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GB805478A - Omnidirectional antenna - Google Patents

Omnidirectional antenna

Info

Publication number
GB805478A
GB805478A GB11187/57A GB1118757A GB805478A GB 805478 A GB805478 A GB 805478A GB 11187/57 A GB11187/57 A GB 11187/57A GB 1118757 A GB1118757 A GB 1118757A GB 805478 A GB805478 A GB 805478A
Authority
GB
United Kingdom
Prior art keywords
reflector
circularly polarized
conical
april
probes
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
GB11187/57A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB805478A publication Critical patent/GB805478A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/04—Biconical horns

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

805,478. Aerials. STANDARD TELEPHONES & CABLES Ltd. April 5, 1957 [April 6, 1956], No. 11187/57. Class 40 (7). An omnidirectional aerial capable of transmitting and receiving circularly polarized radiation comprises two juxtaposed conductive reflectors 1 and 2 in the form of surfaces of revolution having a common axis 3. The first reflector 1 is concave and normally paraboloidal whilst the second 2 is conical, tapered in the direction of the first and has an opening 4 coaxial with the common axis and associated with an arrangement within the conical reflector for feeding circularly polarized energy to or from the aerial. The feeder may be a coaxial transmission line 7 and in one embodiment it is divided at 18 to feed two orthogonally arranged probes 17 in a round or square radiating waveguide S. Energy fed to the probes is phased to produce circularly polarized waves which are reflected in a substantially parallel beam by reflector 1 and radiated horizontally and omnidirectionally after reflection by conical reflector 2. In another embodiment (Fig. 2, not shown) the line 7 is coupled to a helical element arranged along the axis of the waveguide S.
GB11187/57A 1956-04-06 1957-04-05 Omnidirectional antenna Expired GB805478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US805478XA 1956-04-06 1956-04-06

Publications (1)

Publication Number Publication Date
GB805478A true GB805478A (en) 1958-12-10

Family

ID=22158092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11187/57A Expired GB805478A (en) 1956-04-06 1957-04-05 Omnidirectional antenna

Country Status (1)

Country Link
GB (1) GB805478A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117786Y1 (en) * 1970-03-31 1976-05-13
GB2155245A (en) * 1984-02-29 1985-09-18 Standard Telephones Cables Ltd Antenna systems
GB2311169A (en) * 1996-03-04 1997-09-17 Andrew Corp A broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control
GB2326530A (en) * 1997-04-22 1998-12-23 Andrew Corp Antenna with parabolic and conical reflectors
US6094174A (en) * 1996-03-04 2000-07-25 Andrew Corporation Broadband omnidirectional microwave parabolic dish--shaped cone antenna
US8803749B2 (en) 2011-03-25 2014-08-12 Kwok Wa Leung Elliptically or circularly polarized dielectric block antenna
CN109755744A (en) * 2019-02-19 2019-05-14 深圳市和盈互联科技有限公司 A kind of antenna for wearable device
CN116759786A (en) * 2023-08-11 2023-09-15 成都华兴大地科技有限公司 W-band omnidirectional antenna

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117786Y1 (en) * 1970-03-31 1976-05-13
GB2155245A (en) * 1984-02-29 1985-09-18 Standard Telephones Cables Ltd Antenna systems
GB2311169A (en) * 1996-03-04 1997-09-17 Andrew Corp A broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control
US6011521A (en) * 1996-03-04 2000-01-04 Andrew Corporation Broadband omnidirectional microwave parabolic dish-shaped cone antenna
US6094174A (en) * 1996-03-04 2000-07-25 Andrew Corporation Broadband omnidirectional microwave parabolic dish--shaped cone antenna
GB2326530A (en) * 1997-04-22 1998-12-23 Andrew Corp Antenna with parabolic and conical reflectors
GB2326530B (en) * 1997-04-22 2001-12-19 Andrew Corp A broadband omnidirectional microwave parabolic dish shaped cone antenna
US8803749B2 (en) 2011-03-25 2014-08-12 Kwok Wa Leung Elliptically or circularly polarized dielectric block antenna
CN109755744A (en) * 2019-02-19 2019-05-14 深圳市和盈互联科技有限公司 A kind of antenna for wearable device
CN109755744B (en) * 2019-02-19 2023-12-15 深圳市飞亚达精密科技有限公司 Antenna for wearable equipment
CN116759786A (en) * 2023-08-11 2023-09-15 成都华兴大地科技有限公司 W-band omnidirectional antenna
CN116759786B (en) * 2023-08-11 2023-11-07 成都华兴大地科技有限公司 W-band omnidirectional antenna

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