GB867356A - End-fire aerials - Google Patents

End-fire aerials

Info

Publication number
GB867356A
GB867356A GB1923158A GB1923158A GB867356A GB 867356 A GB867356 A GB 867356A GB 1923158 A GB1923158 A GB 1923158A GB 1923158 A GB1923158 A GB 1923158A GB 867356 A GB867356 A GB 867356A
Authority
GB
United Kingdom
Prior art keywords
dielectric
aerial
tube
feeder
mode
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
GB1923158A
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
Application filed by Individual filed Critical Individual
Priority to GB1923158A priority Critical patent/GB867356A/en
Publication of GB867356A publication Critical patent/GB867356A/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

Landscapes

  • Waveguide Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

867,356. Aerials. HERSCH, W. June 16, 1958, No. 19231/58. Class 40(7) An end-fire aerial system comprises a radiating element consisting of a metallic rod or tube coated externally with dielectric material and having a wave launching or collecting means associated with one end thereof. As shown in Fig. 1 a metal tube 1 is provided with a dielectric coating 2 and the launching means consists of dipole elements 3 supported in insulating bushings 4 and coupled to feeder 7. A reflecting piston 6 prevents energy from travelling along the inside of the tube 1 and reflector elements 5 prevent back radiation. Instead of a wire feeder 7 an extension of the tube 1 can be used as a circular waveguide feeder. In another embodiment also using a waveguide feeder 12 the aerial consists of a metal rod 9 provided with a dielectric coating. A shaped mode convertor 11 consisting of an extension of the dielectric rod coating converts from the H 01 mode in the circular guide 12 to the HE 11 mode along the aerial. Discontinuites, such as the grooves 15, may be formed in the aerial dielectric to increase the gain. The same effect may be achieved by tapering the dielectric material or reducing its thickness in steps.
GB1923158A 1958-06-16 1958-06-16 End-fire aerials Expired GB867356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1923158A GB867356A (en) 1958-06-16 1958-06-16 End-fire aerials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1923158A GB867356A (en) 1958-06-16 1958-06-16 End-fire aerials

Publications (1)

Publication Number Publication Date
GB867356A true GB867356A (en) 1961-05-03

Family

ID=10125899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1923158A Expired GB867356A (en) 1958-06-16 1958-06-16 End-fire aerials

Country Status (1)

Country Link
GB (1) GB867356A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392396A (en) * 1964-12-28 1968-07-09 Hermann W. Ehrenspeck Tunable endfire surface wave antenna
US3798652A (en) * 1972-09-11 1974-03-19 Gen Electric Pitot tube dielectric antenna system
US4468672A (en) * 1981-10-28 1984-08-28 Bell Telephone Laboratories, Incorporated Wide bandwidth hybrid mode feeds
US4482899A (en) * 1981-10-28 1984-11-13 At&T Bell Laboratories Wide bandwidth hybrid mode feeds
US5248987A (en) * 1991-12-31 1993-09-28 Massachusetts Institute Of Technology Widebeam antenna

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392396A (en) * 1964-12-28 1968-07-09 Hermann W. Ehrenspeck Tunable endfire surface wave antenna
US3798652A (en) * 1972-09-11 1974-03-19 Gen Electric Pitot tube dielectric antenna system
US4468672A (en) * 1981-10-28 1984-08-28 Bell Telephone Laboratories, Incorporated Wide bandwidth hybrid mode feeds
US4482899A (en) * 1981-10-28 1984-11-13 At&T Bell Laboratories Wide bandwidth hybrid mode feeds
US5248987A (en) * 1991-12-31 1993-09-28 Massachusetts Institute Of Technology Widebeam antenna

Similar Documents

Publication Publication Date Title
US3184747A (en) Coaxial fed helical antenna with director disk between feed and helix producing endfire radiation towards the disk
GB647890A (en) Directional antenna systems
GB867356A (en) End-fire aerials
GB1102039A (en) Improvements in or relating to variable directivity aerials
US2921309A (en) Surface wave omnidirectional antenna
GB613508A (en) Unidirectional antenna system
Shoamanesh et al. Characteristics of circular loop antennas above a lossless ground plane
GB1163156A (en) Improvements in or relating to Paraboloidal Antennae with Counter-Reflectors.
GB755011A (en) Improvements relating to radio beam antenna arrangements
GB1465659A (en) Wide-band spiral antenna
FR1259139A (en) Scanning horn and reflector antenna
US2485920A (en) Antenna
ES215856A1 (en) Improvements in or relating to directional aerial systems
US3611391A (en) Cassegrain antenna with dielectric guiding structure
GB570038A (en) Improvements in aerial feeders
GB983458A (en) A surface and leaky wave antenna
US2403909A (en) Broadcast antenna
US3122745A (en) Reflection antenna employing multiple director elements and multiple reflection of energy to effect increased gain
GB901005A (en) Improvements in or relating to a parabolic reflector antenna for waves polarized in two directions
GB860521A (en) Improvements in and relating to electrical systems
GB1123125A (en) A radar antenna consisting of a linear source the directivity of which in the place perpendicular to the line, is obtained by dielectric structure
GB1531925A (en) Helical antennas
GB1040456A (en) Improvements in directive antennas
GB600633A (en) Directive antenna
GB1099429A (en) Improvements in or relating to microwave aerial assemblies