GB1026112A - Antenna system - Google Patents
Antenna systemInfo
- Publication number
- GB1026112A GB1026112A GB44341/63A GB4434163A GB1026112A GB 1026112 A GB1026112 A GB 1026112A GB 44341/63 A GB44341/63 A GB 44341/63A GB 4434163 A GB4434163 A GB 4434163A GB 1026112 A GB1026112 A GB 1026112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflecting means
- reflector
- secondary element
- flip
- flop
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
- H01Q3/46—Active lenses or reflecting arrays
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
1,026,112. Aerials. BLASS ANTENNA ELECTRONICS CORPORATION. Nov. 11, 1963 [Dec. 12, 1962], No. 44341/63. Heading H4A. [Also in Division H1] A steerable pencil beam is produced by a horn feed 40 and a reflector 30 comprising a planar array of secondary elements each at one end of a respective straight transmission line containing a longitudinally adjustable reflecting means so that the signal re-radiated by each secondary element is delayed relative to the radiation signal incident thereon, the different reflecting means being relatively adjusted so that the secondary elements focus the radiation transmitted or received by the primary feed in the same manner as a paraboloidal reflector, the orientation of the effective paraboloid (and hence the direction of the beam) being varied by varying the longitudinal positions of the various reflecting means. As described, each secondary element comprises either (1) the open end 32 of a ridge waveguide 34, Figs. 1 and 2, which constitutes the delay line, the apertures 32 being covered by a fibreglass radome 35, Fig. 2; or (2) a dipole 32<SP>1</SP> coupled to a coaxial line 34<SP>1</SP>, Fig. 10, a plane reflector 32<SP>11</SP> being spaced #/4 behind the dipoles 32<SP>1</SP>; alternatively, each secondary element may be a small horn. Each adjustable reflecting means may comprise a sliding metal shorting plunger but as described with reference to Figs. 3, 4, 4A and 5 (not shown), it comprises four shunt diodes uniformly spaced at #/8 intervals along the guide which are selectively rendered conductive by a beam director unit 80 to short-circuit the guide, the resultant effect being that the beam direction is changed in small discrete steps. The beam director unit presents appropriate signals to X and Y scan control generators (Fig. 7, not shown), whose outputs are presented to scan control networks consisting of conventional digital circuitry to provide phase delayed signals along the X and Y axes of the array through a flip-flop controlling the condition of the diodes in the guides 34 (Fig. 8, not shown). An additional digitally controlled signal (Fig. 9, not shown), may be provided between the binary circuit and the flip-flop to provide spherical correction. A plurality of separate feeds 40 may be used in conjunction with a single reflector 30 and in order to provide hemispherical scanning three separate systems 30-1, 30-2 and 30-3 may be arranged as shown in Fig. 11 and Fig. 12 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US244089A US3274601A (en) | 1962-12-12 | 1962-12-12 | Antenna system with electronic scanning means |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1026112A true GB1026112A (en) | 1966-04-14 |
Family
ID=22921334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB44341/63A Expired GB1026112A (en) | 1962-12-12 | 1963-11-11 | Antenna system |
Country Status (3)
Country | Link |
---|---|
US (1) | US3274601A (en) |
CH (1) | CH431640A (en) |
GB (1) | GB1026112A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2072030A1 (en) * | 1969-12-23 | 1971-09-24 | Siemens Ag | |
FR2074758A1 (en) * | 1970-01-26 | 1971-10-08 | Thomson Csf | |
FR2549300A1 (en) * | 1983-07-13 | 1985-01-18 | Tran Dinh Can | Electromechanical scanning device in particular for a radar antenna. |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3400405A (en) * | 1964-06-01 | 1968-09-03 | Sylvania Electric Prod | Phased array system |
US3404405A (en) * | 1965-04-30 | 1968-10-01 | Navy Usa | Luneberg lens with staggered waveguide feed |
US3604012A (en) * | 1968-08-19 | 1971-09-07 | Textron Inc | Binary phase-scanning antenna with diode controlled slot radiators |
DE1926498A1 (en) * | 1969-05-23 | 1970-11-26 | Siemens Ag | Method for the automatic tracking of the directional beam of a phased array antenna |
US3925784A (en) * | 1971-10-27 | 1975-12-09 | Radiation Inc | Antenna arrays of internally phased elements |
US3978484A (en) * | 1975-02-12 | 1976-08-31 | Collier Donald C | Waveguide-tuned phased array antenna |
FR2469808A1 (en) * | 1979-11-13 | 1981-05-22 | Etude Radiant Sarl | ELECTRONIC SCANNING DEVICE IN THE POLARIZATION PLAN |
FR2512281B1 (en) * | 1981-08-28 | 1983-10-28 | Thomson Csf | |
FR2595873B1 (en) * | 1986-03-14 | 1988-09-16 | Thomson Csf | REFLECTIVE NETWORK WITH PHASE CONTROL AND ANTENNA COMPRISING SUCH A NETWORK |
US5278574A (en) * | 1991-04-29 | 1994-01-11 | Electromagnetic Sciences, Inc. | Mounting structure for multi-element phased array antenna |
FR2685822B1 (en) * | 1991-12-31 | 1994-04-15 | Thomson Csf | PHASE CONTROL REFLECTIVE ARRAY. |
US8362965B2 (en) * | 2009-01-08 | 2013-01-29 | Thinkom Solutions, Inc. | Low cost electronically scanned array antenna |
DE102010001761A1 (en) * | 2010-02-10 | 2011-08-11 | Robert Bosch GmbH, 70469 | radar sensor |
JP7294608B2 (en) | 2017-08-18 | 2023-06-20 | ニデックエレシス株式会社 | antenna array |
JP2019050568A (en) | 2017-09-07 | 2019-03-28 | 日本電産株式会社 | Directional coupler |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB860826A (en) * | 1956-08-24 | 1961-02-08 | Secr Aviation | Improvements in or relating to electromagnetic wave lenses and mirrors |
-
1962
- 1962-12-12 US US244089A patent/US3274601A/en not_active Expired - Lifetime
-
1963
- 1963-11-11 GB GB44341/63A patent/GB1026112A/en not_active Expired
- 1963-12-12 CH CH1525363A patent/CH431640A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2072030A1 (en) * | 1969-12-23 | 1971-09-24 | Siemens Ag | |
FR2074758A1 (en) * | 1970-01-26 | 1971-10-08 | Thomson Csf | |
FR2549300A1 (en) * | 1983-07-13 | 1985-01-18 | Tran Dinh Can | Electromechanical scanning device in particular for a radar antenna. |
Also Published As
Publication number | Publication date |
---|---|
US3274601A (en) | 1966-09-20 |
CH431640A (en) | 1967-03-15 |
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