Inventors:
Satoshi Suga - Phoenix AZ, US
Gerard Cunningham - Phoenix AZ, US
International Classification:
H04B001/38
H04B001/44
Abstract:
A high frequency module comprises a high frequency switch and a coupler. The high frequency switch selectively allows a transmission signal terminal or a reception signal terminal to be connected to an antenna terminal. The coupler is provided between the transmission signal terminal and the high frequency switch and detects transmission signals. The coupler incorporates a main line and a subline electromagnetically coupled. The subline has a width smaller than the width of the main line. Where the coupling C of the coupler is −X dB and the directivity D of the coupler is −Y dB, X is within a range of 10 to 21 inclusive and Y is 21 or greater.
