Linear-to-Circular Polarization Reflector With Transmission Band

Robert Orr, George Goussetis, Vincent Fusco, Elena Saenz

Research output: Contribution to journalArticle

24 Citations (Scopus)


A new class of polarizing surface is proposed that in a given frequency band can reflect incident linearly polarized waves with circular polarization (CP) while at other frequencies is transparent allowing incident waves to transmit unaffected. The proposed structure consists of two parallel anisotropic frequency selective surfaces (FSSs) that independently interact with TE or TM waves, respectively. The FSSs are designed to, respectively, transmit TE and TM waves within the same transmission frequency range, so that the combined structure is transparent to all polarizations in this band. Likewise, the two arrays are designed to, respectively, reflect TE and TM incident waves in a common reflection band, so that all polarizations are fully reflected in this range; if the separation of the two arrays is such that the TE and TM components of an incident wave polarized at slant 45° experience a 90° phase shift, reflection will occur in CP. The concept and performance limitations are theoretically investigated using transmission line theory as well as full wave results. The predicted performance is validated by means of experimental results on a fabricated prototype. The proposed structure is pertinent for employment as a quasi-optical diplexer in CP dual-band systems such as reflector antennas.
Original languageEnglish
Pages (from-to)1949-1956
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Early online date23 Feb 2015
Publication statusPublished - May 2015

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