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41. 发明专利

JPS561641A CROSS POLARIZATION COMPENSATING DEVICE 失效
公开(公告)号：JPS561641A
公开(公告)日：1981-01-09
申请号：JP7768979
申请日：1979-06-20
申请人： MITSUBISHI ELECTRIC CORP , KOKUSAI DENSHIN DENWA CO LTD
发明人： INAGAKI KAZUNORI , YUUKI HIRONORI , ENDOU SHIZUO , YOKOYAMA MIKIO , TAKEDA FUMIO , ISHIDA OSAMI , KANITANI SHIYOUJIROU , BETSUDAN SHINICHI , YOSHIKAWA YOSHIHIKO
IPC分类号： H04J11/00 , H04B7/00
摘要： PURPOSE:To increase the life time of the compensating device as well as reduce the fault frequency, by installing the rainfall discriminating control unit and then actuating the compensating device only in case the interference wave occurs to the output of the polarizer which passed through the polarization converting circuit. CONSTITUTION:The circular polarized waves A and B received at antenna 1 after passing through the rainfall region are received in the form of the opposite-turning oval polarized waves to each other. And waves A and B are isolated from each other via transmission/reception group branching filter 2, polarized wave converting circuit 3 and polarizer each to be taken out at terminals 10 and 11 via branching filter 9, couplers 5 and 5, and branching filter 9 each. In this case, the oval polarized wave output passed through polarizer 4 and branching filter 9 is supplied to rainfall discriminating control unit 15. And compensating control unit 13 is operated with the output of unit 15. Unit 13 extracts the amplitude information of each polarized wave, and then gives the control to variable attenuators 6 and 7 plus converting circuit 3 each.

42. 发明专利

JPS54116865A SURFACEEWAVE EXCITING DEVICE 失效
公开(公告)号：JPS54116865A
公开(公告)日：1979-09-11
申请号：JP2419378
申请日：1978-03-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： KANITANI SHIYOUJIROU , TAKEDA FUMIO , ISHIDA OSAMI
IPC分类号： H01P1/04 , H01P1/165 , H01P3/16 , H01P5/08
摘要： PURPOSE:To miniaturize a device and also to simplify the matching of the surface- wave excitation device by using a tapped support tool, a circular tapped waveguide and a tapped exciter. CONSTITUTION:Dielectric bar 3 and tapped support tool 6 are set and connected together, and this support tool 6 is screwed into circular tapped waveguide 7. Therefore, support tool 6 and waveguide 7 can be fitted easily and tightly with high precision. In this constitution, the screw parts act to focus energy on the center part of waveguide 7 and, consequently, bar 3 of a low specific dielectric constant can be used, so that the matching will be simplified. Through the action of the groove of exciter 8, a radiation loss becomes small in the same way, thereby realizing its miniaturization. In addition, the same effect can also be obtained by making bar 3 mentioned above and support tool 6 in one.

43. 发明专利

JPS54105447A BRANCHING FILTER 失效
公开(公告)号：JPS54105447A
公开(公告)日：1979-08-18
申请号：JP1213078
申请日：1978-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA FUMIO , ISHIDA OSAMI , KANITANI SHIYOUJIROU
IPC分类号： H01P5/16 , H01P1/211 , H01P1/213
摘要： PURPOSE:To simplify constitution, and also to improve VSWR characteristics by making the pressure plug of a corrugate groove at a coaxial line part into a waffle iron filter and by providing the corrugate groove to the inner wall of an exclusive- use waveguide. CONSTITUTION:Pressure plug 2 of corrugate groove 3 to be provided to the coaxial line part is deformed into shape 50 to form coaxial line type waffle iron filter 7, and the inner wall of exclusive-use circular waveguide 4 is provided newly with corrugate groove 3 whose admittance Yc shows inductive susceptance to high-frequency wave (fH). In the branching filter of this constitution, filter 7 operates when (fH) leaks to the coaxial line, and then inhibits all mode waves of (fH) from passing through, so that the need for providing filter 7 to rectangular waveguide 6 of coaxial line type polarizer 8 will be eliminated. As a result, branching filter 8 branching low-frequency wave (fL) is simplified and matching becomes easy, thereby obtaining excellent VSWR characteristics.

44. 发明专利

JPS5432950A CORRUGATE CONICAL HORN 失效
公开(公告)号：JPS5432950A
公开(公告)日：1979-03-10
申请号：JP9920177
申请日：1977-08-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA FUMIO , KANITANI SHIYOUJIROU , ISHIDA OSAMI
IPC分类号： H01Q13/02
摘要： PURPOSE:To prevent the deterioration of the radiation directional pattern in the high-frequency band by providing plural rings and controlling them so that they may form a stopping filter in the corrugate groove entrance part at the high frequency.

45. 发明专利

JPS5397719A INTERFERENCE WAVE OFFSET CIRCUIT 失效
公开(公告)号：JPS5397719A
公开(公告)日：1978-08-26
申请号：JP1282677
申请日：1977-02-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA FUMIO , ISHIDA OSAMI , KANITANI SHIYOUJIROU , AOKI KATSUHIKO
IPC分类号： H01Q13/00 , H01P1/00 , H01Q1/00 , H04J11/00
摘要： PURPOSE:To reduce half the number of the variable phase shifter and the variable attenuator necessary for the offset of the interference wave, by controlling both the 90 deg. phase difference plate and the 180 deg. phase difference plate. Thus, the circuit constitution can be simplified.

46. 发明专利

JPS5275157A WAVE FILTER 失效
公开(公告)号：JPS5275157A
公开(公告)日：1977-06-23
申请号：JP15133875
申请日：1975-12-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA FUMIO , KANITANI SHIYOUJIROU
IPC分类号： H01P1/211 , H01P1/212
摘要： PURPOSE:To realize a wave filter which features breaking property against higher wave with low loss by providing a number of corrugate grooves of plural kinds featuring high pass band and breaking property into the waveguide of waveguide-type low-range filter of microwave or milliwave band.

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