GB1348478A - Aerial arrangements - Google Patents

Aerial arrangements

Info

Publication number
GB1348478A
GB1348478A GB1348478DA GB1348478A GB 1348478 A GB1348478 A GB 1348478A GB 1348478D A GB1348478D A GB 1348478DA GB 1348478 A GB1348478 A GB 1348478A
Authority
GB
United Kingdom
Prior art keywords
gap
areas
aerial
conductive
june
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
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Publication of GB1348478A publication Critical patent/GB1348478A/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
    • 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
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas

Landscapes

  • Structure Of Printed Boards (AREA)

Abstract

1348478 Aerials EMI Ltd 10 June 1971 [20 June 1970] 30024/70 Heading H4A In an aerial arrangement a slot transmission line is formed by two conductive areas 5 on a ceramic or other insulating substrate 1 with a gap 4 between them. Near one end of the gap the two areas are tapered down to form strips 7, 8, and these are terminated in dipole arms 2, 3. At the other end of the gap the two conductive areas are merged. They may be of gold film, and be shaped by a printed circuit technique. Power is fed into the aerial by means of a conductive strip which is disposed on the underface of the substrate, at right-angles to the gap (Fig. 2, not shown). In other embodiments the end parts of the conductive areas are abruptly stepped down, instead of being tapered, and in one the slot is wider inside the unstepped part of the areas than in the part which is stepped down (Figs. 3, 4, not shown).
GB1348478D 1970-06-20 1970-06-20 Aerial arrangements Expired GB1348478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3002470 1970-06-20

Publications (1)

Publication Number Publication Date
GB1348478A true GB1348478A (en) 1974-03-20

Family

ID=10301037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348478D Expired GB1348478A (en) 1970-06-20 1970-06-20 Aerial arrangements

Country Status (1)

Country Link
GB (1) GB1348478A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518827A1 (en) * 1981-12-18 1983-06-24 Thomson Csf DEVICE FOR SUPPLYING A RADIANT DIPOLE
FR2535531A1 (en) * 1982-10-29 1984-05-04 Thomson Csf Electromagnetic wave radiator and its use in an antenna with electronic scanning.
EP0252648A1 (en) * 1986-07-08 1988-01-13 THE GENERAL ELECTRIC COMPANY, p.l.c. A dipole
EP0474440A2 (en) * 1990-09-07 1992-03-11 Plessey Semiconductors Limited Moving vehicle transponder
US5376943A (en) * 1990-09-07 1994-12-27 Plessey Semiconductors Limited Moving vehicle transponder
WO2010089164A1 (en) * 2009-02-05 2010-08-12 Robert Bosch Gmbh Device for transmitting and/or receiving electromagnetic hf signals, and measuring machine and machine tool monitoring device having such a device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518827A1 (en) * 1981-12-18 1983-06-24 Thomson Csf DEVICE FOR SUPPLYING A RADIANT DIPOLE
EP0082751A1 (en) * 1981-12-18 1983-06-29 Thomson-Csf Microwave radiator and its use in an electronically scanned antenna
US4573056A (en) * 1981-12-18 1986-02-25 Thomson Csf Dipole radiator excited by a shielded slot line
FR2535531A1 (en) * 1982-10-29 1984-05-04 Thomson Csf Electromagnetic wave radiator and its use in an antenna with electronic scanning.
EP0252648A1 (en) * 1986-07-08 1988-01-13 THE GENERAL ELECTRIC COMPANY, p.l.c. A dipole
EP0474440A2 (en) * 1990-09-07 1992-03-11 Plessey Semiconductors Limited Moving vehicle transponder
GB2249924A (en) * 1990-09-07 1992-05-20 Marconi Electronic Devices Moving vehicle transponder
EP0474440A3 (en) * 1990-09-07 1993-07-07 Marconi Electronic Devices Limited Moving vehicle transponder
GB2249924B (en) * 1990-09-07 1994-06-15 Marconi Electronic Devices Moving vehicle transponder
US5376943A (en) * 1990-09-07 1994-12-27 Plessey Semiconductors Limited Moving vehicle transponder
WO2010089164A1 (en) * 2009-02-05 2010-08-12 Robert Bosch Gmbh Device for transmitting and/or receiving electromagnetic hf signals, and measuring machine and machine tool monitoring device having such a device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees