This short communication presents the design, fabrication and the measured results of a stacked array antenna for X-band radar applications. The antenna array is comprised of 2 × 8 radiating elements to produce a fan beam which is narrow in the azimuth and wider in the elevation. The individual radiating elements of the array utilize a stacked patch topology to achieve broad bandwidth and high gain. The array elements are pin fed from a microstrip corporate feed network designed on a substrate placing beneath to conserve the broad space. The simulation results show that the individual radiating element operates from 10.0 to 10.6 GHz with − 10 dB return loss bandwidth of 600 MHz, and realized gain of 6.3 dBi. A 2 × 8 array is then fabricated. The measured results show that the antenna has Phi-0 beam width of 10° and a Phi-90 beamwidth of 30° with 17.1 dBi boresight gain. The antenna is suitable for X-band applications like amateur radio, amateur satellite, military, airborne and naval radars.

中文翻译：

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扇形束堆叠阵列X波段雷达天线

这种简短的交流介绍了用于X波段雷达应用的堆叠阵列天线的设计，制造和测量结果。天线阵列由2×8个辐射元件组成，以产生扇形波束，该波束的方位角较窄而仰角较宽。阵列的各个辐射元件利用堆叠的贴片拓扑来实现宽带宽和高增益。阵列元件由微带连体馈电网络针式馈送，该馈电网络设计在下方放置的基板上，以节省广阔空间。仿真结果表明，单个辐射元件的工作频率为10.0至10.6 GHz，回波损耗带宽为600 MHz，− 10 dB，实现的增益为6.3 dBi。然后制作了一个2×8的阵列。测量结果表明，该天线的Phi-0波束宽度为10°，Phi-90波束宽度为30°，视轴增益为17.1 dBi。该天线适用于X波段应用，例如业余无线电，业余卫星，军事，机载和海军雷达。