GB805409A - Omnidirectional beacon antenna - Google Patents

Omnidirectional beacon antenna

Info

Publication number
GB805409A
GB805409A GB32717/56A GB3271756A GB805409A GB 805409 A GB805409 A GB 805409A GB 32717/56 A GB32717/56 A GB 32717/56A GB 3271756 A GB3271756 A GB 3271756A GB 805409 A GB805409 A GB 805409A
Authority
GB
United Kingdom
Prior art keywords
units
counterpoise
group
fed
elements
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
GB32717/56A
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 GB805409A publication Critical patent/GB805409A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Abstract

805,409. Aerials. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1956 [Nov. 14, 1955], No. 32717/56. Class 40 (7). An aerial system suitable for use at a Tacan radio-navigation beacon station comprises a vertically aligned group of spaced bi-conical elements 1 to 6 inclusive. Aligned with and above the group is a further bi-conical element 7 separated from the group by a conductive counterpoise surface 9. The purpose of this element is to improve the vertical-angle coverage. The feed to the array is by means of coaxial line 8 the energy from which is divided at point 11 and further at points 17 and 18 in the upper part and at 12, 14 and 16 in the lower part. Matching transformers (not shown) are included at the division points and the power distribution between the units 1 to 6 is in the ratio 1 :4 :9 :9 :4 :1. The element 7 receives the same power as the central units 3 and 4. It is arranged that the current fed to units 1 and 2 leads and that fed to units 5, 6 and 7 lags with respect to that fed to units 3 and 4 so as to uptilt the vertical lobe. In order to provide the modulation necessary in the Tacan beacon the elements above described are housed in a tube of fibreglass or the like 20 and mounted centrally in a structure including a counterpoise 25 corresponding to the counterpoise 9 of Fig. 1, and a bottom counterpoise 24. A parasitic element 21 of high resistance wire is supported on a cylinder 22 of non-conductive material rotatable to give the fundamental frequency modulation while a plurality of parasitic elements equally spaced on a second cylinder 23 rotated in synchronism gives the harmonic frequency modulation.
GB32717/56A 1955-11-14 1956-10-26 Omnidirectional beacon antenna Expired GB805409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US546617A US2866194A (en) 1955-11-14 1955-11-14 Omnidirectional beacon antenna

Publications (1)

Publication Number Publication Date
GB805409A true GB805409A (en) 1958-12-03

Family

ID=24181229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32717/56A Expired GB805409A (en) 1955-11-14 1956-10-26 Omnidirectional beacon antenna

Country Status (5)

Country Link
US (1) US2866194A (en)
BE (1) BE557518A (en)
DE (1) DE1042674B (en)
FR (1) FR77952E (en)
GB (1) GB805409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG144726A1 (en) * 1999-12-14 2008-08-28 Ems Technologies Inc Omnidirectional antenna utilizing an asymmetrical bicone as a passive feed for a radiating element
DE102009014780A1 (en) 2008-03-25 2009-10-01 Radiodetection Ltd. Time Domain Reflectometry

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040319A (en) * 1958-12-09 1962-06-19 Itt Beacon antenna system
US3153239A (en) * 1960-09-13 1964-10-13 Adams Russel Co Inc Omnidirectional vertically polarized antenna
US3141169A (en) * 1960-11-21 1964-07-14 Itt Omnidirectional beacon antenna having dipole radiator and parasitically fed horn radiator
US4225869A (en) * 1979-03-26 1980-09-30 The United States Of America As Represented By The Secretary Of The Army Multislot bicone antenna
US4743916A (en) * 1985-12-24 1988-05-10 The Boeing Company Method and apparatus for proportional RF radiation from surface wave transmission line
WO1994022180A1 (en) * 1993-03-18 1994-09-29 Gabriel Electronics Incorporated Stacked biconical omnidirectional antenna
WO2001052447A2 (en) 2000-01-14 2001-07-19 Andrew Corporation Repeaters for wireless communication systems
US6864853B2 (en) * 1999-10-15 2005-03-08 Andrew Corporation Combination directional/omnidirectional antenna
US6593892B2 (en) 2001-07-03 2003-07-15 Tyco Electronics Logistics Ag Collinear coaxial slot-fed-biconical array antenna
US7623868B2 (en) 2002-09-16 2009-11-24 Andrew Llc Multi-band wireless access point comprising coextensive coverage regions
US20040203804A1 (en) * 2003-01-03 2004-10-14 Andrew Corporation Reduction of intermodualtion product interference in a network having sectorized access points

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631237A (en) * 1948-05-08 1953-03-10 Fed Telecomm Lab Inc Antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG144726A1 (en) * 1999-12-14 2008-08-28 Ems Technologies Inc Omnidirectional antenna utilizing an asymmetrical bicone as a passive feed for a radiating element
DE102009014780A1 (en) 2008-03-25 2009-10-01 Radiodetection Ltd. Time Domain Reflectometry

Also Published As

Publication number Publication date
FR77952E (en) 1962-05-18
DE1042674B (en) 1958-11-06
US2866194A (en) 1958-12-23
BE557518A (en)

Similar Documents

Publication Publication Date Title
GB805409A (en) Omnidirectional beacon antenna
US2267889A (en) Antenna with wide wave range
GB714974A (en) Antenna system combinations and arrays
GB1275579A (en) Electronically controlled antenna system
GB680512A (en) Antenna assembly
GB1338753A (en) Multimode antenna
GB654142A (en) Improvements in and relating to antennae
JPS57107610A (en) Circular polarized wave cone beam antenna
GB1258656A (en)
GB536526A (en) Improvements in or relating to radio antennae
GB773297A (en) Suppression of vertically polarized radiation from an omni-directional range antenna system
GB654935A (en) Improvements in and relating to high frequency antennae
US3613099A (en) Vor antenna system
US2979719A (en) Omnidirectional beacon antenna
GB539686A (en) Ultra-high frequency radio systems
GB1513880A (en) Vertical antenna having an eccentric supply
GB781419A (en) Antenna structure
GB727527A (en) Improvements in or relating to antennae
GB844559A (en) Omnidirectional beacon antenna
GB666285A (en) An improved wireless aerial
GB753565A (en) Improvements in or relating to antennae
GB842533A (en) Improvements in or relating to aerial arrangements
GB840149A (en) Omnidirectional beacon antenna
GB814355A (en) Improvements in or relating to very short wave aerial systems
GB813613A (en) Improvements relating to aerials