Microwave absorbing properties of the composites containing the planar equiangular spiralantenna arrays were investigated.
研究了含平面等角螺旋天线阵列吸波复合材料的微波吸收特性。
2
The impedance matching network of changeable load and wide-belt is required because the input impedance of spiralantenna changes with frequency.
由于该天线的输入阻抗随频率而变化，需要用一个宽带变负载阻抗匹配网络来实现天线与电台之间的匹配。
3
Two novel spherical helical antennas are designed by projecting the planar equiangular spiralantenna onto the surfaces of hemisphere and partial sphere.