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11. 发明专利

JPS5591202A BRANCHING FILTER DEVICE 失效
公开(公告)号：JPS5591202A
公开(公告)日：1980-07-10
申请号：JP16606878
申请日：1978-12-28
申请人： MITSUBISHI ELECTRIC CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： KUMAZAWA HIROYUKI , OOKUBO KUNITO , WATANABE NORIAKI
IPC分类号： H01Q13/02 , H01P1/213
摘要： PURPOSE:To ensure the processing with the electric performance taken mainly into consideration as well as facilitate the control by inserting the waffle iron filter into the sheath structure. CONSTITUTION:Guide box 11 of the sheath structure is connected to electromagnetic horn 1 via soldering, and the waffle iron filter formed into the block shape is inserted into box 11 to be pressed by connecting waveguide 9 via screws. The thermal strain caused by the soldering given between horn 1 and box 11 can be controlled in a high accuracy by giving the discharge process or the like after soldering. For this branching filter device, the electric performance can be mainly taken into consideration in processing since the mechanical strength of the flange attachment or the like is not required.

12. 发明专利

JPS5582507A ELECTROMAGNETIC WAVE TRANSMISSION LINE 失效
公开(公告)号：JPS5582507A
公开(公告)日：1980-06-21
申请号：JP15699578
申请日：1978-12-18
申请人： MITSUBISHI ELECTRIC CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： YASAKA TETSUO , KUMAZAWA HIROYUKI , HONMA YOSHIHIRO , KATAKI TAKASHI
IPC分类号： H01P1/06 , H01Q3/04 , H01Q13/02
摘要： PURPOSE:To reduce the leakage electromagnetic waves over the entire frequency, by projecting the flat plate from the external wall of the horn at top side and connecting the cylinder to the tip of the flat plate so that the cylinder is located to the top side to this flat plate. CONSTITUTION:The joint is provided on the way of the cone horn, and the horn consists of the horn H2 at the top of cone and the horn H1 at external side. The external cylinder S encloses the horn H2 and is connected to the tip of the joint of the horn H1, and space is provided between the inner diameter of the cylinder S and the external wall of the horn H2. At the top, the cylinder which encloses the horn H2 and is shorten than the cylinder S is provided. The flat plate is projected from the external wall of the horn H2 and it is connected to the tip of the flat plate so that the cylinder S is at the top. Thus, leaked electromagnetic waves can be reduced over the full frequency.

13. 发明专利

JPS5560307A BRANCHING FILTER 失效
公开(公告)号：JPS5560307A
公开(公告)日：1980-05-07
申请号：JP13241678
申请日：1978-10-27
申请人： MITSUBISHI ELECTRIC CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： KUMAZAWA HIROYUKI , WATANABE NORIAKI , OOKUBO KUNITO
IPC分类号： H01P1/213 , H01Q13/02
摘要： PURPOSE:To improve inter-frequency separative power by providing a series resonator, which prevents a frequency lower than that to be separated at a fixed coupling hole, in contact with the fixed hole. CONSTITUTION:Intermediate-frequency series resonator 8 with low-pass filter 7 and spacer 9 is provided with series resonator 10 resonating at a lower frequency through spacer 11 whose thikness is so selected that contact between resonators 8 and 10 is prevented not to increase reflection. A coupling hole for an intermediate frequency is considered to be shorted in terms of a lower frequency and leakage of the lower frequency is eliminated. In this case, the addition of resonator 10 never results in that effects of filter 7 and the series resonator for a higher frequency are lost.

14. 发明专利

JPS5481056A VARIABLE POWER DISTRIBUTOR 失效
公开(公告)号：JPS5481056A
公开(公告)日：1979-06-28
申请号：JP14822477
申请日：1977-12-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KUMAZAWA HIROYUKI , KAGOSHIMA KENICHI , UENO KENJI , SUGAI TAKASHI
IPC分类号： H01P1/17 , H01P5/04 , H01P5/12 , H01P5/16
摘要： PURPOSE:To divide input power at any ratio neither using a dielectric plate and phase shifter of a ferrite nor moving waveguide system at an input terminal side (transmitter side) and output terminal side (antenna element side). CONSTITUTION:Rectangular waveguides 15 and 17, twist waveguide 16 with several steps, rectangle-to-circle converting waveguide 14, circular waveguide 1, and cross polarization discriminators 3 and 4 are arranged coaxially in sequence with rotary gap 19 interposed between circular waveguide 1, and cross polarization discriminators 3 and 4. Then, the variable power distributor is so constituted that rectangle-to-circle converting waveguide 14 and circular waveguide 1, rectangular waveguides 15 and 17 through twist waveguide 16 with steps, and cross polarization discriminators 3 and 4 through rotary gap 19 will rotate relatively.

15. 发明专利

JPS5225546A DOUBLE RESONANT RING TYPE WAVEEDIVIDER 失效
公开(公告)号：JPS5225546A
公开(公告)日：1977-02-25
申请号：JP10115775
申请日：1975-08-22
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： YAMADA KUNIKATSU , OOTOMO ISAO , KUMAZAWA HIROYUKI
IPC分类号： H01P1/213
摘要： PURPOSE:To simplify the structure together with improving the performance of the amplitude characteristics and realizating the simple adjustment.

