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31. 发明专利

DE1516741A1 未知
公开(公告)号：DE1516741A1
公开(公告)日：1969-06-26
申请号：DE1516741
申请日：1966-03-25
申请人： CSF
发明人： PARQUIER GUY , PIERROT ROBERT
IPC分类号： H01Q19/18 , H01Q19/195 , H01Q19/14
摘要： 1,123,951. Aerials. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 24 March, 1966 [31 March, 1965], No. 13152/66. Heading H4A. In an aerial system having an axis of symmetry, a primary source 1 is located on the said axis at the common focus of two identically shaped intersecting paraboloidal elements which constitute a reflector 2, so constructed as to reflect or transmit radiation according to its direction of polarization. The radiation from the source 1 is so polarized as to be reflected, and it impinges as two plane wave-fronts on two plane twist-reflectors 3. These reflect them back with their direction of polarization rotated, for example by 90 degrees, so that they pass through the reflector 2 to a double prism 4, which aligns them to form a single wavefront travelling in the direction of the axis. The co-operating reflectors may build up aplanatic systems, and the twist-reflectors 3 may each be of a known kind comprising a metallic surface coated with a resinous dielectric in which is embedded a grid of parallel wires spaced not more than a half-wavelength from the said surface, and inclined at 45 degrees to the incident electric reactors. In another embodiment, the primary source 1 comprises an array of sources, disposed normally to the plane of the figure.

32. 发明专利

CA1087305A FEED SYSTEM FOR MICROWAVE ANTENNA 未知
公开(公告)号：CA1087305A
公开(公告)日：1980-10-07
申请号：CA300054
申请日：1978-03-30
申请人： ANDREW CORP
发明人： SCHMIDT DANIEL R JR , BUSSE JOSEPH F
IPC分类号： H01Q19/12 , H01Q19/13 , H01Q19/14
摘要： A feed system for a dish-type microwave antenna has a primary radiator for directing a primary radiation pattern onto the dish-type antenna. A pair of symmetrical pattern control elements are aligned with the E plane of the antenna and extend radially outwardly from opposite sides of the axis of the primary radiator between the primary radiator and the antenna for increasing the antenna gain, reducing the sidelobe levels and reducing the half power beamwidth of the antenna in both the E and H planes. In an exemplary embodiment, the pattern control elements comprise metal strips mounted on the surface of a rigid coaxial cable extending along the axis of the primary radiator for transmitting microwaves to and from the primary radiator, and the metal strips are inclined toward the antenna.

33. 发明专利

GB1500689A RADAR ANTENNA SYSTEMS 未知
公开(公告)号：GB1500689A
公开(公告)日：1978-02-08
申请号：GB1669773
申请日：1973-04-06
申请人： SIEMENS AG
IPC分类号： H01Q25/02 , H01Q19/14
摘要： 1500689 Aerials SIEMENS AG 6 April 1973 [15 Sept 1972] 16697/73 Heading H4A An aerial comprises a reflector 1, e.g. paraboloidal (to afford a pencil beam), two linearly polarized horn radiators 5, and a conductive partition 7 perpendicular to the polarization direction, the partition not extending over the whole of the reflector. In the invention the partition consists of two parts 7a and the reflector consists of two halves 2, 3 joined by a metal strip 8; the separation between 2, 3 should not exceed #/2 at the operating wavelength. The aerial is particularly for use in an elevation-azimuth monopulse radar. Target acquisition is improved by tilting the reflector relative to the horns. For producing a fan beam a section of a parabola is utilized; for a cosec 2 pattern a doubly curved reflector is employed. The effects of jamming are reduced.

34. 发明专利

FI52258C Suunta-antenni. 未知
公开(公告)号：FI52258C
公开(公告)日：1977-07-11
申请号：FI354469
申请日：1969-12-05
申请人： TELEFUNKEN PATENT
发明人： SCHUETTLOEFFEL ERICH , KUEHNE HANS-DIETER
IPC分类号： H01P3/14 , H01Q1/12 , H01Q19/13 , H01Q19/14

35. 发明专利

DE2131352B2 未知
公开(公告)号：DE2131352B2
公开(公告)日：1976-12-30
申请号：DE2131352
申请日：1971-06-24
IPC分类号： G01S13/44 , H01Q21/24 , H01Q25/02 , H01Q19/14
摘要： A monopulse antenna comprising an assymetrical parabolic reflector illuminated by a monopulse horn. A circular polarizing array cover adapted for selective emplacement over the horn aperture is provided. Changing from linear to circular polarization by placing the polarizer, by itself, over the horn produces an angular shift in antenna boresite (axis). A dielectric lens is provided for insertion over the polarizer to introduce a linear corrective phase shift, thereby eliminating the said axis shift.

36. 发明专利

DE2505375A1 未知
公开(公告)号：DE2505375A1
公开(公告)日：1976-08-19
申请号：DE2505375
申请日：1975-02-08
申请人： LICENTIA GMBH
发明人： MACIEJEWSKI KURT
IPC分类号： H01Q13/02 , H01Q19/13 , H01Q19/14

37. 发明专利

DE2556905A1 未知
公开(公告)号：DE2556905A1
公开(公告)日：1976-07-08
申请号：DE2556905
申请日：1975-12-17
申请人： MOTOROLA INC
发明人： BALLEE ERNEST CHARLES , BREITHAUPT ROBERT CARL , GODWIN DONALD LEE , WALKER SCOTT HAMILTON
IPC分类号： H01Q19/185 , H01Q25/02 , H01Q19/14
摘要： An image element antenna array comprised of slot radiating elements is used for the antenna system for a monopulse tracking system. The image element antenna includes the radiating source disposed between two parallel reflecting planes, one of which is a total reflector and the other a partially reflecting and partially transmitting reflector. The employment of a partially reflecting plane allows for minimizing the number of radiating elements comprising a given antenna array while providing substantially the same gain and pattern activity. The antenna system may be mounted in a missile or the like for transmitting and receiving monopulse energy for steering the missile. The reduced number of radiating elements required reduces the feed network complexity and number with an attended increase in aperture efficiency.

38. 发明专利

DE2030145C3 未知
公开(公告)号：DE2030145C3
公开(公告)日：1974-10-17
申请号：DE2030145
申请日：1970-06-18
申请人： SIEMENS AG, 1000 BERLIN UND 8000 MUENCHEN
发明人： GILLITZER, ERWIN, DR.RER.NAT., 8024 DEISENHOFEN , THUST, PETER, DIPL.ING., 8000 MUENCHEN
IPC分类号： H01Q19/02 , H01Q19/14

39. 发明专利

DE2030145B2 未知
公开(公告)号：DE2030145B2
公开(公告)日：1974-03-21
申请号：DE2030145
申请日：1970-06-18
申请人： SIEMENS AG, 1000 BERLIN U. 8000 MUENCHEN
发明人： GILLITZER, ERWIN, DR.RER.NAT., 8024 DEISENHOFEN , THUST, PETER, DIPL.ING., 8000 MUENCHEN
IPC分类号： H01Q19/02 , H01Q19/14

40. 发明专利

DE2161893A1 未知
公开(公告)号：DE2161893A1
公开(公告)日：1973-06-20
申请号：DE2161893
申请日：1971-12-14
申请人： LICENTIA GMBH
发明人： MACIEJEWSKI KURT
IPC分类号： H01Q19/13 , H01Q19/14

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