| 摘要 |
PROBLEM TO BE SOLVED: To suppress the reduction of a propagation loss caused by an increased propagation distance, without a change of an antenna gain.SOLUTION: Radio equipment 205 includes an inverse F-shaped antenna 101 having a resonance part, and a radio module 201 for feeding a high frequency signal to the inverse F-shaped antenna and performs wireless communication with an access point. According to the distance between the radio module 201 and the access point, the length of the resonance part is changed without change of the total length of the inverse F-shaped antenna. At this time, the radio module 201 is moved along the inverse F-shaped antenna toward the tip part, and a switch 108 is set OFF and switches 109, 110 are set ON, to thereby shorten the length of the resonance part. |
