GB1261919A - Loop antenna - Google Patents

Loop antenna

Info

Publication number
GB1261919A
GB1261919A GB2165368A GB2165368A GB1261919A GB 1261919 A GB1261919 A GB 1261919A GB 2165368 A GB2165368 A GB 2165368A GB 2165368 A GB2165368 A GB 2165368A GB 1261919 A GB1261919 A GB 1261919A
Authority
GB
United Kingdom
Prior art keywords
loop
reflectors
shaft
cut
wire mesh
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
GB2165368A
Inventor
Shiu-Chang Loh
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.)
Individual
Original Assignee
Individual
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
Priority to BE790848D priority Critical patent/BE790848Q/en
Application filed by Individual filed Critical Individual
Priority to GB2165368A priority patent/GB1261919A/en
Publication of GB1261919A publication Critical patent/GB1261919A/en
Priority to MY159/73A priority patent/MY7300159A/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
    • H01Q19/185—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 wherein the surfaces are plane

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

1,261,919. Aerials. SHIU-CHANG LOH. 2 May, 1969 [7 May, 1968], No. 21653/68. Heading H4A. A loop aerial element of one or more turns is associated with two plane conductive reflectors, one of which is smaller than the other, said reflectors being axially disposed on opposite sides of the loop, and parallel to it. In use, the loop element is arranged in a vertical plane directed towards a radio station from or to which signals are to be sent. As described, a loop 1 consists of a single turn of copper tubing formed into a circle of perimeter approximately equal to # (= the normal operating wavelength) which is supported by an insulating strut la upon an insulating shaft 2. A circular reflector 3 is cut from copper wire mesh to a diameter greater than #, and is adjustably mounted upon the shaft 2 behind the loop 1. A smaller circular member 4 is also cut from copper wire mesh (its diameter being greater than #/4), and is adjustably mounted upon the shaft 2 in front of the loop 1. The loop aerial element may be of other than circular shape, for example, square or rectangular (Figs. 2, 3, not shown). The spacing between the reflectors is stated to be normally about #, but to be adjustable in dependence upon the radiation resistance required for a particular application.
GB2165368A 1968-05-07 1968-05-07 Loop antenna Expired GB1261919A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE790848D BE790848Q (en) 1968-05-07 FRAME
GB2165368A GB1261919A (en) 1968-05-07 1968-05-07 Loop antenna
MY159/73A MY7300159A (en) 1968-05-07 1973-12-30 Loop antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2165368A GB1261919A (en) 1968-05-07 1968-05-07 Loop antenna

Publications (1)

Publication Number Publication Date
GB1261919A true GB1261919A (en) 1972-01-26

Family

ID=10166553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2165368A Expired GB1261919A (en) 1968-05-07 1968-05-07 Loop antenna

Country Status (3)

Country Link
BE (1) BE790848Q (en)
GB (1) GB1261919A (en)
MY (1) MY7300159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112216962A (en) * 2020-08-28 2021-01-12 西安电子科技大学 Frequency-adjustable grounding loop antenna working mode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112216962A (en) * 2020-08-28 2021-01-12 西安电子科技大学 Frequency-adjustable grounding loop antenna working mode

Also Published As

Publication number Publication date
BE790848Q (en) 1973-02-15
MY7300159A (en) 1973-12-31

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