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81. 发明专利

JP2002513231A 失效
公开(公告)号：JP2002513231A
公开(公告)日：2002-05-08
申请号：JP2000546418
申请日：1999-04-19
IPC分类号： H01Q19/06 , H01Q3/14 , H01Q5/00 , H01Q15/08 , H04B7/185

82. 发明专利

JP3269458B2 失效
公开(公告)号：JP3269458B2
公开(公告)日：2002-03-25
申请号：JP19066998
申请日：1998-07-06
IPC分类号： G01S7/03 , G01S13/93 , H01Q1/32 , H01Q3/12 , H01Q3/14 , H01Q13/28 , H01Q19/06 , H01Q23/00 , H04B1/38

83. 发明专利

JP2002043999A GROUND TERMINAL FOR SATELLITE COMMUNICATION BY ORBITING SATELLITE 失效
公开(公告)号：JP2002043999A
公开(公告)日：2002-02-08
申请号：JP2000225738
申请日：2000-07-26
申请人： TOSHIBA CORP
发明人： OGAWA TAKANARI , MAEDA HIROAKI
IPC分类号： H01Q19/06 , H01Q1/12 , H01Q3/14 , H04B7/155
摘要： PROBLEM TO BE SOLVED: To provide a ground terminal that makes a motion of tracking an orbiting satellite efficient and saves the power consumption. SOLUTION: A mode is discriminated (STEP 41), when a mode A or C (for one satellite tracking period) is detected, feeds 16, 17 are maintained on the spot and tracking is conducted under the control of an azimuth axis and an elevation axis (STEP 42). Whether or not the tracking is continued at a position of the feed tracking at present is discriminated (STEP 43), and when the tracking is not maintained, the feed is gradually moved toward the center of a guide rail 20 (STEP 44). In this case, a distance R between the tracking feed and the non-tracking feed is obtained, and whether or not the distance R is within a specified distance is discriminated (STEP 45), and the position of the non- tracking feed is gradually moved in matching with the motion of the tracking feed so that both the feeds are the specified distance or over apart (STEP 46). The processing above is repeated until the mode A or C is finished.

84. 发明专利

JP2000244237A ANTENNA DEVICE AND TRANSMISSION/RECEPTION WAVE MODULE 失效
公开(公告)号：JP2000244237A
公开(公告)日：2000-09-08
申请号：JP36631999
申请日：1999-12-24
申请人： MURATA MANUFACTURING CO
发明人： YAMADA HIDEAKI , NAKAMURA FUMINORI , TANIZAKI TORU , NISHIYAMA TAIYO
IPC分类号： H01Q19/06 , H01Q3/14
摘要： PROBLEM TO BE SOLVED: To provide an antenna device capable of suppressing the change of the gain at the beam scanning due to the displacement of a primary radiator against a dielectric lens and executing a search with a uniform gain over a wide angle range. SOLUTION: In a primary radiator, a position dislocated from the optical axis of a dielectric lens 2 is set to be the focal plane of the dielectric lens 2. The primary radiator is made away from the focal plane when the primary radiator comes on the optical axis. Thus, a gain change due to the change of aperture efficiency and aberration due to dislocation from the optical axis like the 1a and 1c (shown be Figure) is suppressed. Thus, the fluctuation of the aperture efficiency and the aberration of the dielectric lens 2 due to the displacement of the primary radiator can be controlled differently from the case of displacing only the focal plane of the primary radiator.

85. 发明专利

JP3014106B2 失效
公开(公告)号：JP3014106B2
公开(公告)日：2000-02-28
申请号：JP23728489
申请日：1989-09-14
IPC分类号： H01Q3/00 , H01Q3/14 , H01Q21/24

