A receiver is disclosed. The receiver includes: a tunable low noise amplifier (LNA), the tunable LNA comprising: a plurality of LNAs for receiving and amplifying a plurality of frequency bands respectively; a plurality of first switches respectively coupled to the plurality of LNAs; a plurality of LC...http://www.google.com.tw/patents/US7715813?utm_source=gb-gplus-share專利 US7715813 - Receiver having tunable amplifier with integrated tracking filter
