving aperture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102323C2 (en) * 1981-01-24 1984-06-07 Metalltechnik Schmidt GmbH & Co, 7024 Filderstadt Helical antenna group

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214438A (en) * 1990-05-11 1993-05-25 Westinghouse Electric Corp. Millimeter wave and infrared sensor in a common receiving aperture

Also Published As

Publication number Publication date
DE1049934B (en)

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