86. 发明专利

JP2000022423A ANTENNA SYSTEM AND TRANSMITTER-RECEIVER 失效
公开(公告)号：JP2000022423A
公开(公告)日：2000-01-21
申请号：JP18950798
申请日：1998-07-03
申请人： MURATA MANUFACTURING CO
发明人： TANIZAKI TORU , TAGUCHI YOSHINORI
IPC分类号： H01Q19/06 , G01S7/03 , G01S7/28 , G01S13/44 , H01P5/04 , H01P5/08 , H01P5/18 , H01Q3/12 , H01Q3/14 , H01Q13/02 , H01Q13/28 , H01Q19/28 , H01Q25/04
摘要： PROBLEM TO BE SOLVED: To easily widen an angle measurement range in the case of forming a plurality of beams for detecting an object such as a mono-pulse radar by deflecting each direction of the beams at the same time without increasing the size of the system. SOLUTION: A moving part 31 is provided with pluralities of primary radiators 13a, 13b, 13c and moving part side transmission lines (dielectric strips for an NRD guide) 11a, 11b, 11c that respectively couple with the primary radiators 13a, 13b, 13c, a stationary part is provided with dielectric lenses 18a, 18b, 18c whose focal planes are at positions of the primary radiators 13a, 13b, 13c and stationary part transmission lines (dielectric strips for an NRD guide) 12a, 12b, 12c that couple respectively with the moving part side transmission lines. Then the beams are simultaneously tilted by displacing the moving part 31.

87. 发明专利

JP2727830B2 失效
公开(公告)号：JP2727830B2
公开(公告)日：1998-03-18
申请号：JP31514991
申请日：1991-11-05
申请人： NIPPON DENKI KK
发明人： MITSUI KAZUO
IPC分类号： H01Q3/01 , H01Q3/14 , H01Q3/20 , H01Q15/14 , H01Q19/10

88. 发明专利

JPH07118608B2 失效
公开(公告)号：JPH07118608B2
公开(公告)日：1995-12-18
申请号：JP14266593
申请日：1993-05-21
申请人： NIPPON ELECTRIC CO
发明人： IWATA RYUICHI
IPC分类号： G01S7/03 , H01Q3/14

89. 发明专利

JPH06334426A RADAR ANTENNA 失效
公开(公告)号：JPH06334426A
公开(公告)日：1994-12-02
申请号：JP14266593
申请日：1993-05-21
申请人： NEC CORP
发明人： IWATA RYUICHI
IPC分类号： G01S7/03 , H01Q3/14
摘要： PURPOSE:To obtain the radar antenna able to reciprocate at a high speed laterally a far beam narrow in the lateral direction and wide in the longitudinal direction. CONSTITUTION:A reflecting mirror 1 of a quadrilateral long laterally is parabolic in a cross section in the short direction. A radio wave radiation wall face of a waveguide slot array 2 is arranged while being directed in a face of the reflected mirror at a position roughly coincident with a focal point 4 of the reflecting mirror. A dielectric body 3 is a hollow cylinder and driven around a center axis 32 of an outer cylinder while a waveguide slot array is penetrated in the hollow part. The hollow part is cylindrical but its center axis is not coincident with the center axis 32 of the outer cylinder but tilted. A radio wave radiating from the waveguide slot array is bent in the lateral direction by a refraction of a dielectric body but reciprocated laterally in response to the turning of the dielectric body and a fan beam is emitted from a laterally long reflecting mirror while being reciprocated at a high speed laterally.

90. 发明专利

JPH03101403A METHOD FOR ADJUSTING PLANE OF POLARIZATION FOR RECEIVER 失效
公开(公告)号：JPH03101403A
公开(公告)日：1991-04-26
申请号：JP23728489
申请日：1989-09-14
申请人： FUJITSU LTD
发明人： TSURUMAKI TAKAYOSHI
IPC分类号： H01Q3/00 , H01Q3/14 , H01Q21/24
摘要： PURPOSE:To improve the performance of adjustment work and of practical application by receiving only either of horizontal and vertical polarized wave signals so as to apply proper plane of polarization adjustment even to other polarized wave. CONSTITUTION:A plane of polarization adjustment section 1 is turned and its turning is stopped at a position where a plane of polarization is matched with either of horizontal and vertical polarized wave signals and a scale of an angle scale member 5 is matched to a reference mark or reference member 8 provided to a plane of polarization adjustment section 1. Then the plane of polarization adjustment section 1 is turned from its angular position to a prescribed to a prescribed angular position represented by the angle scale member 5 to adjust the plane of polarization plane to other polarized wave signal mechanically. Since the plane of polarization adjustment is executed even to other plane of polarization signal by receiving only either of the polarized wave signals in this way, the adjustment is made simple and easy.

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