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41. 发明专利

JPH09107226A ANTENNA SYSTEM, ITS PRODUCTION, AND ITS DESIGN METHOD 失效
公开(公告)号：JPH09107226A
公开(公告)日：1997-04-22
申请号：JP26047495
申请日：1995-10-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： OTSUKA MASATAKA , ISODA YOJI , MATSUNAGA MAKOTO , KONISHI YOSHIHIKO , NAKAHARA SHINTARO
IPC分类号： H01Q3/26 , H01Q9/04 , H01Q13/08 , H01Q13/18 , H01Q21/00
摘要： PROBLEM TO BE SOLVED: To eliminate a metallic shielding plate which prevents unnecessary radiation from a feeder. SOLUTION: A conductor plane plate 36, a dielectric layer 38, a dielectric film 40, a dielectric layer 42, and a dielectric film 44 are laminated in order, and a radiation element 50 which is not fed from a feeder 48 is arranged on a radiation element 46 fed through the feeder 48. Since the line related to the feeder 48 forms a micro strip line where the dielectric layer 38 is sandwiched between the feeder 48 and the conductor plane plate 36 throughout in the lengthwise direction, the change from the micro strip line to a triplate line or the reverse change is eliminated, and the feed loss is reduced. The thickness of the dielectric layer 38 is made sufficiently thinner than the used wavelength to suppress the radiation from a discontinuous point on the micro strip line consisting of the feeder 48 and the conductor plane plate 36.

42. 发明专利

JPH08222940A ANTENNA SYSTEM 失效
公开(公告)号：JPH08222940A
公开(公告)日：1996-08-30
申请号：JP2512995
申请日：1995-02-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： OTSUKA MASATAKA , ISODA YOJI , NAKAHARA SHINTARO , MATSUNAGA MAKOTO , KONISHI YOSHIHIKO
IPC分类号： H01Q13/08 , H01Q9/04
摘要： PURPOSE: To reduce the size of radiation elements in the flat shaped antenna system in which the radiation elements are excited through electromagnetic coupling. CONSTITUTION: A coupling hole 16 is provided to a ground conductor plate 10 of a tri-plate line comprising two-layer dielectric base plates 2, 9, ground conductor plates 10, 11 and a feeder line 12 and a mechanism 15 to connect electrically the two ground conductor plates 10, 11 in the vicinity of the coupling hole 16 is provided. Furthermore, a short-circuit section 14 (short patch antenna) connecting one end of a radiation element 13 coupled with the feeder line 12 via the coupling hole 16 to ground is provided. Thus, the size of the short patch antenna is a half of the size of a patch antenna and undesired coupling is prevented by the connection mechanism 15.

43. 发明专利

JPH0682962B2 失效
公开(公告)号：JPH0682962B2
公开(公告)日：1994-10-19
申请号：JP27375287
申请日：1987-10-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISHIDA OSAMI , ISODA YOJI , MYAZAKI MORYASU , ASAO HIDEKI
IPC分类号： H01P1/208

44. 发明专利

JPH0618282B2 失效
公开(公告)号：JPH0618282B2
公开(公告)日：1994-03-09
申请号：JP26829386
申请日：1986-11-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISHIDA OSAMI , ASAO HIDEKI , ISODA YOJI , MYAZAKI MORYASU , TAKEDA FUMIO , MYAMOTO KAZUHIRO
IPC分类号： H01P1/16 , H01P3/13

45. 发明专利

JPH0614601B2 失效
公开(公告)号：JPH0614601B2
公开(公告)日：1994-02-23
申请号：JP2542486
申请日：1986-02-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISODA YOJI , MYAZAKI MORYASU , ISHIDA OSAMI , TAKEDA FUMIO
IPC分类号： H01P1/20 , H01P1/212 , H01P7/10

46. 发明专利

JPH0578201B2 失效
公开(公告)号：JPH0578201B2
公开(公告)日：1993-10-28
申请号：JP23421287
申请日：1987-09-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISODA YOJI , MYAZAKI MORYASU , ISHIDA OSAMI , TAKEDA FUMIO
IPC分类号： H01P1/20 , H01P1/212 , H01P7/10

