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1. 发明专利

JPS5759681B2 失效
公开(公告)号：JPS5759681B2
公开(公告)日：1982-12-16
申请号：JP10636375
申请日：1975-09-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKANO TADASHI , ISHIDA NORIAKI , NARA TAKEJI , YAMADA YOSHIFUSA
IPC分类号： H01Q3/12 , H01Q3/00 , H01Q3/20

2. 发明专利

JPS5230142A VARIABLE BEAM WIDTH ANTENNA 失效
公开(公告)号：JPS5230142A
公开(公告)日：1977-03-07
申请号：JP10636375
申请日：1975-09-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKANO TADASHI , ISHIDA NORIAKI , NARA TAKEJI , YAMADA YOSHIFUSA
IPC分类号： H01Q3/12 , H01Q3/00 , H01Q3/20
摘要： PURPOSE:To enable to change beam width continuously by adjusting effective aperture area.

3. 发明专利

JPS5610702A MOBILE TYPE ANTENNA DEVICE 失效
公开(公告)号：JPS5610702A
公开(公告)日：1981-02-03
申请号：JP8505379
申请日：1979-07-06
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： SATOU IKUO , KOSUKEGAWA KAZUO , TAKANO TADASHI , NARA TAKEJI
IPC分类号： H01Q3/08 , H01Q19/02 , H01Q19/19
摘要： PURPOSE:To increase the directional control range of the antenna for the mobile antenna device which is used for the satellite communication, by selecting the bend angle to those values other than 90 deg. for the beam which forms the beam wave guide. CONSTITUTION:Ducts 42 and 43 combined together with bearing 44 are attached to car body 21 or the like via bearing 45. These bearings 45 and 44 are located so that angle alpha may be formed between their center axes 13' and 14', and at the same time angle beta is formed between axis 14' and mirror axis 54 of the main reflector each. Then the beam wave guide is formed with a primary radiator 27, curved reflector 48 and plane reflector 49 each; and the beam is radiated along axis 54 and with formation of angles alpha and beta. Here if angle alpha is set smaller than 90 deg. with angle beta set larger than 90 deg. respectively, reflector 26 is turned upward to increase the angle at which reflector 26 hits duct 42 or driving part 53 and others. Thus the mobile range can be increased. Furthermore, the undesired control region lower than the horizontal direction can be eliminated, thus increasing the wave angle.

4. 发明专利

JPS5230139A ANTENNA UNIT WITH VARIABLE BEAM WIDTH 失效
公开(公告)号：JPS5230139A
公开(公告)日：1977-03-07
申请号：JP10636075
申请日：1975-09-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NARA TAKEJI , ISHIDA NORIAKI , TAKANO TADASHI , YAMADA YOSHIFUSA
IPC分类号： H01Q3/18 , H01Q25/00
摘要： PURPOSE:To catch electric wave of a distant station rapidly and easily by changing an antenna beam width caused by variable opening diameter of the primary radiator of the open surface antenna.

5. 发明专利

JPS5846893B2 JPS5846893B2 - 失效
公开(公告)号：JPS5846893B2
公开(公告)日：1983-10-19
申请号：JP10636475
申请日：1975-09-01
申请人： Nippon Telegraph & Telephone
发明人： TAKANO TADASHI , ISHIDA NORIAKI , NARA TAKEJI , YAMADA YOSHIFUSA
IPC分类号： H01Q3/00 , H01Q3/26 , H04B7/15 , H04B7/155 , H04B7/185
CPC分类号： H04B7/185

6. 发明专利

JPS5851632A RADIO RELAY SYSTEM 失效
公开(公告)号：JPS5851632A
公开(公告)日：1983-03-26
申请号：JP14963781
申请日：1981-09-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOOYAMA HIDEKI , OKAMOTO SHIGEHARU , NOJIMA TOSHIO , NAKAJIMA NOBUO , NARA TAKEJI
IPC分类号： H04B7/15 , H04B1/52 , H04B7/155
摘要： PURPOSE:To eliminate the blocking of a relay function, by adjusting a phase amplitude adjusting circuit so that the correlation between a detected signal and a specific modulation signal can be zeroed and cancelling a detour signal between transmission and reception antennas. CONSTITUTION:An output signal of a synthesizer 4 is modulated at a modulator 7 and a modulation signal generator 8, amplified 3 for relay and transmitted via a branching filter 5 and a transmission antenna 2. A normal signal out of signals inputted to the amplifier 3 is not subject to a low frequency amplitude modulation, but an interference signal and a feedback signal are subject to the low frequency amplitude modulation. A signal branched at a reception input branching filter 9 is envelope-detected 10 and components in correlation with the modulation signal from the generator 8 out of detected outputs are specified for the relation of phase and amplitude of the interference signal versus the feedback signal. When the correlation component is zero, both the signals are made to the opposite phase equal amplitude.

