Compact Dual Band Antenna for Space Borne SAR

A compact three-layer shared-aperture dual-band dual-polarised array operating in L/C-band is investigated for applications in remote sensing sensors. The array comprises square, aperture-coupled patches in the C-band and a square, perforated L-band patch, both on the same layer. The feed networks for both the bands are placed behind the ground plane on the same layer. The ground layer provides the aperture for feed coupling. The three-layer L/C-band sub-array gives promising results for low weight application such as space borne synthetic aperture radar (SAR).

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