クロススパイラル円偏波アンテナのスパイラルエレメント付加による小型化

抄録

The way of reducing the size of cross spiral antenna which radiates circularly polarized waves with simple structure is presented. Adding spiral elements is suggested as the way that helps in reducing the size of a cross spiral antennas as keeping its performance of circularly polarization. We have succeeded in reducing 75% of the size of a cross spiral antenna which have achieved less than 3 dB axial ratios and more than 10 dB return losses.