16. 发明专利

JPH01188004A FREQUENCY SELECTING PLATE 失效
公开(公告)号：JPH01188004A
公开(公告)日：1989-07-27
申请号：JP956488
申请日：1988-01-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ABE HIDEHIKO , KONDO AKIRA , KUMAZAWA HIROYUKI
IPC分类号： H01Q15/14
摘要： PURPOSE:To attain light weight without losing electric characteristics such as insertion loss and scttering by selecting a face of a 1st dielectric substance larger than the face of a 2nd dielectric sheet and providing a dielectric spacer only to a part limited by the face of the 2nd dielectric sheet. CONSTITUTION:Since an incident area 14 of a transmission wave is sufficiently smaller than a projection area 15 of a reflected wave, the incident area 14 of the transmission wave is surrounded by a peripheral support frame 12. No dielectric spacer 11 is provided on a part at the outside of the support frame 12 and the dielectric sheet 9 for the part is omitted and only a reinforcement member 16 to support the dielectric sheet 9 of the projection area 15 is installed. The transmission wave transmits through the dielectric sheets 9 on both the faces, but the reflected wave, as shown in a path 7, is reflected in the sheet face mostly on the reflector and radiator side and the other sheet face does not almost contribute to the reflecting characteristic. Thus, even when the dielectric sheet 9 and the dielectric spacer 11 for the part are omitted, the reflection characteristic is not lost.

17. 发明专利

JPS6317254B2 失效
公开(公告)号：JPS6317254B2
公开(公告)日：1988-04-13
申请号：JP9908781
申请日：1981-06-27
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KUMAZAWA HIROYUKI , ANDO MAKOTO , UENO KENJI
IPC分类号： H04B7/15 , H04B7/204

18. 发明专利

JPS58151709A FEED SYSTEM OF MULTI-BEAM ANTENNA 失效
公开(公告)号：JPS58151709A
公开(公告)日：1983-09-09
申请号：JP3495982
申请日：1982-03-05
申请人： NIPPON TELEGRAPH & TELEPHONE , MITSUBISHI ELECTRIC CORP
发明人： KUMAZAWA HIROYUKI , UENO KENJI , WATANABE NORIAKI , ABE HISASHI
IPC分类号： H01Q21/24 , H01Q21/30 , H01Q25/00
摘要： PURPOSE:To feed double polarized waves which are orthogonal to each other to each radiating element, by multiplexing plural channels with use of a multiplexing device at the transmitter side and then demultiplexing the multiplexed channels by a polarized demultiplexing device at the side of a primary radiator. CONSTITUTION:The transmitters 611-6n2 transmit different channels f1-f2n within a band. The output of a transmitter part 1 is given to demultiplexing devices 711-7n1 and 712-7n2 which are connected to polarized demultiplexing devices 31-3n via 2 feeders 411 and 412. Then 2n units of channels comprising channels f1-fn and fn+1-f2n are successively demultiplexed by the devices 711- 7n1 and 712-7n2 in repsonse to the array of beams. The demultiplexed outputs are combined to the devices 31-3n to form polarized waves which are orthogonal to each other. These polarized waves are fed to radiating elements 51- 5n within a primary radiator 2.

19. 发明专利

JPS5857803A PRIMARY RADIATOR 失效
公开(公告)号：JPS5857803A
公开(公告)日：1983-04-06
申请号：JP15600081
申请日：1981-09-30
申请人： NIPPON TELEGRAPH & TELEPHONE , MITSUBISHI ELECTRIC CORP
发明人： UENO KENJI , KUMAZAWA HIROYUKI , HARUYAMA TETSUO , TAKAMATSU YASUO , KAMEO HIDEJI , ISHIDA OSAMI
IPC分类号： H01Q13/02 , H01P1/16 , H01P1/161 , H01P1/213
摘要： PURPOSE:To obtain a desired elliptic polarization rate even with a small sized aperture of an electromagnetic horn, by providing a high pass waveguide apart by a 1/4-wavelength from a coupling hole provided to a main waveguide of a branching filter, and branching and absorbing electromagnetic waves of a low frequency band. CONSTITUTION:A resonator element 12 which is series resonance state to electromagnetic waves fH of a high frequency band is fitted to a coupling hole 11 provided to a main waveguide 3, and a high pass waveguide 4 which cuts off electromagnetic waves fL in a low frequency band is provided apart by a distance, about 1/4 of the waveguide wavelength or its odd number of multiple, from the coupling hole 11. The waves of fL introduced from a square waveguide 1 to the main waveguide 3 are reflected at the waveguide 4, enter a branch waveguide 13 via the coupling hole 11 and are absorbed in an electromagnetic wave absorbing body 14. On the other hand, the waves of fH introduced to the main waveguide 3 are electrically short-circuited at the resonator element 12, reach the waveguide 4 without being affected with the coupling hole 11 and are introduced to a square waveguide 5.

20. 发明专利

JPS581338A MULTIBEAM COMMUNICATION SYSTEM 失效
公开(公告)号：JPS581338A
公开(公告)日：1983-01-06
申请号：JP9908781
申请日：1981-06-27
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KUMAZAWA HIROYUKI , ANDOU MAKOTO , UENO KENJI
IPC分类号： H04B7/15 , H04B7/204
摘要： PURPOSE:To increase service areas by switching frequencies of an earth station in an area, where a beam to be irradiated with varies according to variation in the attitude of a satellite, according to the frequency of the beam. CONSTITUTION:When the attitude of a satellite 7 varies, the direction and extent of the variation are detected by a satellite attitude variation detector10, whose detection signal is sent to an earth station 12 through a citcuit 11. From this signal, which frequency (fa or fb) of the emitted beam 8 or 9 of the satellite 7 is suitable for the earth station 12 is judged. When it is judged to be the beam 9, a switch 13 performs switching to a corresponding transmitter and receiver 14b between transmitter and receivers 14a and 14b. Thus, switching to the frequency of an intenser beam is carried out to increase service areas based upon a multibeam mode.

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