FR2309122A5 - VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide - Google Patents

VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide

Info

Publication number
FR2309122A5
FR2309122A5 FR6923093A FR6923093A FR2309122A5 FR 2309122 A5 FR2309122 A5 FR 2309122A5 FR 6923093 A FR6923093 A FR 6923093A FR 6923093 A FR6923093 A FR 6923093A FR 2309122 A5 FR2309122 A5 FR 2309122A5
Authority
FR
France
Prior art keywords
slot
rectangular wave
vhf
radiation
wave guide
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
FR6923093A
Other languages
French (fr)
Inventor
Pierre Bonnaval
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR6923093A priority Critical patent/FR2309122A5/en
Application granted granted Critical
Publication of FR2309122A5 publication Critical patent/FR2309122A5/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
    • H01Q13/22—Longitudinal slot in boundary wall of waveguide or transmission line

Abstract

A directional slot is used in aerials for the very high frequency hands, providing a high efficiency beam width of less than 30 deg. and providing minimum phase distortion. One single slot (F) is used in a rectangular wave-guide which is fed in the te01 mode. It is terminated in a matched load, Phase distortion is corrected by including in the waveguide a suitable dielectric material whose thickeness varies along the guide length. The slot itself, set in the width, ie the greatest cross section dimensioned face, is uniform over part of its length and then has a discontinuity such that it curves laterally away from the centre line of the wall and then returns to it.
FR6923093A 1969-07-08 1969-07-08 VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide Expired FR2309122A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6923093A FR2309122A5 (en) 1969-07-08 1969-07-08 VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6923093A FR2309122A5 (en) 1969-07-08 1969-07-08 VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide

Publications (1)

Publication Number Publication Date
FR2309122A5 true FR2309122A5 (en) 1976-11-19

Family

ID=9037130

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6923093A Expired FR2309122A5 (en) 1969-07-08 1969-07-08 VHF directional slot aerial - provides thirty degree beam of radiation and has non-uniformly shaped single slot in rectangular wave guide

Country Status (1)

Country Link
FR (1) FR2309122A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537347A1 (en) * 1982-12-03 1984-06-08 Trt Telecom Radio Electr DOUBLE DIRECTIVE DIRECTIONAL ANTENNA FOR MICROFREQUENCIES WITH A THIN STRUCTURE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537347A1 (en) * 1982-12-03 1984-06-08 Trt Telecom Radio Electr DOUBLE DIRECTIVE DIRECTIONAL ANTENNA FOR MICROFREQUENCIES WITH A THIN STRUCTURE
EP0110479A1 (en) * 1982-12-03 1984-06-13 Telecommunications Radioelectriques Et Telephoniques T.R.T. Directive thin double antenna for microwaves

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Legal Events

Date Code Title Description
ST Notification of lapse