| 摘要 |
PURPOSE: An antenna device is provided to save a space related to an antenna of a PCT(Printed Circuit Board) by integrating function of an antenna switch and an antenna terminal. CONSTITUTION: A duplexer(210) protects a receiver from a transmission output when transmitting a signal, and supplies an echo talker to a receiver when receiving a signal. A matching unit(220) receives an RF signal and matches an antenna and impedance, receives the transmission output from the duplexer(210) and transmits it, and receives an RF signal and transmits it as the echo talker to the duplexer(210). An antenna holder(240) fixes an antenna. An antenna switch(230) connects the matching unit(220) and a test unit(201) in a test mode, and connects the matching unit(220) and the antenna holder(240) in a general mode.
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