Transmission bandwidth enhancement using lateral displacement in a thin flexible single layer double sided FSS

A novel low profile frequency selective surfaces (FSS) with wide stop band characteristics suitable for UWB applications consists of square loops screen printed on both sides of a thin flexible polycarbonate substrate with a lateral offset in both directions. The design provides a ™10dB insertion bandwidth of 4.55-12.77GHz. The design delivers stop band for angular incidence in both single sided and double sided configurations up to 60o degrees. The symmetrical nature ensures identical response for TE and TM modes of polarization within 30o incidence. A comprehensive iterative analysis was made to enhance the ultra-wide bandwidth.