47. 发明专利

JPH05235666A 失效
公开(公告)号：JPH05235666A
公开(公告)日：1993-09-10
申请号：JP3751492
申请日：1992-02-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAYAMA MASATOSHI , IKEDA YUKIO , ISODA YOJI , TAKAGI SUNAO
IPC分类号： H03F3/60 , H01P5/12 , H03F3/68
摘要： PURPOSE:To miniaturize a circuit by connecting a resistor whose one terminal is short-circuited in high frequency fashion to an input matching circuit, and thereby increasing the characteristic inpedance of an input side 1/4 wavelength distribution constant line and decreasing the line width. CONSTITUTION:Assumed the input impedance of a FET 3 as Zfi, and the characteristic impedance of an input side high impedance 1/4 wavelength distribution constant line 6 as ZO, impedance Zin1 observing the line 6 from an input terminal 1 side goes to ZO /Zfi. Equation I can be obtained assuming impedance observing two lines 6 from the terminal 1 as Zin. When a capacitor 5 is provided with sufficiently large capacity, relation expressed in equation II exists between the impedance Zin and the resistor R, and equation III is required to obtain matching with power source impedance 50OMEGA. Therefore, equation IV is required, and the impedance ZO of the line 6 is selected as shown in equation V by substituting equation I. Therefore, it follows that a distribution constant line with characteristic impedance of (R/(R-50)) times is used, and the circuit can thus be miniaturized.

48. 发明专利

JPH0373165B2 失效
公开(公告)号：JPH0373165B2
公开(公告)日：1991-11-21
申请号：JP27552985
申请日：1985-12-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： MYAZAKI MORYASU , ISHIDA OSAMI , ISODA YOJI , TAKEDA FUMIO
IPC分类号： H01P5/02 , H01P5/18

49. 发明专利

JPH02271656A MULTILAYERED MICROWAVE INTEGRATED CIRCUIT 失效
公开(公告)号：JPH02271656A
公开(公告)日：1990-11-06
申请号：JP9378489
申请日：1989-04-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： IKEDA YUKIO , TAKAGI SUNAO , URASAKI SHUJI , ISODA YOJI , MOCHIZUKI MITSURU , KIYONO KIYOHARU , SUEMATSU KENJI
IPC分类号： H01L25/18 , H01L25/065 , H01L25/07 , H01L27/00 , H01P3/08
摘要： PURPOSE:To prevent unnecessary electrical interference from being produced between an upper layer circuit and a lower layer circuit by shielding an electromagnetic field with a conductor layer by laminating said circuits with said conductor layer held between those circuits, said conductor layer being earthed keeping its state where it is insulated from parts of said circuits other than at least earthed portion of the same. CONSTITUTION:Circuits 2a, 2b of semiconductor substrates 1a, 1b are laminated with a conductor layer 7 held therebetween, the conductor layer 7 being earthed in its state where it is isolated from portions of said circuits other than at least earthed portions of the same. Accordingly, also when the circuit is operated in a microwave range, there are provided between the respective circuits and the earthed conductor layer 7 an electromagnetic field due to a current flowing through the upper layer circuit 2a and an electromagnetic field due to a current flowing through the lower layer circuit 2b. Hereby, there is eliminated electrical interference between the upper layer circuit 2a and the lower layer circuit 2b, and the upper and lower layer circuits 2a and 2b are connected at a connection line 4 so that desired operation is achieved as a whole. Hereby, there can be eliminated unnecessary electrical interference between the upper and lower layer circuits upon use in a microwave range.

50. 发明专利

JPH01303801A WAVEGUIDE TYPE DEMULTIPLEXER 失效
公开(公告)号：JPH01303801A
公开(公告)日：1989-12-07
申请号：JP13353788
申请日：1988-05-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISODA YOJI , MIYAZAKI MORIYASU , ASAO HIDEKI , ISHIDA OSAMI
IPC分类号： H01P1/213 , H01P1/207 , H01P11/00
摘要： PURPOSE:To minimize the number of parts, to facilitate the manufacture and to minimize the loss of a microwave by dividing a waveguide type demultiplexer symmetrically to the center along the same plane so that a main guidewave pipe and respective sub-guidewave pipes can be divided into two. CONSTITUTION:In a waveguide pipe type demultiplexer to provide a main waveguide pipe 31 composed of a hollow pipe and plural sub-waveguide pipes 34 and 35 protruded in the same plane direction from the side surface of each main waveguide pipe 31 to constitute band pass filters 32 and 33, the waveguide type demultiplexer is constructed to be divided symmetrically to the center line along the same plane so that the main waveguide pipe 31 and respective sub-waveguide pipes 34 and 35 can be divided into two. Thus, since the main waveguide pipe 31 and respective band pass filters 32 and 33 can be manufactured in a single body in the propagation direction of the microwave, the waveguide pipe type demultiplexer, which is small in the number of parts, facilitates the manufacture and small in the propagation loss, can be obtained.

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