| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radio transmitter-receiver in which an excellent receiving state is obtained and a transmission frequency band is effectively utilized. <P>SOLUTION: A radio transmitter-receiver which performs radio communication using two or more carrier frequencies includes a plurality of radio transmission/reception units, each of the radio transmission/reception units including at least one radio transmission unit and radio reception unit connected in parallel to one antenna and including one reception signal processing circuit to which a plurality of radio reception units included in the plurality of radio transmission/reception units are connected in parallel, and a superconductor receiver filter and a superconductor transmitter filter are mounted on lateral sides which are different from each other of a cooling member forming a parallelepiped, and are housed in a heat-insulating container while being separated from each other by a distance approximately as long as the wavelength of a transmission signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
