GB670001A - A directive antenna and arrangement for the use thereof - Google Patents

A directive antenna and arrangement for the use thereof

Info

Publication number
GB670001A
GB670001A GB29635/48A GB2963548A GB670001A GB 670001 A GB670001 A GB 670001A GB 29635/48 A GB29635/48 A GB 29635/48A GB 2963548 A GB2963548 A GB 2963548A GB 670001 A GB670001 A GB 670001A
Authority
GB
United Kingdom
Prior art keywords
flap
flaps
line
energized
nov
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
GB29635/48A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB670001A publication Critical patent/GB670001A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/286—Adaptation for use in or on aircraft, missiles, satellites, or balloons substantially flush mounted with the skin of the craft
    • 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
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/281—Nose antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations 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 two or more substantially straight conductive elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)

Abstract

670,001. Aerials. RADIO CORPORATION OF AMERICA. Nov. 15, 1948 [Nov. 13, 1947], No. 29635/48. Class 40 (vii). A highly directive antenna for mounting on a conductive area 11, which may be the skin of an aircraft, comprises a line of metallic flaps 21, 22, 23, 24 and 25 attached at one edge of the conductive area and tilted up at a small angle #. The wedge-shaped openings at the ends of the flaps are closed by conductive walls 31, 32, 33, 34 and 35 which may be integral with the flaps or separate triangles soldered or welded thereto. Only one end wall of each wedge unit is shown as Fig. 2 is a part sectional view along the centre-line 2-2 of Fig. 3 (not shown). Each flap is about 0.34# wide and 3/4 # long and the overlap is such as to give a free surface of width #/4. The flap 22 is energized by a transmission line having its inner conductor 16 connected to the inner surface of the flap and its sheath 17 connected to the sheet 11. Flap 21 acts as a reflector and flaps 23, 24, 25 as directors, being parasitically energized on tuning by means of capacitor discs 41 attached to threaded screws 42. A stream-lining and protective cover 50 of insulating material is fitted over the whole assemby, one of which may be fitted on each side of an aircraft nose to provide overlapping beams as in Fig. 1 (not shown), for radio homing purposes.
GB29635/48A 1947-11-13 1948-11-15 A directive antenna and arrangement for the use thereof Expired GB670001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US785584A US2573401A (en) 1947-11-13 1947-11-13 Louver antenna

Publications (1)

Publication Number Publication Date
GB670001A true GB670001A (en) 1952-04-09

Family

ID=25135953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29635/48A Expired GB670001A (en) 1947-11-13 1948-11-15 A directive antenna and arrangement for the use thereof

Country Status (3)

Country Link
US (1) US2573401A (en)
FR (1) FR974367A (en)
GB (1) GB670001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541276A1 (en) * 1991-11-04 1993-05-12 Hughes Aircraft Company Broadband conformal inclined slotline antenna array

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092770A (en) * 1956-06-26 1963-06-04 Leslie E Shoemaker Emergency long range communication system
US4779097A (en) * 1985-09-30 1988-10-18 The Boeing Company Segmented phased array antenna system with mechanically movable segments
GB0028851D0 (en) * 2000-11-27 2001-01-10 Nokia Mobile Phones Ltd Improved antenna
US6756949B2 (en) * 2002-09-24 2004-06-29 Spx Corporation Wideband cavity-backed antenna
US9747480B2 (en) 2011-12-05 2017-08-29 Adasa Inc. RFID and robots for multichannel shopping
US11093722B2 (en) 2011-12-05 2021-08-17 Adasa Inc. Holonomic RFID reader
US9780435B2 (en) 2011-12-05 2017-10-03 Adasa Inc. Aerial inventory antenna
US10476130B2 (en) 2011-12-05 2019-11-12 Adasa Inc. Aerial inventory antenna
US10050330B2 (en) 2011-12-05 2018-08-14 Adasa Inc. Aerial inventory antenna
US10846497B2 (en) 2011-12-05 2020-11-24 Adasa Inc. Holonomic RFID reader

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2400867A (en) * 1942-06-27 1946-05-21 Rca Corp Antenna
US2414266A (en) * 1942-06-27 1947-01-14 Rca Corp Antenna
US2425303A (en) * 1943-05-26 1947-08-12 Rca Corp Antenna system for radio drift indication
US2418084A (en) * 1945-11-05 1947-03-25 United Air Lines Inc Antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541276A1 (en) * 1991-11-04 1993-05-12 Hughes Aircraft Company Broadband conformal inclined slotline antenna array
TR26121A (en) * 1991-11-04 1995-02-15 Hughes Aircraft Co WIDE BAND, EFFICIENT INTERMEDIATE CLEARED LOW ANTENNA KNEE.

Also Published As

Publication number Publication date
FR974367A (en) 1951-02-21
US2573401A (en) 1951-10-30

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