Progress toward THz antenna designs with high directivity and high efficiency

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

We present three linearly polarized photoconductive terahertz (THz) antenna designs for a THz imaging system that we are constructing. A bow-tie based antenna with a finite ground plane (on the side of the substrate opposite the bow-tie) and DC bias lines included, is the reference design. By making the ground plane larger, one is able to increase the directivity of the bow-tie design at 1.05 THz. On the other hand, by incorporating a metamaterial-inspired structure, which acts as an artificial magnetic conductor (AMC), the directivity is increased by almost 3 dB at 1.05 THz. The simulation results show that the radiation efficiency of this bow-tie AMC-augmented antenna is above 85% at 1.05 THz. A comparison of these three antenna designs is given.

Original languageEnglish (US)
Title of host publication2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
Pages2271-2272
Number of pages2
DOIs
StatePublished - Dec 1 2013
Event2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Orlando, FL, United States
Duration: Jul 7 2013Jul 13 2013

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

Other2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
CountryUnited States
CityOrlando, FL
Period7/7/137/13/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Zhu, N., & Ziolkowski, R. W. (2013). Progress toward THz antenna designs with high directivity and high efficiency. In 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings (pp. 2271-2272). [6711794] (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). https://doi.org/10.1109/APS.2013.6711794