| 摘要 |
In order to reduce waveform distortion caused by higher harmonic components of rectangular waveforms reduced as compared with fundamental frequency component when a wireless digital signal is directly and wirelessly transmitted and received by baseband transmission, an antenna apparatus includes a dielectric substrate including a ground conductor formed on a back surface thereof, and a radiation conductor formed on a front surface of the dielectric substrate. Upon directly transmitting and receiving a wireless digital signal via a feed point of the radiation conductor, formation of notched portions at sides of the radiation conductor, which intersect an electric field plane defined by an electric field when the antenna apparatus is excited, leads to reduction in the waveform distortion of waveform of the transmitted wireless digital signal.
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