GB1413041A - Dipole aerial - Google Patents

Dipole aerial

Info

Publication number
GB1413041A
GB1413041A GB604073A GB604073A GB1413041A GB 1413041 A GB1413041 A GB 1413041A GB 604073 A GB604073 A GB 604073A GB 604073 A GB604073 A GB 604073A GB 1413041 A GB1413041 A GB 1413041A
Authority
GB
United Kingdom
Prior art keywords
dipole
outer conductor
sheet
foil
conductor
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
GB604073A
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.)
MEL EQUIPMENT CO Ltd
Original Assignee
MEL EQUIPMENT 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 MEL EQUIPMENT CO Ltd filed Critical MEL EQUIPMENT CO Ltd
Priority to GB604073A priority Critical patent/GB1413041A/en
Priority to DE19742403474 priority patent/DE2403474A1/en
Priority to FR7403774A priority patent/FR2216687A1/fr
Priority to JP1583974A priority patent/JPS49112555A/ja
Publication of GB1413041A publication Critical patent/GB1413041A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/22Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element
    • H01Q19/24Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element the primary active element being centre-fed and substantially straight, e.g. H-antenna
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/06Details
    • H01Q9/065Microstrip dipole antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

1413041 Aerials MEL EQUIPMENT CO Ltd 7 Feb 1973 6040/73 Heading H4A Each arm of a dipole aerial is coplanar with a respective outer conductor of a triplate transmission line, one arm being connected to a centre conductor of the line, and the other arm being connected to an outer conductor of the line. Each outer conductor has one or more edge portions substantially forming a line reflector parallel to the dipole. Corresponding points of the two outer conductors adjacent the said edge portions are electrically interconnected by members which extend therebetween, and which are spaced apart by intervals of less than a quarter-wavelength at the mid-band operating frequency of the dipole. As described two dielectric material sheets 1, 2 which are initially completely clad with copper foil on both sides are processed by standard printed circuit techniques to provide conductive patterns as shown. On the outer face of the sheet 1 the foil is shaped to form one outer conductor 3 of a triplate transmission line, and two corresponding dipole arms 5A, 6A, each connected to the outer conductor. The foil is entirely removed from the inner face of the sheet 1. On the outer face of the sheet 2 the foil is shaped to form the other outer conductor 4 of the triplate transmission line and two other corresponding dipole arms 5B, 6B. These arms are separated from the outer conductor by narrow gaps 5C, 6C. On the inner face of the sheet 2 the foil is shaped to form the inner conductor 7 of the triplate transmission line, leading to a first port of a four-port hybrid ring 8 acting as a power divider. Second and third ports of the hybrid ring are respectively connected to one arm of each dipole, and a fourth port is connected to a central pill-shaped resistive matching load. The connections to the dipoles are made through quarter wavelength matching sections 11, 12 leading to higher impedance sections 13, 14, the ends of which are respectively connected to the arms 5B, 6B by rivets passing through the sheet 2. The two inner faces of the sheets are placed together and they are mechanically connected together by rivets around the edges of the outer conductors, which are thereby electrically connected together. The rivets are spaced at intervals of less than a quarter wavelength, and are arranged to be well clear of any part of the central conductive pattern (Fig. 4 not shown). Edge portions 15 of the outer conductors 3, 4 serve as reflectors for the dipoles, and directors may also be provided. The aerial may be mounted within a relatively slim radome on the outside of an aircraft. The radome may be filled with foamed dielectric material, and a layer of R.F. absorbing material may be put between the aerial and the skin of the aircraft.
GB604073A 1973-02-07 1973-02-07 Dipole aerial Expired GB1413041A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB604073A GB1413041A (en) 1973-02-07 1973-02-07 Dipole aerial
DE19742403474 DE2403474A1 (en) 1973-02-07 1974-01-25 DIPOLA ANTENNA
FR7403774A FR2216687A1 (en) 1973-02-07 1974-02-05
JP1583974A JPS49112555A (en) 1973-02-07 1974-02-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB604073A GB1413041A (en) 1973-02-07 1973-02-07 Dipole aerial

Publications (1)

Publication Number Publication Date
GB1413041A true GB1413041A (en) 1975-11-05

Family

ID=9807335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB604073A Expired GB1413041A (en) 1973-02-07 1973-02-07 Dipole aerial

Country Status (4)

Country Link
JP (1) JPS49112555A (en)
DE (1) DE2403474A1 (en)
FR (1) FR2216687A1 (en)
GB (1) GB1413041A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758843A (en) * 1986-06-13 1988-07-19 General Electric Company Printed, low sidelobe, monopulse array antenna
GB2202091A (en) * 1987-03-09 1988-09-14 British Gas Plc Microstrip antenna

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5141490A (en) * 1974-09-30 1976-04-07 Asahi Chemical Ind Biseibutsukintaino seiho
DE2811521A1 (en) * 1977-04-18 1978-10-19 Bendix Corp SYMMETRIZED BANDLINE DIPOLE
US4438437A (en) * 1981-09-14 1984-03-20 Hazeltine Corporation Dual mode blade antenna
JPS6124309A (en) * 1984-07-13 1986-02-03 Matsushita Electric Works Ltd Microstrip line antenna
JPH04179304A (en) * 1990-11-13 1992-06-26 Dx Antenna Co Ltd Plane antenna
JP2505327Y2 (en) * 1993-05-20 1996-07-31 日本電業工作株式会社 Slot-shaped twin spiral antenna
US6556169B1 (en) * 1999-10-22 2003-04-29 Kyocera Corporation High frequency circuit integrated-type antenna component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758843A (en) * 1986-06-13 1988-07-19 General Electric Company Printed, low sidelobe, monopulse array antenna
GB2202091A (en) * 1987-03-09 1988-09-14 British Gas Plc Microstrip antenna
GB2202091B (en) * 1987-03-09 1990-11-28 British Gas Plc Broadband microstrip antennas.

Also Published As

Publication number Publication date
DE2403474A1 (en) 1974-08-08
JPS49112555A (en) 1974-10-26
FR2216687A1 (en) 1974-08-30

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee