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41. 发明专利

JPH10276001A ROTARY JOINT OF MICROWAVE TRANSMISSION AND RECEPTION PART 失效
公开(公告)号：JPH10276001A
公开(公告)日：1998-10-13
申请号：JP9476597
申请日：1997-03-27
申请人： NEW JAPAN RADIO CO LTD
发明人： KISANUKI IKURO , TOMITA MANABU
IPC分类号： H01P1/06 , H01P5/02
摘要： PROBLEM TO BE SOLVED: To simplify a structure and to provide a light-weight small-sized rotary joint of microwave transmission/reception part by directly connecting a motor for rotating an antenna part to a dielectric connected to a rotator in a rotary mechanism. SOLUTION: To a fixed waveguide 1, the thin and long dielectric 10 of an almost round bar shape is installed almost vertically to a magnetic field surface inside the tube of the fixed waveguide 1 from the rotator 4 so as to be passed through the fixed waveguide 1. One end of the dielectric 10 is connected to the antenna part. The other end of the dielectric 10 is connected to the motor 8 and the antenna part, the rotator 4 in the rotary mechanism 9 and a probe 2 are rotated. The rotary mechanism 9 is formed by the rotator 4, a bearing part 5, the motor 8 and a boss 12 for choke and the antenna part connected to the rotator 4 is rotated. Then, when microwaves are outputted, the microwaves are transmitted to the rotated antenna part and radiated in all directions. Thus, the fixed transmission/reception part of a pulse radar and the rotated antenna part are smoothly connected.

42. 发明专利

JPH10190303A WAVEGUIDE ROTARY JOINT DEVICE 失效
公开(公告)号：JPH10190303A
公开(公告)日：1998-07-21
申请号：JP34411896
申请日：1996-12-24
申请人： NEC CORP
发明人： CHIBA MASAKI
IPC分类号： H01P1/06
摘要： PROBLEM TO BE SOLVED: To surely expand the rotation range of a rotation side waveguide by the turning of a waveguide for relay. SOLUTION: For this device, the rotation side waveguide 14 is turnable through connectors 15 and 16 to a fixed side waveguide 12. In this case, the waveguide 13 for the relay is freely rotatably disposed between the fixed side waveguide 12 and the rotation side waveguide 14 and the connectors 15 and 16 are interposed between the two waveguides adjacent with each other among the waveguides 12-14 including the waveguide 13 for the relay.

43. 发明专利

JPH1098408A STRUCTURE OF ELECTRIC CONNECTION BETWEEN PLANE ANTENNA AND TRANSMITTER-RECEIVER 失效
公开(公告)号：JPH1098408A
公开(公告)日：1998-04-14
申请号：JP27175896
申请日：1996-09-20
申请人： NEC CORP
发明人： MINOWA YOSHIO
IPC分类号： H01P1/06 , H01Q1/24 , H01Q3/04 , H04B1/38 , H04B1/3822
摘要： PROBLEM TO BE SOLVED: To provide a structure for electric connection between a plane antenna and a transmitter-receiver where the length of a coaxial line is reduced to decrease the electric loss in the transmitter-receiver in which the plane antenna is turned around a turning shaft while making electric connection/disconnection. SOLUTION: A turnable coaxial connector is adopted for a center conductor 9, an insulator 10, and an outer conductor 11 connecting to an input output terminal 6 of the side of the plane antenna and a center conductor 15, an insulator 16, and an outer conductor 17 connecting to a coaxial connector 7 of the transmitter-receiver in a coaxial line connecting electrically the input output terminal 6 on a printed circuit board 4 in the inside of the plane antenna and an input output coaxial connector 7 of the transmitter-receiver. The coaxial connector is made up of a part of the plane antenna connection side and a part of the transmitter-receiver connection side, and each center conductor is in contact with a center conductor 20 on a same line of a turning shaft provided to both ends of each one side of the plane antenna and the transmitter- receiver.

44. 发明专利

JPH08288710A SLIDE TYPE FLEXIBLE WAVEGUIDE 失效
公开(公告)号：JPH08288710A
公开(公告)日：1996-11-01
申请号：JP11647495
申请日：1995-04-18
申请人： NIHON KOSHUHA CO LTD
发明人： MATSUO MUNEKAZU , INOUE JUICHI
IPC分类号： H01P1/06 , H01P3/14 , H01P11/00
摘要： PURPOSE: To obtain a flexible waveguide allowed to be optionally extended in its length direction and reduced at its conduction loss. CONSTITUTION: An waveguide to be used for a transmission system is divided into waveguides 2, 3 in a transmission direction and an inner waveguide 1 of which outside dimension is smaller than the aperture dimension of the waveguides 2, 3 is inserted into the waveguides 2, 3 on their divided part. Springs 4, 5 to be always brought into contact with the insides of the waveguides 2, 3 are formed on both the end parts of the waveguide 1.

45. 发明专利

JPH08181503A CONTROL SIGNAL TRANSMISSION SYSTEM FOR ROTARY ANTENNA SYSTEM 失效
公开(公告)号：JPH08181503A
公开(公告)日：1996-07-12
申请号：JP31788994
申请日：1994-12-21
申请人： NIPPON ELECTRIC ENG
发明人： FURUKAWA SHIGERU
IPC分类号： G02B6/24 , G01S7/03 , G02B6/42 , H01P1/06 , H01P3/12
摘要： PURPOSE: To obtain a control signal transmission system for a rotary antenna system in which effect to RF characteristic is prevented with a simple structure. CONSTITUTION: In the rotary antenna system comprising a rotary section 11 with an antenna 10 mounted thereon, a stationary part 12 on which the rotary section 11 is mounted freely turnably, and a rotary support section 13 supporting the rotary section 11 freely tunrably to the stationary part 12, a multiple gravity center coaxial transmission line 14 is provided between the rotary section 11 and the stationary part 12. The multiple gravity center coaxial transmission line 14 is isolated from the rotary support section 13 with a very small gap. Furthermore, an optical fiber cable is contained in an innermost conductor of the multiple gravity center coaxial transmission line 14 while being isolated with a very small gap.

