Patent ID: 8975982
Filing Date: 2015-03-10
Classification: H04B

Abstract:
1. A transmission and reception signal detecting apparatus comprising: a directional coupler including a first port and a second port; and a signal detecting part connected to the first and second ports of the directional coupler and detecting a first signal transmitted through the first port and a second signal transmitted through the second port, wherein the signal detecting part comprises: a first switching part connected to the first port of the directional coupler; a second switching part connected to the second port of the directional coupler; and a voltage detector electrically connected to an end of the first switching part and an end of the second switching part, wherein the voltage detector is connected to the first port by the first switching part under a first operation condition, wherein the voltage detector is connected to the second port by the second switching part under a second operation condition, and wherein the first switching part is turned on and the second switching part is turned off under the first operation condition, and the voltage detector detects an output of the first signal transmitted through the first switching part.