WIDEBAND FRONT-END DEVICE AND RF SIGNAL FILTERING METHOD THEREOF

摘要

A wideband front-end device comprises a wideband amplifying module and a plurality of narrow band filters. The wideband amplifying module comprises an input end, a plurality connecting ends and at least one receiving end. A wideband transmitting RF signal can be transmitted to one of the connecting ends from the input end according to the frequency band thereof. Thus, the wideband transmitting RF signal can be divided into several narrow band signals with different frequency bands. Each narrow band signal with different frequency bands is transmitted to different connecting ends and narrow band filters respectively. Therefore, each narrow band filter can be used to filter wideband transmitting RF signal or narrow band signals with different frequency bands respectively to reduce production costs of the wideband front-end device.

主权项

1. A wideband front-end device, comprising:
a wideband amplifying module for receiving a wideband transmitting RF signal and outputting a plurality of narrow band signals with different frequency bands, and comprising;
a first switch device comprising at least one first input end and a plurality of first connecting ends, wherein said first input end is electrically connected to one of said first connecting ends via said first switch device according to said frequency band of said wideband transmitting RF signal inputted into said first input end to transmit said wideband transmitting RF signal from said first input end to one of said connecting ends, and thus each said first connecting end outputs said narrow band signal with different frequency bands respectively; andat least one amplifying unit electrically connected to said first switch device to amplify said wideband transmitting RF signal.