Microstrip system on-chip circular polarized (CP) slotted antenna for THz communication application

ABSTRACT

This paper is presenting two different microstrip antennas (LHCP and RHCP antennas). It can explain the effects of S-shape and Z-shape slots for left-hand circular polarization and right-hand circular polarization respectively. Both types of slots are used to convert linear polarized antenna into the circularly polarized antenna. It is simulated with the help of CST-2015 and HFSS2018 design software. The antenna is designed into two steps. At first step, a simple linear microstrip antenna is designed and with second step, slots are used for circular polarization. The operating simulated frequency in both types of software’s is 0.258 THz to 0.355 THz and having 11 % operating bandwidth with the axial ratio at 3 dB. All the results of both antennas are the same but only radiation patterns results are opposite in polarization. The paper also presents the parametric study of copper material thickness and substrate thickness of the antenna.

KEYWORDS:

• Axial ratio
• LHCP
• microstrip antenna
• RHCP
• S
• Z-shape slots
• THz communication

Disclosure statement

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

Additional information

Funding

This work is supported by the National Natural Science Foundation of China [grant number 61831001].

Notes on contributors

Shahid Ullah

Shahid Ullah, is a PhD candidate in School of electronics and Information engineering at Beihang University, Beijing, China. He received his Master’s degree in electrical engineering from CIIT, Islamabad (Abbottabad campus) Pakistan. His current interest includes Metameterial, Antenna Design and in the Terahertz Technology.

Cunjun Ruan

Cunjun Ruan, full professor of physical science in School of Electronics and Information Engineering, Beihang University, Beijing, China. His current interests include high power and broadband radiation sources in millimeter wave and terahertz band.

Muhammad Shahzad Sadiq

Muhammad Shahzad Sadiq, is a PhD candidate in School of electronics and Information engineering at Beihang University, Beijing, China. He received M. S. Electrical Engineering degree from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in March 2012. His current interest includes airborne antennas, high gain omnidirectional antennas.

Tanveer Ul Haq

Tanveer Ul Haq, is a PhD candidate in School of electronics and Information engineering at Beihang University, Beijing, China. He received MS degree in Electronic Engineering from Ghulam Ishaq Khan Institute of Engineering Sciences and Technology in 2014. His research interest includes complementary metamaterial based microwave and terahertz devices.

Wenlong He

Wenlong He, is now a distinguished professor in the College of Electronics and Information Engineering, Shenzhen University, China. He received Ph. D. degree in relativistic electron beams and masers from the Department of Physics, University of Strathclyde, U.K., in 1995. His main research interests include electron beams and Terahertz traveling wave tubes.