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1. 发明专利

JPS5498101A REFLECTION PREVENTING UNIT 失效
公开(公告)号：JPS5498101A
公开(公告)日：1979-08-02
申请号：JP424178
申请日：1978-01-20
申请人： TDK ELECTRONICS CO LTD , SUETAKE KUNIHIRO
发明人： SUETAKE KUNIHIRO , ISHINO TAKESHI
IPC分类号： H01Q17/00 , H04B15/00
摘要： PURPOSE:To prevent an electromagnetic wave from being reflected from an iron tower, a bridge, etc., by covering conductive bars, which are constituents of the iron tower, the bridge, etc., with a ferrite cylinder to enhance impedance. CONSTITUTION:Reflection prevention unit 1 which is arranged around iron pipe 2 consists of semicylindrical ferrite half bodies 3 and 4 which can unite with each other, and conductive foil 5 such as aluminum foil is fitted to the inside circumference face of unit 1. Since the surface impedance becomes high because materials having a high electromagnetic wave absorption characteristic are used as the ferrite forming ferrite half bodies 3 and 4, the current is flowed little, and as a result, the reflected electromagnetic wave is reduced. It is sufficient for this reflection prevention unit if the circumference of conductors of the iron tower, the bridge, etc., is surrounded by the ferrite which has a high electromagnetic wave absorption characteristic, and the form of this unit may be selected properly as desired.

2. 发明专利

JPS525936A WAVE DISTURBANCE SUPPRESSED STRUCTURE 失效
公开(公告)号：JPS525936A
公开(公告)日：1977-01-18
申请号：JP8093875
申请日：1975-07-02
申请人： YAMAMOTO MORIYUKI , MIYAZAKI HIROSHI , SUETAKE KUNIHIRO , SHIMIZU YASUTAKA
发明人： YAMAMOTO MORIYUKI , MIYAZAKI HIROSHI , SUETAKE KUNIHIRO , SHIMIZU YASUTAKA
IPC分类号： E04H1/00 , H05K9/00
摘要： PURPOSE:To effectively suppress wave disturbance by attenuating reflected wave directed in the ground direction.

4. 发明专利

JPS513712A 失效
公开(公告)号：JPS513712A
公开(公告)日：1976-01-13
申请号：JP7404674
申请日：1974-06-28
申请人： SUETAKE KUNIHIRO , OTSUKA TETSUHIRO , MORIGAMI TAKEYASU , ISHIZAKA MAKOTO
发明人： SUETAKE KUNIHIRO , OOTSUKA TETSUHIRO , MORIGAMI TAKEYASU , ISHIZAKA MAKOTO
IPC分类号： H04N5/268 , H04M11/00 , H04N7/00 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/15 , H04N7/173

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