7. 发明专利

JPS5534550A CARRMOUNTING ANTENNA DEVICE 失效
公开(公告)号：JPS5534550A
公开(公告)日：1980-03-11
申请号：JP10700778
申请日：1978-09-02
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： SATOU IKUO , KAWAI MUTSUMI , KOSUKEGAWA KAZUO , TAKANO TADASHI , NARA TAKEJI , EGAMI SHIYUNICHIROU , OKAMOTO TERUYOSHI
IPC分类号： H01Q3/08 , H01Q19/19
摘要： PURPOSE:To realize the storage of the antenna into the car with no disassembling nor removal required for the main reflector in transport by using two mobile ducts plus two reflectors for coupling of the electric waves between the transmitter/receiver and the antenna. CONSTITUTION:Main reflector 26 is coupled to the car body via mobile duct 23 which turns by turning wheel bearing 24 plus mobile duct 22 which turns by another turning wheel bearing 25. These ducts 22 and 23 are hollow and function as the ducts for wave path 34 between the main reflector and transmitter/receiver 8 and 35. The electric wave radiated from primary radiator 27 located at the focus of offset paraboloid reflector 28 is reflected by reflector 28, plane reflector 29 and secondary reflector 30 each to reach reflector 26. At both the using and storage times reflector 26 can be set in an optional position or direction by means of bearings 24 and 25.

8. 发明专利

JPS5591205A SETTING DEVICE FOR ANTENNA DRIVING RANGE 失效
公开(公告)号：JPS5591205A
公开(公告)日：1980-07-10
申请号：JP16468078
申请日：1978-12-28
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： MIYATA YOSHIMITSU , MORI KOUICHI , TAKANO TADASHI , NARA TAKEJI , KAIZUKA TOSHIYUKI
IPC分类号： H01Q3/08 , H04B7/155
摘要： PURPOSE:To increase the driving range for the antenna by providing plural number of driving setting ranges in case the antenna driving enable range cannot be obtained with a pair of limit switches. CONSTITUTION:Cam attachment axle 7 is provided to shaft 6 of the antenna, and cam attachment groove 8 is provided to axle 7 for attachment of cam 9. While cam 9 presses limit switch 10 in accordnace with the rotation of shaft 6, and thus switch 10 is turned on at the zone where the driving enable range exists. At the same time, a little larger cam 9' is attached to other cam groove along with installation of limit switch 10'. Thus the double limit switches can be provided round the axle of the zone. In addition, cams 15-17 plus limit switches 11-14 are distributed properly toward the shaft and around the shaft, thus obtaining the limit signals corresponding to many zones.

9. 发明专利

JPS5230141A BEAM WIDTH VARIABLE ANTENNA OF ARIABLE FEEDING POSITION TYPE 失效
公开(公告)号：JPS5230141A
公开(公告)日：1977-03-07
申请号：JP10636275
申请日：1975-09-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIDA NORIAKI , TAKANO TADASHI , NARA TAKEJI , YAMADA YOSHIFUSA
IPC分类号： H01Q3/16 , H01Q3/18 , H01Q3/20
摘要： PURPOSE:To obtain an aperture antenna with variable beam width by sliding a primary radiator and changing feeding position.

10. 发明专利

JPS57193104A ANTENNA DEVICE 失效
公开(公告)号：JPS57193104A
公开(公告)日：1982-11-27
申请号：JP7883181
申请日：1981-05-25
申请人： NIPPON TELEGRAPH & TELEPHONE , MITSUBISHI ELECTRIC CORP
发明人： NARA TAKEJI , KAGOSHIMA KENICHI , KATAKI TAKASHI , HIRUKOI TAKASHI , AOKI KATSUHIKO
IPC分类号： H01Q13/02
摘要： PURPOSE:To keep the performance of an antenna over a wide band, by providing an electromagnetically shielding plate to cross a plane including the aperture of a horn, so as to pass through an electromagnetic wave incident between the end of the aperture and the shielding plate. CONSTITUTION:A metallic plate 4 as an electromagnetically shielding plate crosses a plane including the aperture of a horn 1 and is placed apart from the external circumference of the aperture. To provide a gap between the external circumference of the aperture and the metallic plate 4, the plate 4 is supported with supports 5a-5h. Through this constitution, electromagnetic waves radiated around a right angle of the aperture of the horn 1 are interfered at the plate 4. Thus, the radiation level in this direction can be lowered owing to the diffraction wave generated at the end of the plate 4. Since the electromagnetic wave which propagates to the back direction of the horn 1 and is made incident between the plate 4 and the external circumference of the aperture, propagates without reflection, the frequency characteristic is comparatively small and this performance can be kept over a broad band.

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