FSS modulator for future high speed communication applications

G. I. Kiani*, T. S. Bird

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


A modulator based on a switchable frequency selective surface (FSS) is presented. The FSS can be designed to operate either as a free space or a waveguide modulator for possible future high speed communication applications. A rectangular loop aperture geometry is used for the FSS design in order to provide modulation for one polarisation only i.e. TE or TM. Switching can be achieved using two PIN diodes placed across the aperture at 180 degree interval. Negative DC biasing is provided from the back-side while positive DC biasing is provided from the front of the FSS structure. To minimize the effect of bias line on the overall frequency response, they have been placed orthogonal to the principle axis of the FSS. As an example at 31.5GHz, a transmission discrimination of 30dB is predicted, when the PIN diodes are switched, enabling this switchable FSS to be used for amplitude shift keying modulation.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC 2011
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)9780858259744
ISBN (Print)9781457720345
Publication statusPublished - 2011
Externally publishedYes
EventAsia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia
Duration: 5 Dec 20118 Dec 2011


OtherAsia-Pacific Microwave Conference, APMC 2011
CityMelbourne, VIC


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