Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies

Drysdale, T.D., Blaikie, R.J. and Cumming, D.R.S. (2003) Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies. Applied Physics Letters, 83, p. 5362. (doi:10.1063/1.1636822)

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Publisher's URL: http://dx.doi.org/10.1063/1.1636822

Abstract

A tunable metallic photonic crystal filter with a mechanical tuning mechanism is demonstrated. The performance is predicted with rigorous full-vector electromagnetic simulations (finite-difference time domain). A prototype has been built and characterized in the W band (70–110 GHz) using a vector network analyzer configured for free-space measurement of S parameters. The measured filter's passband has a quality factor of 11, a tuning range of 3.5 GHz, and insertion loss of only 1.1–1.7 dB. Device fabrication is straightforward, yielding an inexpensive, robust and compact tunable filter.

Item Type:Articles
Keywords:Submillimetre wave filters, electromagnetic wave transmission, photonic crystals, microwave photonics, crystal filters, finite difference time-domain analysis, band-pass filters, Q-factor, losses.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Drysdale, Dr Timothy
Authors: Drysdale, T.D., Blaikie, R.J., and Cumming, D.R.S.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Publisher:American Institute of Physics
ISSN:0003-6951
Copyright Holders:Copyright © 2003 American Institute of Physics
First Published:First published in Applied Physics Letters 83:5362
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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