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Design and Manufacture of X-Band 10 X 10 Waveguide Slot Array Antenna for SAR  

신영종 (경희대학교 전파공학과)
이범선 (경희대학교 전파공학과)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.11, 2004 , pp. 1019-1025 More about this Journal
Abstract
The X-band 10${\times}$10 waveguide slot array antenna for SAR is designed, fabricated and measured. The array antenna is designed using the equivalent circuit model based on the field distribution of the dominant mode, TE$\sub$10/, and EM simulation. The method to decide optimum angle of the centered inclined slot(coupling slot) and the optimum of offset of the longitudinal slot(radiating slot) is provided. The designed antenna structure is EM simulated and fabricated. The measured return loss bandwidth is 180 MHz at 9.15 GHz , the side lobe level is below -25 dB, HPBW is about 9$^{\circ}$, and the gain is 25.5 dB. These results are similar to the simulation data.
Keywords
Waveguide Planar Array; Longitudinal Slot; Inclined Slot; Coupling Coefficient;
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  • Reference
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