| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce sneak signals from a transmitting portion to a receiving portion inexpensively. <P>SOLUTION: This radio communication equipment is provided with: the transmitting portion 2 which modulates and transmits a base band signal; the receiving portion 3 which receives signals while taking synchronization with the transmitting portion 2; an antenna 5 which is connected to the transmitting portion 2 and the receiving portion 3 via a circulator 42, and used for both of transmission and reception; a control portion 6 which controls the transmission and the reception by the transmitting portion 2 and the receiving portion 3; and a voltage variable phase shifter 43 which is provided between the transmitting portion 2 and the circulator 42, and changes phases of the signals to be transmitted from the transmitting portion 2, wherein the control portion 6 is provided with a sneak signal level detector 62 for detecting voltage levels of the sneak signals 8, 9 which sneak from the transmitting portion 2 around the receiving portion 3 using components of the receiving portion 3; and a phase automatic adjuster 63 for automatically adjusting the phases of the signals to be transmitted from the transmitting portion 2 according to the voltage levels of the sneak signals. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
