Antenna duplexer with receiving, transmitting, and antenna terminal groups separated planarly

摘要

An antenna duplexer including two duplexer elements each including two surface acoustic wave filters having different center pass band frequencies and connecting terminals for connecting the duplexer elements and external circuits, which are grouped into an antenna terminal group for connection to an external antenna, a receiving terminal group for connection to an external circuit and a transmitting terminal group for connection to an external circuit, wherein regions for disposing the antenna terminal group, the receiving terminal group and the transmitting terminal group are separated planarly.