发明名称 |
Antenna filtering arrangement for a dual mode radio communication device |
摘要 |
<p>A dual mode radio apparatus has an integrated filtering part (51) which includes an antenna port (51a) for connection to an antenna (21), at least one port (51b, 51c, 51d) for connection to each of the system-specific radio-frequency parts (54, 55) of the dual mode radio apparatus and filtering means for directing the propagation of signals between ports on the basis of the signal frequency. The integrated filtering part replaces earlier separate filters and their impedance matching circuits as well as some of the required radio-frequency switches. <IMAGE></p> |
申请公布号 |
EP0829915(A2) |
申请公布日期 |
1998.03.18 |
申请号 |
EP19970307039 |
申请日期 |
1997.09.10 |
申请人 |
FILTRONIC LK OY |
发明人 |
HAGSTROM, PANU;YRJOLA, SEPPO |
分类号 |
H01P1/213;(IPC1-7):H01P1/213 |
主分类号 |
H01P1/213 |
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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