| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna controller in which generation of intermodulation (IM) wave is suppressed.SOLUTION: A controller 300 includes a control circuit 310, and a stub circuit 320. The control circuit 310 is an electronic circuit composed of an electronic member (electronic component) such as a semiconductor element, and the stub circuit 320 is a circuit including a distributed constant line (stub). When signals of frequencies f, f, induced by two electromagnetic waves of frequencies f, fare inputted to the control circuit 310, an IM wave of frequency fis generated. The stub circuit 320 suppresses input of at least one of the signals of induces frequencies f, fto the control circuit 310, thus suppressing generation of the IM wave.SELECTED DRAWING: Figure 3 |
