GB884313A - Improvements in or relating to passive aerials - Google Patents

Improvements in or relating to passive aerials

Info

Publication number
GB884313A
GB884313A GB27336/59A GB2733659A GB884313A GB 884313 A GB884313 A GB 884313A GB 27336/59 A GB27336/59 A GB 27336/59A GB 2733659 A GB2733659 A GB 2733659A GB 884313 A GB884313 A GB 884313A
Authority
GB
United Kingdom
Prior art keywords
wave
plane
situated
reflector
spaced
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
GB27336/59A
Inventor
Hubert David Fuller
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB27336/59A priority Critical patent/GB884313A/en
Priority to FR835320A priority patent/FR1264818A/en
Priority to US48006A priority patent/US3137000A/en
Publication of GB884313A publication Critical patent/GB884313A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q19/10—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 reflecting surfaces
    • H01Q19/18—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 reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—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 reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—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 reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

884,313. Aerials. GENERAL ELECTRIC CO. Ltd. Aug. 2, 1960 [Aug. 10, 1959], No. 27336/59. Class 40(7). A passive aerial comprises a rigid dielectric element of paper honeycomb and a plurality of mutually spaced conductors carried by the dielectric element. A quarter-wave reflecting plate comprises a honeycomb structure 3 of synthetic resin impregnated paper sandwiched between two fibre-glass skins 1 and 2 to whose front surfaces are fixed respectively parallel conductors 4 (spaced at less than half a wavelength) and a reflecting sheet 5. A second honeycomb structure 6 may be attached to the back of skin 2 to enhance rigidity. A directional aerial system comprises such a plate 12, Fig. 3, capable of axial movement about mutually perpendicular axes 18 and 19, and a horn radiator 14 situated at the focus of a parabolic reflector 16. The reflector 16 comprises metallic strips 17 spaced at less than half a wavelength and situated parallel to the plane of the electric vector of the radiation from the horn so that this is reflected back on to the quarter-wave reflecting plate 12. The conductors 4 on this are situated at 45 degrees 'to the plane of polarization of the radiation so that the wave incident upon the plate is reflected polarized in a plane perpendicular to that of the incident wave. Thus the reflected wave passes through the reflector 16 to produce a parallel plane polarized beam.
GB27336/59A 1959-08-10 1959-08-10 Improvements in or relating to passive aerials Expired GB884313A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB27336/59A GB884313A (en) 1959-08-10 1959-08-10 Improvements in or relating to passive aerials
FR835320A FR1264818A (en) 1959-08-10 1960-08-08 Improvements to passive antennas
US48006A US3137000A (en) 1959-08-10 1960-08-08 Quarter-wave reflecting plate with support core of resin-impregnated paper honeycomb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27336/59A GB884313A (en) 1959-08-10 1959-08-10 Improvements in or relating to passive aerials

Publications (1)

Publication Number Publication Date
GB884313A true GB884313A (en) 1961-12-13

Family

ID=10257916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27336/59A Expired GB884313A (en) 1959-08-10 1959-08-10 Improvements in or relating to passive aerials

Country Status (2)

Country Link
US (1) US3137000A (en)
GB (1) GB884313A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192309A (en) * 1977-12-16 1988-01-06 Elliott Bros Energy reflectors
GB2192308A (en) * 1977-12-16 1988-01-06 Elliott Bros Energy reflective bodies
CN112986943A (en) * 2021-03-01 2021-06-18 西安电子科技大学 Method for calculating electromagnetic scattering of honeycomb composite material target

