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Proceedings Paper

Double channel mechanically tunable terahertz filter based on parallel plate waveguide cavities
Author(s): Lin Chen; Yiming Zhu
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Paper Abstract

Theoretical and experimental works were carried out on a double channel mechanically tunable terahertz filter integrated with parallel plate waveguide cavities. The filter includes two rectangular grooves on upper and bottom plates of waveguide, respectively. The filter frequencies can be quasilinearly tuned by altering the overlap length between two rectangle grooves on metal plates. From the experiment, we found low (high) resonant frequency can be adjusted from 0.417(0.346) THz to 0.399(0.374) THz when the overlap length is altered from 0 to 500 μm, respectively. The Q values can reach 46 with the resonant frequency (0.41THz), overlap length (220 μm) and waveguide spacing (650 μm). Theoretical results show good agreement with experiment.

Paper Details

Date Published: 5 December 2012
PDF: 11 pages
Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85620O (5 December 2012); doi: 10.1117/12.2008761
Show Author Affiliations
Lin Chen, Univ. of Shanghai for Science and Technology (China)
Yiming Zhu, Univ. of Shanghai for Science and Technology (China)


Published in SPIE Proceedings Vol. 8562:
Infrared, Millimeter-Wave, and Terahertz Technologies II
Cunlin Zhang; Xi-Cheng Zhang; He Li; Sheng-Cai Shi, Editor(s)

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