Patent ID: 7425876
Filing Date: 2008-09-16
Classification: H04B

Abstract:
1. An antenna switch circuit comprising: a first signal line to transmit a transmitting signal received at a transmitting terminal to an antenna terminal and to transmit a receiving signal received at the antenna terminal to a receiving terminal; a first switch that is connected to the first signal line between the transmitting terminal and the antenna terminal; a second switch that is connected to the first signal line between the receiving terminal and the antenna terminal; a second signal line to transmit a first control signal that controls the turning on and off of said first switch; and a third signal line to transmit a second control signal that controls the turning on and off of said second switch, wherein at least one of said second and third signal lines crosses the first signal line; in at least one of said second and third signal lines, a first resistive element is disposed on a first side of a cross point with said first signal line and a second resistive element is disposed on a second side of the cross point, the second resistive element being disposed between the cross point and a control circuit that outputs the corresponding one of the first and second control signals; and the at least one of said second and third signal lines that are crossing with said first signal line includes a conductive path through said first and second resistive elements.