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271771A (en) * 1962-02-15 1966-09-06 Hazeltine Research Inc Double-reflector, double-feed antenna for crossed polarizations and polarization changing devices useful therein
US3716869A (en) * 1970-12-02 1973-02-13 Nasa Millimeter wave antenna system
GB1400525A (en) * 1972-08-04 1975-07-16 Secr Defence Antenna incorporating artificial dielectric material
FR2450509A1 (en) * 1979-03-02 1980-09-26 Thomson Csf POLARIZER DEVICE FOR MICROWAVE ANTENNA
FR2458821A1 (en) * 1979-06-13 1981-01-02 Thomson Csf INTERFERENCE REDUCING DEVICE IN ROTARY RECTILINEAR POLARIZATION AND RADAR COMPRISING SUCH A DEVICE
US4575726A (en) * 1982-08-16 1986-03-11 Rca Corporation Antenna construction including two superimposed polarized parabolic reflectors
JPS5970005A (en) * 1982-10-15 1984-04-20 Toray Ind Inc Antenna
DE3431986A1 (en) * 1984-08-30 1986-03-06 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn POLARIZATION SEPARATING REFLECTOR
US4786914A (en) * 1985-01-25 1988-11-22 E-Systems, Inc. Meanderline polarization twister

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423648A (en) * 1943-01-27 1947-07-08 Rca Corp Antenna
US2554936A (en) * 1944-05-18 1951-05-29 Rca Corp Radio-frequency device
US2736895A (en) * 1951-02-16 1956-02-28 Elliott Brothers London Ltd High frequency radio aerials
US2747180A (en) * 1952-06-20 1956-05-22 Zenith Plastics Company Radar reflector
US2840811A (en) * 1954-05-17 1958-06-24 Edward B Mcmillan Dielectric bodies for transmission of electromagnetic waves
US2930039A (en) * 1954-10-18 1960-03-22 Gabriel Co Antenna system for variable polarization
US3005986A (en) * 1956-06-01 1961-10-24 Hughes Aircraft Co Parallel strip transmission antenna array
US3001196A (en) * 1959-01-16 1961-09-19 Gen Dynamics Corp Dual pattern antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192309A (en) * 1977-12-16 1988-01-06 Elliott Bros Energy reflectors
GB2192308A (en) * 1977-12-16 1988-01-06 Elliott Bros Energy reflective bodies
CN112986943A (en) * 2021-03-01 2021-06-18 西安电子科技大学 Method for calculating electromagnetic scattering of honeycomb composite material target
CN112986943B (en) * 2021-03-01 2024-01-12 西安电子科技大学 Method for calculating electromagnetic scattering of honeycomb composite material target

Also Published As

Publication number Publication date
US3137000A (en) 1964-06-09

Similar Documents

Publication Publication Date Title
GB884313A (en) Improvements in or relating to passive aerials
GB1330175A (en) Radio aerials
US3271771A (en) Double-reflector, double-feed antenna for crossed polarizations and polarization changing devices useful therein
GB874509A (en) Improvements in or relating to radio horns
US3096519A (en) Composite reflector for two independent orthogonally polarized beams
Borgiotti Maximum power transfer between two planar apertures in the Fresnel zone
GB1481175A (en) Circularly polarized phased antenna array
US3340535A (en) Circular polarization cassegrain antenna
GB815178A (en) Two-channel radio beam antenna arrangement
GB938928A (en) Aerial system for ultra-short waves
ES361117A1 (en) Bidirectional electronically scanned antenna system
GB1268341A (en) Improvements in parabolic antennas
GB978509A (en) Improvements in and relating to aerials
ES329047A1 (en) An antenna provision. (Machine-translation by Google Translate, not legally binding)
GB1025182A (en) Improvements relating to radio lenses
GB976253A (en) Improvements in or relating to aerial systems
GB901005A (en) Improvements in or relating to a parabolic reflector antenna for waves polarized in two directions
GB1342892A (en) Aircraft antennas
GB1240529A (en) Polarisers
GB758957A (en) Improvements relating to ultra-high frequency aerials
GB1366259A (en) Wide-band electromagnetic wave reflectors
GB958799A (en) Electromagnetic wave transmission systems
GB1305117A (en)
GB1028264A (en) Improvements in or relating to focusing elements for electromagnetic wave energy
GB1205014A (en) Improvements in or relating to directional aerial systems