Investigation and design of microstrip patch antenna employed on PCs substrates in THz regime

ABSTRACT

This article presents the application of photonic crystal (PCs) structures to design a microstrip patch antenna at terahertz (THz) frequency. An inset-feed rectangular microstrip antenna is proposed using 1D, 2D, 3D PCs substrate in 0.1–1 THz operating band. The spectral behaviour of 1D PCs exhibits the PCs’ potential characteristics and demonstrates to use it in antenna design. The antenna radiation performance is performed using different PCs materials including air cavity (ɛ_r = 1), polyamide (ɛ_r = 3.5), paper (ɛ_r = 2.5), FR4 (ɛ_r = 4), Arlon (ɛ_r = 2.2) and quartz (ɛ_r = 3.78). It demonstrates that an air cavity photonic bandgap (PBG) type structure is more efficient than other PCs. Moreover, it reveals that 2D PCs-based antennas show a minimum reflection coefficient of −63.22 dB, maximum directivity of 6.81dBi, and radiation efficiency of 88.17% at 0.741 THz frequency. The antenna is a design and simulated by using CST microwave studio.

KEYWORDS:

• PC
• THz
• radiation characteristics
• patch antenna
• substrate material

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Ritesh Kumar Kushwaha

Dr. Ritesh Kumar Kushwaha received the Graduation and M.Tech. degree in Electronics and Communication Engineering from AMIETE- New Delhi, India and RGPV University, India in 2006 and 2010, respectively, He received his Ph. D degree from MN National Institute of Technology Allahabad, Prayagraj, India in 2020. Presently, he is working with the Bharat Institute of Engineering and Technology, Hyderabad as an Assistant Prof. in the Electronics and Communication Engineering Department. His research interests include waveguide design, low-profile planer antenna design at millimeter, and THz frequency.

P. Karuppanan

P. Karuppanan received the Graduation degree in ECE and M.Tech. in VLSI design from Madurai Kamaraj University and Anna University, in 2005 and 2007, respectively. He received his Ph. D degree from the National Institute of Technology Raurkela, Odisha India in 2013. Since then he has been working with National Institute of Technology as an Assistant Prof. in Electronics and Communication Engineering Department. His research interests include VLSI design, Industrial electronics, electromagnetic, numerical computation, and antenna design.