GB693654A - Improvements in or relating to aerial systems - Google Patents

Improvements in or relating to aerial systems

Info

Publication number
GB693654A
GB693654A GB6822/51A GB682251A GB693654A GB 693654 A GB693654 A GB 693654A GB 6822/51 A GB6822/51 A GB 6822/51A GB 682251 A GB682251 A GB 682251A GB 693654 A GB693654 A GB 693654A
Authority
GB
United Kingdom
Prior art keywords
orifice
guide
conducting
waveguide
march
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
GB6822/51A
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.)
DENIS ERIC CRONIN
General Electric Co PLC
Original Assignee
DENIS ERIC CRONIN
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 DENIS ERIC CRONIN, General Electric Co PLC filed Critical DENIS ERIC CRONIN
Priority to GB6822/51A priority Critical patent/GB693654A/en
Priority to US277227A priority patent/US2742640A/en
Publication of GB693654A publication Critical patent/GB693654A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • 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
    • H01Q13/06—Waveguide mouths
    • H01Q13/065—Waveguide mouths provided with a flange or a choke

Abstract

693,654. Aerials. GENERAL ELECTRIC CO., Ltd., and CRONIN, D. E. March 14, 1952 [March 21, 1951], No. 6822/51. Class 40 (vii). An aerial comprises a wave-guide orifice which is flush with a conducting metal surface 9 and is surrounded by a gap 7 in the conducting surface of such a depth, for example a quarterwavelength, that a high impedance is presented between the orifice and the conducting surface. By this means coupling between the orifice and surface is reduced, thus preventing distortion of the directivity pattern of the aerial system by currents flowing in the metal conducting surface. The waveguide is preferably of circular section and radiates circularly-polarized radiation. The wave-guide orifice may be closed by a member forming a window across the waveguide and both the guide and the gap 7 may be filled with a solid dielectric material, e.g. polythene.
GB6822/51A 1951-03-21 1951-03-21 Improvements in or relating to aerial systems Expired GB693654A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6822/51A GB693654A (en) 1951-03-21 1951-03-21 Improvements in or relating to aerial systems
US277227A US2742640A (en) 1951-03-21 1952-03-18 Aerial systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6822/51A GB693654A (en) 1951-03-21 1951-03-21 Improvements in or relating to aerial systems

Publications (1)

Publication Number Publication Date
GB693654A true GB693654A (en) 1953-07-01

Family

ID=9821391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6822/51A Expired GB693654A (en) 1951-03-21 1951-03-21 Improvements in or relating to aerial systems

Country Status (2)

Country Link
US (1) US2742640A (en)
GB (1) GB693654A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096684A1 (en) * 1970-06-03 1972-02-25 Behe Roger

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212096A (en) * 1961-09-25 1965-10-12 Danver M Schuster Parabolic reflector horn feed with spillover correction
US3434146A (en) * 1966-08-03 1969-03-18 Us Army Low profile open-ended waveguide antenna with dielectric disc lens
USRE32485E (en) * 1967-05-25 1987-08-25 Andrew Corporation Wide-beam horn feed for parabolic antennas
US4516129A (en) * 1982-06-04 1985-05-07 Canadian Patents & Dev. Ltd. Waveguide with dielectric coated flange antenna feed
GB9011576D0 (en) * 1990-05-23 1990-11-21 Marconi Gec Ltd Microwave antennas
US10177457B1 (en) * 2016-04-28 2019-01-08 Waymo Llc Free-space matched waveguide flange

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322971A (en) * 1939-04-11 1943-06-29 Roosenstein Hans Otto Shielded antenna feeder lead or line
US2407068A (en) * 1942-09-15 1946-09-03 Gen Electric Wave transmitting system
BE465944A (en) * 1943-05-21
US2451876A (en) * 1943-06-05 1948-10-19 Winfield W Salisbury Radio-frequency joint
NL71369C (en) * 1945-06-19
US2549783A (en) * 1945-06-20 1951-04-24 Standard Telephones Cables Ltd Antenna
US2597143A (en) * 1945-08-02 1952-05-20 Us Navy Wave guide joint
US2584399A (en) * 1945-08-11 1952-02-05 William M Preston Rotatable wave guide joint
GB649944A (en) * 1948-04-12 1951-02-07 British Broadcasting Corp Improvements in and relating to radio aerials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096684A1 (en) * 1970-06-03 1972-02-25 Behe Roger

Also Published As

Publication number Publication date
US2742640A (en) 1956-04-17

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