Patent ID: 8792843
Filing Date: 2014-07-29
Classification: H01Q,H04B

Abstract:
1. A shunt switch for a multiple radio wireless system, the shunt switch comprising: a first capacitor connected between a first antenna path, which is associated with a first antenna, and a first node; a diode having an anode connected to the first node and a cathode connected to a second antenna path, which is associated with a second antenna, separate from the first antenna; a first inductor connected between the cathode of the diode and ground; a first resistor connected between a control signal terminal and a second node; a second inductor connected between the second node and the first node; a second capacitor connected between the second node and ground; a third capacitor coupled between the first node and radio receiver components of a first radio; a controller in electrical communication with the control signal terminal and configured to selectively bias the diode to switch between a first electrical path and a second electrical path such that the first radio and a second radio receive a common signal to facilitate measuring a receive phase difference between the first and second radios.