发明名称 |
TRANSMITTER FILTER ARRANGEMENT FOR MULTIBAND MOBILE PHONE |
摘要 |
<p>A filter arrangement for use in a multiband dual-mode mobile phone. In particular, the mobile phone is operable in a W-CDMA mode and a band-reject filter comprising at least a series and a shunt acoustic-wave resonators is used to create a deep notch at the receive frequency band. The band-reject filter further includes a plurality of inductive elements for matching static capacitance of the resonators at the passband frequency. The mobile phone is also operable in 1800 and 1900 GSM bands. The band-reject filter is operatively connected to a harmonic trap in order to eliminate the third harmonic of these GSM bands. The mobile phone is also operable in the lower GSM band, for which a harmonic filter can share an antenna path with the band-reject filter.</p> |
申请公布号 |
EP1632031(B1) |
申请公布日期 |
2012.07.11 |
申请号 |
EP20040724323 |
申请日期 |
2004.03.30 |
申请人 |
AVAGO TECHNOLOGIES WIRELESS IP (SINGAPORE) PTE. LTD. |
发明人 |
ELLAE, JUHA |
分类号 |
H04B1/40;H03H9/54;H03H9/64;H03H9/70;H03H9/72;H04B5/00 |
主分类号 |
H04B1/40 |
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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