46. 发明专利

JPH0865002A ARM INCORPORATED TYPE CS ANTENNA 失效
公开(公告)号：JPH0865002A
公开(公告)日：1996-03-08
申请号：JP19571394
申请日：1994-08-19
申请人： FUJITSU GENERAL LTD
发明人： NAGAREGO MASAHIKO
IPC分类号： H01P1/06 , H01P1/10 , H01P1/165 , H01Q3/01 , H01Q13/02 , H01Q23/00
摘要： PURPOSE: To provide an arm incorporated type CS antenna for performing polarization plane changeover with simple constitution in an antenna composed of plural polarization planes for receiving CS broadcasting radio waves. CONSTITUTION: This antenna is composed of a feed horn 1 for receiving radio waves, a CS converter 2 attached to the read part and an arm 3 for supporting the feed horn 1 and the CS converter 2. The housing of the CS converter 2 is integrally formed with the arm 3 and the feed horn 1 is fitted to the front surface of the CS converter 2 so as to rotate with the center of a waveguide 1b passing through the feed horn 1 as an axis. The rotation angle of the feed horn 1 is graduated in the corresponding part of the front surface outer periphery 2a of the CS converter 2 and the outer peripheral part 1a of the feed horn 1 and the polarization planes of the radio waves to be received is switched by the rotation of the feed horn 1.

47. 发明专利

JPH07202557A RADICAL WAVEGUIDE TYPE BEAM TILT ANTENNA EQUIPMENT 失效
公开(公告)号：JPH07202557A
公开(公告)日：1995-08-04
申请号：JP33671993
申请日：1993-12-28
申请人： TOSHIBA CORP
发明人： SAWADA HISASHI , IWASAKI HISAO
IPC分类号： H01Q3/04 , H01P1/06 , H01Q13/22
摘要： PURPOSE:To miniaturize a motor, to reduce the thickness of the whole of an antenna equipment, to reduce the power consumption, to improve the reliablity, and to reduce the cost by rotating and driving an upper conductor to a lower conductor to sufficiently drive the antenna with the motor of small torque and eliminating a need of rotary joints. CONSTITUTION:Different diameters are given to cylinders of an upper conductor 11 of a radial waveguide and a lower conductor 13 of a radial waveguide, and the cylinder part or the lower conductor 13 is inserted into that of the upper conductor 11. The peripheral wall part on the side face of the upper conductor 11 is provided with a recessed part 23, and that of the lower conductor 13 is provided with a projecting part 25, and the projecting part 25 is engaged with the recessed part 23 to freely rotatably connect the upper conductor 11 and the lower conductor 13, and a resonance cavity is formed inside. A motor 19 and the lower conductor 13 are fixed by a fixing plate 9, and a revolving shaft 7 of the motor 19 is fixed to a roll 5, and the roll is engaged with the side face of the upper conductor 11 to rotate the upper conductor 11.

48. 发明专利

JPH07122903A ROTARY JOINT 失效
公开(公告)号：JPH07122903A
公开(公告)日：1995-05-12
申请号：JP22424794
申请日：1994-08-25
申请人： SHIMADA PHYSICAL CHEM IND CO
发明人： YANO MASAAKI , FUJIWARA HIROAKI
IPC分类号： H01P1/06
摘要： PURPOSE:To enable electrical contact by an object frequency by arranging the disk part of a first external conductor and the disk part of a second external conductor while holding a prescribed clearance for securing electrical capacitive coupling. CONSTITUTION:A disk-like rotary side external conductor 36 composed of conductive metal is fixed to a connector 32 on the side of a converter and a disk-like fixed side external conductor 38 composed of the conductive metal whose edge part is raised so as to surround the outer peripheral side of the rotary side external conductor 36 is fixed to the connector 34 on the side of a tuner. The prescribed clearance 42 for securing the electrical capacitive coupling between the rotary side external conductor 36 and the fixed side external conductor 38 is held between opposing surfaces on the outer peripheral side of the rotary side external conductor 36 and the inner peripheral side of the fixed side external conductor 38 and bearings 40 are assembled. The rotary side external conductor 36 and the fixed side external conductor 38 are constituted as a mechanically independent non-contact type and are mutually in a free relative rotation mode. Thus, the electrical contact and mechanical contact are held.

49. 发明专利

JPH0685481B2 失效
公开(公告)号：JPH0685481B2
公开(公告)日：1994-10-26
申请号：JP22826084
申请日：1984-10-30
申请人： SONY CORP
发明人： KOMATSU YASUTOSHI
IPC分类号： H03C7/02 , G11B5/02 , H01F38/14 , H01P1/06 , H01P5/02 , H01P5/12 , H01P5/18

50. 实用新型

JPH0546101U 失效
公开(公告)号：JPH0546101U
公开(公告)日：1993-06-18
申请号：JP9430091
申请日：1991-11-18
IPC分类号： H01P1/06 , H01R39/00

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