The analysis is presented for a microstrip feed proximity coupled monofilar Archimedean spiral four-element antenna array. Interactions between the microstrip corporate feed and the radiating elements are rigorously included. Results demonstrate that circular polarization can be achieved with proper spiral arm length. Polarization of either sense is controlled by the location of the feedline. The 3-dB axial ratio (AR) and voltage standing wave ratio (VSWR) bandwidths are 9%. The antenna is small (2R//spl lambda//sub 0/=0.33) and the interelement spacing is 0.51/spl lambda//sub 0/. The microstrip feed produces a completely planar antenna system, which is compatible with microwave integrated circuits (MIC) and monolithic microwave integrated circuits (MMIC).
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机译：针对微带馈电邻近耦合单丝阿基米德螺旋四元素天线阵列进行了分析。微带公司饲料与辐射元件之间的相互作用被严格地包括在内。结果表明，通过适当的螺旋臂长度可以实现圆极化。任一方向的极化均由馈线的位置控制。 3 dB的轴向比率（AR）和电压驻波比率（VSWR）带宽为9％。天线很小（2R // spl lambda // sub 0 / = 0.33），并且元素间距为0.51 / spl lambda // sub 0 /。微带馈电产生了一个完全平面的天线系统，该系统与微波集成电路（MIC）和单片微波集成电路（MMIC）兼容。
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