GB515795A - Improvements in or relating to radio antennae - Google Patents

Improvements in or relating to radio antennae

Info

Publication number
GB515795A
GB515795A GB17440/38A GB1744038A GB515795A GB 515795 A GB515795 A GB 515795A GB 17440/38 A GB17440/38 A GB 17440/38A GB 1744038 A GB1744038 A GB 1744038A GB 515795 A GB515795 A GB 515795A
Authority
GB
United Kingdom
Prior art keywords
cone
june
aerial
relating
line
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
GB17440/38A
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
Publication of GB515795A publication Critical patent/GB515795A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines

Landscapes

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

Abstract

515,795. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 13, 1938, No. 17440. Convention date, June- 12, 1937. [Class 40 (v)] A short-wave aerial suitable for the transmission or reception of a wide band of frequencies, as in television, is made in the form of a cone, as shown at 4 in Fig. 2, or at 1 and 2 in the double arrangement shown in Fig. 1. In the latter case the centre conductor of the coaxial transmission line TL is connected to the upper cone, and the outer conductor to the lower cone. Or a two-wire feed-line may be used, the two wires being connected to the upper and lower cones respectively. The arrangement gives a figure-of-eight directional response, as drawn at P. For given dimensions the impedance of the aerial is stated to be substantially a pure resistance for wavelengths ranging from 1.36 to 1.55 metres. Reference has been directed by the Comptroller to Specification 469,366.
GB17440/38A 1937-06-12 1938-06-13 Improvements in or relating to radio antennae Expired GB515795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US147817A US2175252A (en) 1937-06-12 1937-06-12 Short wave antenna

Publications (1)

Publication Number Publication Date
GB515795A true GB515795A (en) 1939-12-14

Family

ID=22523017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17440/38A Expired GB515795A (en) 1937-06-12 1938-06-13 Improvements in or relating to radio antennae

Country Status (2)

Country Link
US (1) US2175252A (en)
GB (1) GB515795A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204738A (en) * 1987-05-05 1988-11-16 Bernard John Charles Spencer Wideband radio aerial
GB2302990A (en) * 1995-07-04 1997-02-05 Marconi Gec Ltd Dipole antenna
EP2515378A2 (en) 2011-04-20 2012-10-24 EADS Deutschland GmbH Antenna system with two rotation-symmetric, coaxial antennas

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556201A (en) * 1944-01-15 1951-06-12 Geotronics Corp Pulse-echo direction and ranging device
US2532551A (en) * 1945-02-19 1950-12-05 George A Jarvis Biconical electromagnetic horn antenna
US2472213A (en) * 1945-10-03 1949-06-07 George E Hulstede Antenna system
US2508438A (en) * 1945-10-16 1950-05-23 Douglas W Wilson Broad band antenna
US2602894A (en) * 1946-02-19 1952-07-08 Wilmer L Barrow Biconical electromagnetic horn
US2566491A (en) * 1946-03-15 1951-09-04 Belmont Radio Corp Antenna construction
US2602895A (en) * 1946-04-25 1952-07-08 Sperry Corp Ultrahigh-frequency antenna apparatus
US2445336A (en) * 1946-06-05 1948-07-20 Us Sec War Antenna mounting
US2543130A (en) * 1946-07-03 1951-02-27 Bell Telephone Labor Inc Reflecting system
US2541107A (en) * 1947-04-12 1951-02-13 Farnsworth Res Corp Low-clearance antenna
US2533900A (en) * 1949-09-09 1950-12-12 Collins Radio Co Antenna
US2802209A (en) * 1952-05-29 1957-08-06 Bell Telephone Labor Inc Antennas employing laminated conductors
US2908863A (en) * 1955-02-18 1959-10-13 Robert J Neff Electronic locator
US3054106A (en) * 1959-01-02 1962-09-11 Itt Directional beacon antenna
US2968038A (en) * 1959-02-19 1961-01-10 Hauptschein Arthur Multiband tail-cap antenna
US3138101A (en) * 1960-05-25 1964-06-23 M L Aviat Company Target practice systems
US3380051A (en) * 1966-04-28 1968-04-23 Babcock Electronics Corp Range and angle measuring system
GB1318064A (en) * 1969-11-18 1973-05-23 Licentia Gmbh Short wave radio direction finders
US4225869A (en) * 1979-03-26 1980-09-30 The United States Of America As Represented By The Secretary Of The Army Multislot bicone antenna
DE3503997A1 (en) * 1984-12-10 1986-06-12 Mizukami, Isami, Sapporo, Hokkaido Antenna for use in the case of a mobile station
US5523767A (en) * 1993-02-17 1996-06-04 The United States Of America As Represented By The Secretary Of The Army Wideband dual-polarized tilted dipole antenna
US6842141B2 (en) * 2002-02-08 2005-01-11 Virginia Tech Inellectual Properties Inc. Fourpoint antenna
FR2883671A1 (en) * 2005-03-24 2006-09-29 Groupe Ecoles Telecomm ULTRA-LARGE BAND ANTENNA PROVIDING GREAT DESIGN FLEXIBILITY
US7170461B2 (en) * 2005-05-04 2007-01-30 Harris Corporation Conical dipole antenna and associated methods
US7808441B2 (en) * 2007-08-30 2010-10-05 Harris Corporation Polyhedral antenna and associated methods
US8228257B2 (en) * 2008-03-21 2012-07-24 First Rf Corporation Broadband antenna system allowing multiple stacked collinear devices
US7973731B2 (en) * 2008-05-23 2011-07-05 Harris Corporation Folded conical antenna and associated methods
US7864127B2 (en) * 2008-05-23 2011-01-04 Harris Corporation Broadband terminated discone antenna and associated methods
US8537066B2 (en) 2011-08-25 2013-09-17 Harris Corporation Truncated biconical dipole antenna with dielectric separators and associated methods
US9077076B2 (en) * 2012-01-31 2015-07-07 Keysight Technologies, Inc. Compact, ultra-broadband antenna with doughnut-like radiation pattern
US9553369B2 (en) 2014-02-07 2017-01-24 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Ultra-wideband biconical antenna with excellent gain and impedance matching
CN105428803B (en) * 2015-12-17 2018-05-18 北京无线电计量测试研究所 A kind of dual rotary parabola element antenna
US10819027B1 (en) 2016-10-12 2020-10-27 Maxtena, Inc. Wideband multiple-input multiple-output antenna array with tapered body elements

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204738A (en) * 1987-05-05 1988-11-16 Bernard John Charles Spencer Wideband radio aerial
GB2204738B (en) * 1987-05-05 1991-01-09 Bernard John Charles Spencer Wideband radio aerial
GB2302990A (en) * 1995-07-04 1997-02-05 Marconi Gec Ltd Dipole antenna
GB2302990B (en) * 1995-07-04 1999-07-28 Marconi Gec Ltd Dipole antenna
EP2515378A2 (en) 2011-04-20 2012-10-24 EADS Deutschland GmbH Antenna system with two rotation-symmetric, coaxial antennas
DE102011018313A1 (en) 2011-04-20 2012-10-25 Eads Deutschland Gmbh Antenna system with two rotationally symmetrical, coaxial antennas
DE102011018313B4 (en) * 2011-04-20 2012-11-08 Eads Deutschland Gmbh Antenna system with two rotationally symmetrical, coaxial antennas

Also Published As

Publication number Publication date
US2175252A (en) 1939-10-10

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