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Singly and Dual Polarized Convoluted Frequency Selective Structures

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4 Author(s)
Benito Sanz-Izquierdo ; Department of Electronics, University of Kent, Canterbury ; Edward A. Parker ; Jean-Baptiste Robertson ; John C. Batchelor

Convoluting the elements of frequency selective surfaces produces resonating structures with very small unit cell dimensions. This feature is attractive when the FSS is to be used at low frequencies, mounted on a curved surface, or when placed in the proximity of compact radiators. The characteristics of single and dual polarized convoluted FSS are analyzed and measured. The development of novel convoluted elements derived from the square loop slot is traced and their performance is examined. A novel technique of interweaving convoluted loops allows for further cell size reduction, while increasing the passband width, introducing flexibility in wideband FSS design, particularly for tailoring the electromagnetic architecture of buildings, and mobile communications in the built environment. Simulated transmission responses of the convoluted structures are in good agreement with the measurements.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:58 ,  Issue: 3 )