Abstract

In this paper, a one-transmitting and three-receiving antenna operating at K-band with high gain and lower side-lobe is presented. The antenna is composed of compact square microstrip patch antenna elements with series feed. The character of high gain origins from the configuration of the microstrip antenna arrays, and the character of low side-lobe is obtained by Taylor synthesis method. The validity of the method is confirmed by computer simulation and experiments. The gain of the antenna array is 21.4dB and the side-lobe lever is less than -24dB, illustrating the feature of high gain and side lobe, which can be used in monitoring system of traffic [1].

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