Patent ID: 9002296
Filing Date: 2015-04-07
Classification: H04B

Abstract:
1. A communication terminal comprising: an antenna configured to transmit a transmitting signal and receive a receiving signal in a wireless scheme; a transmitter configured to transmit the transmitting signal to the antenna; a receiver configured to receive the receiving signal from the antenna; and a transceive switch disposed between the transmitter and the receiver, and blocking electric connection between the transmitter and the receiver, wherein the transceive switch forms a transmitting path between the transmitter and the antenna in a transmitting mode, includes a circulator diverging an absorption path for blocking a reflecting signal in the transmitting signal reversely transferring to the transmitting path from the transmitting path, and forms a receiving path connecting the antenna and the receiver via the circulator when in a receiving mode, and wherein the transceive switch comprises a transmission matched switch circuit inactivated in the transmitting mode for controlling the circulator to absorb the reflecting signal, but activated in the receiving mode for controlling the circulator to cut-off introduction of the receiving signal.