发明名称 |
High-frequency communication apparatus and method of manufacturing the same |
摘要 |
A high-frequency communication apparatus has a case containing a transmitter-receiver including circuit elements. A functional structure capable of confining radiation energy radiated by unnecessary radio wave source to prevent the radiation energy from interfering with the operations of the transmitter-receiver is formed on at least one of the walls of the case by forming a plurality of projections in regular arrangement by press working. The circuit elements of the transmitter-receiver are packed in the case to suppress the undesired electromagnetic coupling of internal and external electromagnetic waves with the circuit elements of the transmitter-receiver.
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申请公布号 |
US2001050644(A1) |
申请公布日期 |
2001.12.13 |
申请号 |
US20010772890 |
申请日期 |
2001.01.31 |
申请人 |
HITACHI, LTD. |
发明人 |
KOSHIZAKA ATSUSHI;OOUCHI SHIROU;YOKOYAMA MIZUHO;KAWAHARA KEIJI |
分类号 |
H05K9/00;H01L23/552;H01P1/16;H01P1/211;H04B1/08;H04B15/00;(IPC1-7):H01Q1/24 |
主分类号 |
H05K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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