GB570038A - Improvements in aerial feeders - Google Patents

Improvements in aerial feeders

Info

Publication number
GB570038A
GB570038A GB24842A GB24842A GB570038A GB 570038 A GB570038 A GB 570038A GB 24842 A GB24842 A GB 24842A GB 24842 A GB24842 A GB 24842A GB 570038 A GB570038 A GB 570038A
Authority
GB
United Kingdom
Prior art keywords
guide
wave
open end
reflector
radiator
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
GB24842A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB24842A priority Critical patent/GB570038A/en
Publication of GB570038A publication Critical patent/GB570038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/24—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave constituted by a dielectric or ferromagnetic rod or pipe
    • 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
    • H01Q19/134—Rear-feeds; Splash plate feeds

Abstract

570,038. Wave guides ; directive wireless systems. GENERAL ELECTRIC CO., Ltd., and CLAYTON. R. J. Jan. 7, 1942, No. 248. [Class 40 (v)] Short-wave energy is fed from an oscillator to a directive radiator and reflector by a wave guide of which the dielectric medium has a permittivity much greater than that of air. As shown the straight cylindrical guide 2 passes through the back of a parabolic reflector 1, and an aerial consisting of a metal rod 3 is passed through a diametral hole near the free end of the guide. The guide may, if desired, be provided with a metal sheath, and the dielectric permittivity may be as high as 80. This permits the use of a guide of small diameter, e.g. the diameter may be 1.5 cm. for a wave-length of 15 cm. In Fig. 2, the open end of the wave guide constitutes the radiator, and a plate 5 placed in front of the guide reflects the radiation into the reflector 1. One or more enlarged transition sections 4, a quarter-wave long, may be inserted at the open end of the guide, and filled with media whose permittivities decrease towards the open end.
GB24842A 1942-01-07 1942-01-07 Improvements in aerial feeders Expired GB570038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24842A GB570038A (en) 1942-01-07 1942-01-07 Improvements in aerial feeders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24842A GB570038A (en) 1942-01-07 1942-01-07 Improvements in aerial feeders

Publications (1)

Publication Number Publication Date
GB570038A true GB570038A (en) 1945-06-20

Family

ID=9701037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24842A Expired GB570038A (en) 1942-01-07 1942-01-07 Improvements in aerial feeders

Country Status (1)

Country Link
GB (1) GB570038A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617029A (en) * 1948-06-29 1952-11-04 Kinsey L Plummer Nutating antenna
DE1019715B (en) * 1953-07-16 1957-11-21 Deutsche Elektronik Gmbh Arrangement for adapting a hollow pipe for ultra-short electromagnetic waves to a medium with significantly different dielectric constants
DE974237C (en) * 1953-06-28 1960-10-27 Elektronik G M B H Deutsche Device for the heat treatment of organic substances in an electromagnetic radiation field
US3435458A (en) * 1965-12-07 1969-03-25 Radiation Inc Stepped dielectric constant end fire antenna
GB2185860A (en) * 1985-01-16 1987-07-29 Junkosha Co Ltd Dielectric waveguide
GB2185861A (en) * 1985-01-16 1987-07-29 Junkosha Co Ltd Dielectric waveguide

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617029A (en) * 1948-06-29 1952-11-04 Kinsey L Plummer Nutating antenna
DE974237C (en) * 1953-06-28 1960-10-27 Elektronik G M B H Deutsche Device for the heat treatment of organic substances in an electromagnetic radiation field
DE1019715B (en) * 1953-07-16 1957-11-21 Deutsche Elektronik Gmbh Arrangement for adapting a hollow pipe for ultra-short electromagnetic waves to a medium with significantly different dielectric constants
US3435458A (en) * 1965-12-07 1969-03-25 Radiation Inc Stepped dielectric constant end fire antenna
GB2185860A (en) * 1985-01-16 1987-07-29 Junkosha Co Ltd Dielectric waveguide
GB2185861A (en) * 1985-01-16 1987-07-29 Junkosha Co Ltd Dielectric waveguide
US4825221A (en) * 1985-01-16 1989-04-25 Junkosha Co., Ltd. Directly emitting dielectric transmission line
GB2185861B (en) * 1985-01-16 1989-11-01 Junkosha Co Ltd Dielectric waveguide

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