公开(公告)号：US09331835B1

公开(公告)日：2016-05-03

申请号：US14220017

申请日：2014-03-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Tzung-i Lee ,  Varadarajan Gopalakrishnan ,  Cheol Su Kim ,  In Chul Hyun

IPC: H04L5/00 ,  H04L5/08 ,  H04W88/06

CPC classification number: H04W88/06 ,  H04B1/0057

Abstract: Radio frequency (RF) front-end circuitry and methods of operating the same are described. One apparatus includes multiple antennas and a RF front-end circuitry. The RF front-end circuitry includes: a selection switch coupled to a second antenna, a first RF transceiver coupled to a first antenna and selectively coupled to the second antenna via the selection switch; a second RF receiver coupled to the first antenna; and a third RF transceiver selectively coupled to the second antenna via the selection switch. The first antenna receives signals for the first RF transceiver and the second RF receiver. The selection switch selectively couples the second antenna to the first RF transceiver in a first mode of the RF front-end circuitry and selectively couples the second antenna to the third RF transceiver in a second mode of the RF front-end circuitry.

Abstract translation: 描述射频（RF）前端电路及其操作方法。 一种装置包括多个天线和RF前端电路。 RF前端电路包括：耦合到第二天线的选择开关，耦合到第一天线并经由选择开关选择性地耦合到第二天线的第一RF收发器; 耦合到所述第一天线的第二RF接收器; 以及经由所述选择开关选择性地耦合到所述第二天线的第三RF收发器。 第一天线接收用于第一RF收发器和第二RF接收器的信号。 所述选择开关在所述RF前端电路的第一模式中选择性地将所述第二天线耦合到所述第一RF收发器，并且在所述RF前端电路的第二模式中选择性地将所述第二天线耦合到所述第三RF收发器。