| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide radio equipment or a high-frequency switch IC which copes with increases of use frequency and antennas generated with the multibands of a mobile-body radio without increasing changeover control signals, and which is reduced in switch IC size and in connection. <P>SOLUTION: The radio equipment has a plurality of radio sections capable of conducting a radio communication in a frequency-division complex communication system, and the high-frequency switch having a radio-section changeover function changing over the radio section in response to the frequency conducting the communication and an antenna-changeover function changing over service antennas. The changeover of the high-frequency switch is controlled by a serial type digital signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
