Frequency selectively screened office incorporating convoluted FSS window

Abstract

The frequency selectivity of small single and double layer FSS windows built into an office enclosure and employing highly miniaturised interwoven array elements is assessed across the frequency range from 200 MHz to 2 GHz. The aim of providing an emergency services passband at about 400 MHz while providing isolation of at least 15 dB above 600 MHz is achieved.