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Effect of inter-element spacings variation on the performance of linear grounded frequency selective surface arrays in W-band This publication appears in: Microwave and Optical Technology Letters Authors: S. Faiz-Ul Islam, J. Stiens, G. Poesen, D. Jaeger, C. De Tandt, W. Ranson, W. De Raedt and R. Vounckx Volume: 52 Issue: 1 Pages: 155-160 Publication Year: 2010
Abstract: This article examines the issue of extending the inter-element spacing between slots of equally-spaced linear grounded frequency selective surface (FSS) arrays with spacing beyond half a wavelength in W-band (75뀶 GHz). We present the design, processing, and testing of W-band grounded FSS arrays with different inter-element spacings along transverse electric (TE) and transverse magnetic (TM) field directions separately. The comparison of periodicity changing effects along TE and TM field directions has been reported. The inter-element spacing versus phase curves demonstrate that in some extent the inter-element spacing can be a phase optimization parameter for complex array design. We fabricated the corresponding FSS arrays on quartz substrate with photolithographic etching technique, and characterized the vector S-parameters with a free space MYNA.
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