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Radiation characteristics of phased array antennas (PAAs) equidistantly the E-plane composed of 5×2 inductive load (ILPAs) are measured and compared to tho composed of conventional patch antenna characteristics of linear PAAs composed significantly improved compared to those composed of conventional patch antennas suc of the main beam gain and side-lobe level ov range.Index Terms -Inductive loaded patch ante antenna, mutual coupling, scan blindness, rad

Eun-Hyuk Kwak․Yong-Seung Lee․Boo-Gyoun Kim 요 약 S-대역과 X-대역에서 동작하며, 개구면 공유 구조를 가지는 광대역 패치 안테나를 제작하였다. S-대역 안테나는 2×2로 천공된 패치를 가지며, 천공된 자리에 X-대역에서 동작하는 패치 안테나를 2×2 배열하였다. 두 대역에서 모두 20 % 이상 의 넓은 대역폭 특성을 가지는 개구면 공유 구조를 가지는 이중 대역 안테나를 제작하고, 방사 특성을 분석하였다. AbstractA S / X dual broad band patch antenna with shared aperture structure is fabricated. A 2×2 perforated patch is used for S-band operation and a 2×2 patch antenna array is integrated in the 2×2 perforation for X-band operation. The measurement results of a S / X dual broad band patch antenna with shared aperture structure show the broad band characteristics larger than 20 % in both bands.