发明名称 |
HIGH FREQUENCY CIRCUIT, HIGH FREQUENCY CIRCUIT COMPONENTS AND COMMUNICATION APPARATUS USING THE SAME |
摘要 |
A high-frequency circuit comprising a high-frequency switch circuit for switching the three-way connection of an antenna to a transmitting circuit for the first communications system, a receiving circuit for a first communications system, and a transmitting/receiving circuit for a second communications system; a first bandpass filter disposed between the antenna and the high-frequency switch circuit; and a balanced-unbalanced conversion circuit disposed between the receiving circuit of the first communications system and the high-frequency switch circuit. |
申请公布号 |
EP1826914(B1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20050814211 |
申请日期 |
2005.12.06 |
申请人 |
HITACHI METALS, LTD. |
发明人 |
KEMMOCHI, Shigeru;HAGIWARA, Kazuhiro;FUKAMACHI, Keisuke;YAMASHITA, Takahiro;UCHIDA, Masayuki;WATANABE, Mitsuhiro |
分类号 |
H04B1/12;H04B1/00;H04B1/3805;H04B1/403;H04B1/44 |
主分类号 |
H04B1/12 |
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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