Wideband planar array antenna based on SCRLH-TL for airborne synthetic aperture radar application

Mohammad Alibakhshikenari, Bal Singh Virdee and Ernesto Limiti

Journal of Electromagnetic Waves and Applications, 2018, vol. 32, issue 12, 1586-1599

Abstract: This paper presents empirical results of a novel planar microstrip array antenna based on a simplified composite right/left-handed transmission line (SCRLH-TL) for application in circularly polarized synthetic aperture radar (CP-SAR) systems operated in UHF, L, S, and C-Bands. The array antenna consists of 6 × 6 matrix of spiral-shaped radiating elements that are excited through proximity-coupled, single feed-line. Pattern synthesis technique is used to determine the excitation coefficients (amplitude and phase) to apply to the individual array elements to achieve the required pattern shape. The array antenna has dimensions of 111.5 × 96.06 mm2. The measured impedance bandwidth of the antenna is 3.85 GHz for S11

Date: 2018
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DOI: 10.1080/09205071.2018.1460280

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