GB578018A - Improvements in or relating to broadcast antennae and especially antennae for centimetre waves - Google Patents

Improvements in or relating to broadcast antennae and especially antennae for centimetre waves

Info

Publication number
GB578018A
GB578018A GB561343A GB561343A GB578018A GB 578018 A GB578018 A GB 578018A GB 561343 A GB561343 A GB 561343A GB 561343 A GB561343 A GB 561343A GB 578018 A GB578018 A GB 578018A
Authority
GB
United Kingdom
Prior art keywords
reflector
antenna
antennae
broadcast
paraboloidal
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
GB561343A
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Priority to GB561343A priority Critical patent/GB578018A/en
Publication of GB578018A publication Critical patent/GB578018A/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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • 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
    • H01Q19/102—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 of convex toroïdal shape

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

578,018. Wireless aerials. LAWSON, D. I., WEIGHTON, D., and PYE, Ltd. April 8, 1943, No. 5613. [Class 40 (v)] A broadcast radiator suitable for centimetre waves comprises a pair of reflecting surfaces of revolution A, B mounted coaxially one above the other with the energized antenna D located in one of them, the arrangement being such that the waves emitted by the antenna D are reflected by the reflector A in which it is situated to the reflector B, and thence outwardly in all directions as a substantially horizontal or a downwardly-inclined beam. Preferably, the antenna is in the lower reflector, which may be situated at the base of a mast carrying the upper reflector, or may be carried on the mast adjacent the upper reflector. As shown in Fig. 1, the reflector A is paraboloidal, the reflector B conical, and the antenna D is an axial dipole. Fig. 3 shows a modification in which the reflector A is a paraboloid truncated at the lateral sectal plane, the antenna D being a quarter-wave dipole. In a further modification, the reflector containing the antenna is conical or a truncated cone, and the upper reflector is paraboloidal.
GB561343A 1943-04-08 1943-04-08 Improvements in or relating to broadcast antennae and especially antennae for centimetre waves Expired GB578018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB561343A GB578018A (en) 1943-04-08 1943-04-08 Improvements in or relating to broadcast antennae and especially antennae for centimetre waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB561343A GB578018A (en) 1943-04-08 1943-04-08 Improvements in or relating to broadcast antennae and especially antennae for centimetre waves

Publications (1)

Publication Number Publication Date
GB578018A true GB578018A (en) 1946-06-12

Family

ID=9799385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB561343A Expired GB578018A (en) 1943-04-08 1943-04-08 Improvements in or relating to broadcast antennae and especially antennae for centimetre waves

Country Status (1)

Country Link
GB (1) GB578018A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155245A (en) * 1984-02-29 1985-09-18 Standard Telephones Cables Ltd Antenna systems
US4982198A (en) * 1988-05-16 1991-01-01 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence High performance dipole feed for reflector antennas
US6011521A (en) * 1996-03-04 2000-01-04 Andrew Corporation Broadband omnidirectional microwave parabolic dish-shaped cone antenna
EP1939981A1 (en) * 2006-12-26 2008-07-02 Samsung Electronics Co., Ltd. Antenna apparatus
CN114475911A (en) * 2022-01-26 2022-05-13 中船黄埔文冲船舶有限公司 Reflector mast

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155245A (en) * 1984-02-29 1985-09-18 Standard Telephones Cables Ltd Antenna systems
US4982198A (en) * 1988-05-16 1991-01-01 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence High performance dipole feed for reflector antennas
US6011521A (en) * 1996-03-04 2000-01-04 Andrew Corporation Broadband omnidirectional microwave parabolic dish-shaped cone antenna
EP1939981A1 (en) * 2006-12-26 2008-07-02 Samsung Electronics Co., Ltd. Antenna apparatus
US7812778B2 (en) 2006-12-26 2010-10-12 Samsung Electronics Co., Ltd Antenna apparatus
CN114475911A (en) * 2022-01-26 2022-05-13 中船黄埔文冲船舶有限公司 Reflector mast

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