Progress toward THz antenna designs with high directivity and high efficiency

Ning Zhu; Richard W. Ziolkowski

doi:10.1109/APS.2013.6711794

Progress toward THz antenna designs with high directivity and high efficiency

Ning Zhu, Richard W. Ziolkowski

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English (US)
Title of host publication	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
Pages	2271-2272
Number of pages	2
DOIs	https://doi.org/10.1109/APS.2013.6711794
State	Published - 2013
Event	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Orlando, FL, United States Duration: Jul 7 2013 → Jul 13 2013

Publication series

Name	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

Other

Other	2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
Country/Territory	United States
City	Orlando, FL
Period	7/7/13 → 7/13/13

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/APS.2013.6711794

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Progress toward THz antenna designs with high directivity and high efficiency. / Zhu, Ning; Ziolkowski, Richard W.
2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings. 2013. p. 2271-2272 6711794 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhu, N & Ziolkowski, RW 2013, Progress toward THz antenna designs with high directivity and high efficiency. in 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings., 6711794, IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), pp. 2271-2272, 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013, Orlando, FL, United States, 7/7/13. https://doi.org/10.1109/APS.2013.6711794

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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.",

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Progress toward THz antenna designs with high directivity and high efficiency

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