GB1359981A - Horizontal vehicle mounted omnidirectional loop ante'na having a shorting stub - Google Patents

Horizontal vehicle mounted omnidirectional loop ante'na having a shorting stub

Info

Publication number
GB1359981A
GB1359981A GB175473A GB175473A GB1359981A GB 1359981 A GB1359981 A GB 1359981A GB 175473 A GB175473 A GB 175473A GB 175473 A GB175473 A GB 175473A GB 1359981 A GB1359981 A GB 1359981A
Authority
GB
United Kingdom
Prior art keywords
aerial
vehicle
sides
shorting stub
supporting structure
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
GB175473A
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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of GB1359981A publication Critical patent/GB1359981A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/02—Collapsible antennas; Retractable antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)

Abstract

1359981 Aerials UNITED STATES ATOMIC ENERGY COMMISSION 12 Jan 1973 [8 Feb 1972] 1754/73 Heading H4A A rooftop aerial 12 for a railway or road vehicle is shaped in the form of a rectangle with long sides A and two shorter sides B, C. The side B connects together two adjacent ends of the sides A, and the side C extends from one of the other ends of the sides A to within a distance E of the other one 30 of said ends. A stud D from the end of the side C extends parallel to the adjacent side A, and is connected thereto by a perpendicularly disposed shorting stub F, which completes the loop. The aerial 12 is mounted horizontally on insulating supports above the metal roof of the vehicle, which serves as a ground plane. The inner conductor of a co-axial cable is connected to the end 30 of the aerial, and its outer conductor is connected to the roof of the vehicle. The coaxial cable may be connected at its other end to the output side of a line tuner, which is connected by another coaxial cable to a radio transmitter (Fig. 1, not shown). The aerial may be made from stainless steel tubing and the supporting structure from polyvinyl chloride. The supporting structure may be hinged, as shown in Fig. 4, so that the aerial may be raised and lowered, for example, by air under pressure from the vehicle braking system.
GB175473A 1972-02-08 1973-01-12 Horizontal vehicle mounted omnidirectional loop ante'na having a shorting stub Expired GB1359981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22449072A 1972-02-08 1972-02-08

Publications (1)

Publication Number Publication Date
GB1359981A true GB1359981A (en) 1974-07-17

Family

ID=22840935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB175473A Expired GB1359981A (en) 1972-02-08 1973-01-12 Horizontal vehicle mounted omnidirectional loop ante'na having a shorting stub

Country Status (9)

Country Link
US (1) US3725940A (en)
JP (1) JPS4889656A (en)
AU (1) AU5159273A (en)
BE (1) BE794982A (en)
CA (1) CA964734A (en)
DE (1) DE2306202A1 (en)
FR (1) FR2171269B3 (en)
GB (1) GB1359981A (en)
NL (1) NL7301703A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019830A (en) * 1989-03-13 1991-05-28 Harada Kogyo Kabushiki Kaisha Amplified FM antenna with parallel radiator and ground plane
EP0584882A1 (en) * 1992-08-28 1994-03-02 Philips Electronics Uk Limited Loop antenna
US5686903A (en) * 1995-05-19 1997-11-11 Prince Corporation Trainable RF transceiver
US5699054A (en) * 1995-05-19 1997-12-16 Prince Corporation Trainable transceiver including a dynamically tunable antenna
US6943740B1 (en) 2001-04-26 2005-09-13 Arthur Garabedian Methods and systems for concealing antennas
US8059047B2 (en) * 2003-02-27 2011-11-15 Ethertronics, Inc. Capacitively loaded dipole antenna optimized for size
AU2003303179A1 (en) * 2002-12-17 2004-07-14 Ethertronics, Inc. Antennas with reduced space and improved performance
US7616164B2 (en) * 2003-02-27 2009-11-10 Ethertronics, Inc. Optimized capacitive dipole antenna

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221939A (en) * 1937-11-03 1940-11-19 Bendix Radio Corp Radio signaling system
US3299428A (en) * 1964-09-11 1967-01-17 Iii Lawrence P Tessari Horizontal semienclosed loop with conductive ground plane, having vertical whip extening from within loop enclosure

Also Published As

Publication number Publication date
DE2306202A1 (en) 1973-08-23
NL7301703A (en) 1973-08-10
CA964734A (en) 1975-03-18
FR2171269B3 (en) 1976-02-06
BE794982A (en) 1973-05-29
JPS4889656A (en) 1973-11-22
FR2171269A1 (en) 1973-09-21
AU5159273A (en) 1974-08-01
US3725940A (en) 1973-04-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees