GB1310794A – Rectilinear polarization antennas
– Google Patents
GB1310794A – Rectilinear polarization antennas
– Google Patents
Rectilinear polarization antennas
Info
Publication number
GB1310794A
GB1310794A
GB2857371A
GB2857371A
GB1310794A
GB 1310794 A
GB1310794 A
GB 1310794A
GB 2857371 A
GB2857371 A
GB 2857371A
GB 2857371 A
GB2857371 A
GB 2857371A
GB 1310794 A
GB1310794 A
GB 1310794A
Authority
GB
United Kingdom
Prior art keywords
tubes
tube
aerial
radiated
dipole
Prior art date
1970-07-17
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
GB2857371A
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.)
Thales SA
Original Assignee
Thomson CSF SA
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.)
1970-07-17
Filing date
1971-06-17
Publication date
1973-03-21
1971-06-17
Application filed by Thomson CSF SA
filed
Critical
Thomson CSF SA
1973-03-21
Publication of GB1310794A
publication
Critical
patent/GB1310794A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01Q—ANTENNAS, i.e. RADIO AERIALS
H01Q21/00—Antenna arrays or systems
H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
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
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
H01Q9/18—Vertical disposition of the antenna
Abstract
1310794 Aerials. THOMSON CSF 17 June 1971 [17 July 1970] 28573/71 Heading H4A An aerial comprises two like, parallel, side-byside metal tubes 1, 2, Fig. 1, which are closed and connected together at their ends by two metal plates 3, 4, which are perpendicular to their axes. A feed conductor 8, which is the inner conductor of a co-axial cable 5, passes through the tube 1 at an opening 7 and is continued by a connection 10 to a terminating point 9 on the outside of the tube 2. The two tubes are closely spaced, and the aerial functions similarly to a slot in a conductive surface. If the tubes are vertically disposed, the radiated field is substantially horizontally polarized. The distance «k» from the plate 4 to the connection 10 is selected to obtain impedance matching between the cable and the aerial, and typical dimensions for the aerial in terms of the operating wavelength # are: diameter of tubes = 0À06 #, length of tubes = 0À5 #, distance between tubes = 0À03 #. The aerial is particularly applicable to radio beacons of the kind in which an amplitude modulated signal is radiated in a rotating cardioid pattern and a phase reference signal is radiated in an omnidirectional pattern. In one such arrangement four tubes 1, 2, 15, 14 are symmetrically disposed with their axes in square formation and are provided with two common end plates. A co-axial cable in each tube has its outer conductor connected to that tube at an aperture therealong, and its inner conductor extended and connected to the outside of the next tube, going clockwise (Fig. 2, not shown). The pairs of inner conductors 8, 16 and 19, 20 running respectively inside the pairs of diagonally opposite tubes 1, 15 and 2, 14 are connected to corresponding opposite terminals of two hybrid bridge circuits (21), (22), Fig. 3 (not shown). In each hybrid bridge circuit the said opposite terminals are connected by quarter-wavelength arms to a third terminal, from which they are fed in phase with reference signal power. They are connected by respective quarter-and three-quarter-wavelength arms to the other (fourth) bridge terminal, from which they are fed in anti-phase with modulated power for the rotating pattern signal. More than one set of four tubes may be used, with vertical stacking to obtain increased gain. By introducing a phaseshift between each of the stacked aerials the axis of the radiated lobe may be tilted above the horizon. As shown in Fig. 6, two sets of four-tube aerials are stacked in vertical formation above a circular counterpoise 50. In this arrangement, the omnidirectional field is radiated by three frames of four quadrants, each arranged to form two curved dipoles. For example, at the top the two quadrants 43, 44 form one centre-fed dipole, and the two quadrants 45, 46 form another centre-fed dipole. The ends of the one dipole form two capacitors 52, 53 with the ends of the other dipole. The use of hybrid bridge circuits in the feeding arrangements may be avoided when such separate radiators for the omni-directional field are provided, the coaxial cables being re-arranged so that two pass through one tube, and none through the diagonally opposite tube (Fig. 5, not shown).
GB2857371A
1970-07-17
1971-06-17
Rectilinear polarization antennas
Expired
GB1310794A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR7026431A
FR2104689B1
(en)
1970-07-17
1970-07-17
Publications (1)
Publication Number
Publication Date
GB1310794A
true
GB1310794A
(en)
1973-03-21
Family
ID=9058832
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2857371A
Expired
GB1310794A
(en)
1970-07-17
1971-06-17
Rectilinear polarization antennas
Country Status (10)
Country
Link
US
(1)
US3733611A
(en)
JP
(1)
JPS579241B1
(en)
BE
(1)
BE768464A
(en)
CA
(1)
CA931640A
(en)
DE
(1)
DE2135687A1
(en)
FR
(1)
FR2104689B1
(en)
GB
(1)
GB1310794A
(en)
LU
(1)
LU63542A1
(en)
NL
(1)
NL173801C
(en)
NO
(1)
NO130658C
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3128952A1
(en)
*
1981-07-22
1983-02-10
Standard Elektrik Lorenz Ag, 7000 Stuttgart
«ANTENNA FOR A TURNAR FIRE»
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3430127A1
(en)
*
1984-08-16
1986-02-27
Krauss-Maffei AG, 8000 München
DEVICE AND METHOD FOR DRYING PARTICULARLY FINE-GRAINED SOLID PARTICLES
JPS60188009A
(en)
*
1984-03-08
1985-09-25
ヤンマー農機株式会社
Reaming height controller in reamer
US6020860A
(en)
*
1997-04-29
2000-02-01
Howell Laboratories, Inc.
Antenna inner conductor and shorts system
US6452562B1
(en)
*
1999-06-07
2002-09-17
Honeywell International Inc.
Antenna system for ground based applications
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CA518722A
(en)
*
1955-11-22
Canadian Marconi Company
Resonant transmission line antenna
1970
1970-07-17
FR
FR7026431A
patent/FR2104689B1/fr
not_active
Expired
1971
1971-06-14
BE
BE768464A
patent/BE768464A/en
not_active
IP Right Cessation
1971-06-17
GB
GB2857371A
patent/GB1310794A/en
not_active
Expired
1971-06-29
US
US00157966A
patent/US3733611A/en
not_active
Expired – Lifetime
1971-07-14
NL
NLAANVRAGE7109699,A
patent/NL173801C/en
not_active
IP Right Cessation
1971-07-15
LU
LU63542D
patent/LU63542A1/xx
unknown
1971-07-16
DE
DE19712135687
patent/DE2135687A1/en
not_active
Ceased
1971-07-16
NO
NO2737/71A
patent/NO130658C/no
unknown
1971-07-16
CA
CA118477A
patent/CA931640A/en
not_active
Expired
1971-07-17
JP
JP5284471A
patent/JPS579241B1/ja
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3128952A1
(en)
*
1981-07-22
1983-02-10
Standard Elektrik Lorenz Ag, 7000 Stuttgart
«ANTENNA FOR A TURNAR FIRE»
Also Published As
Publication number
Publication date
CA931640A
(en)
1973-08-07
NL173801B
(en)
1983-10-03
NO130658B
(en)
1974-10-07
BE768464A
(en)
1971-11-03
NL173801C
(en)
1984-03-01
NL7109699A
(en)
1972-01-19
JPS579241B1
(en)
1982-02-20
NO130658C
(en)
1975-01-15
AU3113471A
(en)
1973-01-18
LU63542A1
(en)
1971-11-16
FR2104689B1
(en)
1975-01-10
US3733611A
(en)
1973-05-15
FR2104689A1
(en)
1972-04-21
DE2135687A1
(en)
1972-01-20
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Legal Events
Date
Code
Title
Description
1973-08-01
PS
Patent sealed [section 19, patents act 1949]
1987-02-11
PCNP
Patent ceased through non-payment of renewal fee
