送受信アイソレーション向上に関する基礎的検討

抄録

A combination of wave-polarization directions between transmitting and receiving antennas is discussed with a paricular interest in an improvement of the isolation on the basis of measurement of the diffractive wave, and the result is compared with theoretical values. The levels of the diffractive wave differes each other depending on a combination of the polarization direction, and the maximum amount of 15dB obtained as a difference between the maximum and the minimum levels of receiving shows that this method is significantly effective to undergo the improvement. It is also confirmed that the theoretical level of the wave calculated from an approximate equation agrees with the measurement. An extensive discussion of the improvement on the more practical condition remains as our future study.