Title: Transmit-receive antenna switch in a TDD wireless communication system
Application Number: 200610132234 Application Date: 2006.07.03
Publication Number: 1925354 Publication Date: 2007.03.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B7/005
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: shaoya li lixiao shu
Abstract:
    Provided is a transmit-receive antenna switch (TRAS) in a TDD wireless communication system In the TRAS, a circulator transmits a signal received from a PA to an antenna feed line and a signal received from the antenna feed line to a reflector. The reflector fully reflects the signal received from the circulator when a reflection operation is turned on in transmission mode, and transmits the signal received from the circulator to a wireless switch, such as, an RF switch when the reflection operation is turned off in reception mode. The RF switch transmits or blocks the signal received from the reflector to or from an LNA according to the transmission or reception mode.
Time: 15
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