GB696659A - Improvements in or relating to micro-wave aerial arrays - Google Patents

Improvements in or relating to micro-wave aerial arrays

Info

Publication number
GB696659A
GB696659A GB785851A GB785851A GB696659A GB 696659 A GB696659 A GB 696659A GB 785851 A GB785851 A GB 785851A GB 785851 A GB785851 A GB 785851A GB 696659 A GB696659 A GB 696659A
Authority
GB
United Kingdom
Prior art keywords
guide
slot
slots
aerial
conductances
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
GB785851A
Inventor
John Rodgers
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB785851A priority Critical patent/GB696659A/en
Publication of GB696659A publication Critical patent/GB696659A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

696,659. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 20, 1951 [April 4, 1951], No. 7858/51. Class 40 (vii). In a slotted-waveguide aerial comprising a substantially linear array of slots of which a small number have large conductances as compared with the remainder, an iris or diaphragm is arranged across the guide in front of each slot of large conductance to cancel out the reactive component of the impedance introduced thereby, and thus reduce the standing-wave ratio in the guide. As shown in the Figure, the aerial comprises a waveguide having a large number of shunt-coupled slots cut in its broad face. In order to obtain a desired polar diagram, for example a fan beam, the four central slots are more strongly coupled to the wave-guide and thus have larger conductances than the remaining slots. In front of each of these, looking from the feed end, is arranged a slot D on the same side of the guide as the corresponding slot, a conducting diaphragm being inserted into each slot and then soldered or brazed into position. In the preferred embodiment the array is arranged along the focal line of a verticallyarranged cylindrical parabolic reflector so that the aerial produces a thin vertical fan beam.
GB785851A 1951-04-04 1951-04-04 Improvements in or relating to micro-wave aerial arrays Expired GB696659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB785851A GB696659A (en) 1951-04-04 1951-04-04 Improvements in or relating to micro-wave aerial arrays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB785851A GB696659A (en) 1951-04-04 1951-04-04 Improvements in or relating to micro-wave aerial arrays

Publications (1)

Publication Number Publication Date
GB696659A true GB696659A (en) 1953-09-02

Family

ID=9841146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB785851A Expired GB696659A (en) 1951-04-04 1951-04-04 Improvements in or relating to micro-wave aerial arrays

Country Status (1)

Country Link
GB (1) GB696659A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971193A (en) * 1957-06-21 1961-02-07 Rca Corp Multiple slot antenna having radiating termination
DE1222998B (en) * 1956-09-26 1966-08-18 Marconi Co Ltd Antenna arrangement for measuring the speed and drift of aircraft
DE1616578B1 (en) * 1962-08-23 1970-09-03 Telefunken Patent Slot radiator for electromagnetic waves
GB2300308A (en) * 1995-04-19 1996-10-30 Andrew Corp Radiating waveguide and communication system
US6480163B1 (en) 1999-12-16 2002-11-12 Andrew Corporation Radiating coaxial cable having helically diposed slots and radio communication system using same
CN109687104A (en) * 2018-12-20 2019-04-26 中国科学院上海微系统与信息技术研究所 Narrow pitch angle list slot antenna of a kind of width horizontal angle and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222998B (en) * 1956-09-26 1966-08-18 Marconi Co Ltd Antenna arrangement for measuring the speed and drift of aircraft
US2971193A (en) * 1957-06-21 1961-02-07 Rca Corp Multiple slot antenna having radiating termination
DE1616578B1 (en) * 1962-08-23 1970-09-03 Telefunken Patent Slot radiator for electromagnetic waves
GB2300308A (en) * 1995-04-19 1996-10-30 Andrew Corp Radiating waveguide and communication system
US5717411A (en) * 1995-04-19 1998-02-10 Andrew Corporation Radiating waveguide and radio communication system using same
GB2300308B (en) * 1995-04-19 2000-01-19 Andrew Corp A radiating waveguide and a communication system using same
US6480163B1 (en) 1999-12-16 2002-11-12 Andrew Corporation Radiating coaxial cable having helically diposed slots and radio communication system using same
CN109687104A (en) * 2018-12-20 2019-04-26 中国科学院上海微系统与信息技术研究所 Narrow pitch angle list slot antenna of a kind of width horizontal angle and preparation method thereof
CN109687104B (en) * 2018-12-20 2024-03-01 中国科学院上海微系统与信息技术研究所 Wide-horizontal angle and narrow-pitch angle single-slit antenna and manufacturing method thereof

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