Numerical Analysis of Wideband and High Directive Bowtie THz Photoconductive Antenna

Authors

  • Amira Dhiflaoui University of Tunis El Manar (UTM), National Engineering School of Tunis (ENIT) Communications Systems Laboratory (SysCom), BP 37, Belvédère 1002 Tunis, Tunisia
  • Ali Yahyaoui 1 University of Tunis El Manar (UTM), National Engineering School of Tunis (ENIT) Communications Systems Laboratory (SysCom), BP 37, Belvédère 1002 Tunis, Tunisia 2 Electrical and Computer Engineering Department, Faculty of Engineering, King Abdulaziz University P.O. Box 80204, Jeddah 21589, Saudi Arabia
  • Jawad Yousaf 2 Electrical and Computer Engineering Department, Faculty of Engineering, King Abdulaziz University P.O. Box 80204, Jeddah 21589, Saudi Arabia 3 Department of Electrical and Computer Engineering, Abu Dhabi University, United Arab Emirates
  • Shahid Bashir Department of Electrical Engineering, University of Engineering & Technology, Peshawar, Pakistan
  • Bandar Hakim Electrical and Computer Engineering Department, Faculty of Engineering, King Abdulaziz University P.O. Box 80204, Jeddah 21589, Saudi Arabia
  • Toufik Aguili University of Tunis El Manar (UTM), National Engineering School of Tunis (ENIT) Communications Systems Laboratory (SysCom), BP 37, Belvédère 1002 Tunis, Tunisia
  • Hatem Rmili 1 University of Tunis El Manar (UTM), National Engineering School of Tunis (ENIT) Communications Systems Laboratory (SysCom), BP 37, Belvédère 1002 Tunis, Tunisia 2 Electrical and Computer Engineering Department, Faculty of Engineering, King Abdulaziz University P.O. Box 80204, Jeddah 21589, Saudi Arabia
  • Raj Mittra 2 Electrical and Computer Engineering Department, Faculty of Engineering, King Abdulaziz University P.O. Box 80204, Jeddah 21589, Saudi Arabia,5Electrical and Computer Engineering Department, University of Central Florida, EMC Lab, Orlando, FL 32816 USA

Keywords:

Bowtie antenna, high directivity, photoconductive THz antenna, wideband

Abstract

This paper presents a novel wideband and high directivity Bowtie photoconductive antenna (PCA) for THz frequency applications. The radiation properties of proposed PCA were analyzed by varying important design parameters, such as substrate thickness, conductor thickness, bowtie antenna width, length and gap. The optimized values of these parameters are then used to design a wideband PCA THz antenna which exhibits impedance bandwidth of 3 THz, 3 dB AR bandwidth of 6 THz, peak directivity of about 18.2 dBi and peak radiation efficiency of 98% within the operating band. To improve the directivity of the proposed antenna, a silicon-based lens is added in the structure and the effect of silicone lens on THz antenna directivity is also studied for enhanced directivity of proposed antenna. The proposed THz antenna can be a prospective candidate for future THz applications such as spectroscopy, imaging, sensing and indoor communication.

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References

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Published

2020-06-01

How to Cite

[1]
Amira Dhiflaoui, “Numerical Analysis of Wideband and High Directive Bowtie THz Photoconductive Antenna”, ACES Journal, vol. 35, no. 6, pp. 662–673, Jun. 2020.

Issue

2020: Vol 35 Iss 6

Section

Articles