Highly Efficient Ultra-Wide Band MIMO
Patch Antenna Array for Short Range
THz Applications
Mandeep Singh, Simranjit Singh, and Mohammad Tariqul Islam
Abstract In this chapter, a highly efficient and ultra-wideband MIMO patch antenna
array are studied and analyzed for short-range sub terahertz wireless communications. The polyimide material with thickness 50 μm and a dielectric constant of 3.5
is used as the substrate material. First, a single octagonal shape patch antenna is
developed from a rectangular shape patch antenna then such an octagonal antenna is
optimized by using a genetic algorithm (GA) for the terahertz frequency range. The
microstrip line feed with 50 impedance is used to feed the radiating patch for proper
impedance matching between the source and load. Furthermore, to tackle the highly
attenuated, path loss environment for the terahertz frequency range, a 4 × 2 MIMO
patch antenna array is developed by using the proposed optimized antenna. From the
measured results, it is found that the developed MIMO antenna array is resonating
on 0.660 and 0.833 THz frequency with an effective −23.98 dB and −29.29 dB
reflection coefficient, respectively. The developed antenna is efficiently covering
57.96% bandwidth. The optimized antenna has maximum directivity 9.77 dB and
gain 8.28 dB within the resonance band. Also, the mutual coupling between the
antenna element is low as the transmission coefficient and envelope correlation coefficient (ECC) is less than −14 dB and 0.01 between the respective MIMO antenna
element. The proposed MIMO antenna array can be a good candidate for future
short-range terahertz wireless applications.
Keywords Terahertz · MIMO · Bandwidth · Antenna
M. Singh (B) · S. Singh
Department of Electronics and Communications Engineering, Punjabi University Patiala, Patiala
147002, Punjab, India
e-mail: mswalia23@gmail.com
M. T. Islam
Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia,
43600 Bangi, Malaysia
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
A. Biswas et al. (eds.), Emerging Trends in Terahertz Engineering and System
Technologies, https://doi.org/10.1007/978-981-15-9766-4_10
193
Patch Antenna Array for Short Range
THz Applications
Mandeep Singh, Simranjit Singh, and Mohammad Tariqul Islam
Abstract In this chapter, a highly efficient and ultra-wideband MIMO patch antenna
array are studied and analyzed for short-range sub terahertz wireless communications. The polyimide material with thickness 50 μm and a dielectric constant of 3.5
is used as the substrate material. First, a single octagonal shape patch antenna is
developed from a rectangular shape patch antenna then such an octagonal antenna is
optimized by using a genetic algorithm (GA) for the terahertz frequency range. The
microstrip line feed with 50 impedance is used to feed the radiating patch for proper
impedance matching between the source and load. Furthermore, to tackle the highly
attenuated, path loss environment for the terahertz frequency range, a 4 × 2 MIMO
patch antenna array is developed by using the proposed optimized antenna. From the
measured results, it is found that the developed MIMO antenna array is resonating
on 0.660 and 0.833 THz frequency with an effective −23.98 dB and −29.29 dB
reflection coefficient, respectively. The developed antenna is efficiently covering
57.96% bandwidth. The optimized antenna has maximum directivity 9.77 dB and
gain 8.28 dB within the resonance band. Also, the mutual coupling between the
antenna element is low as the transmission coefficient and envelope correlation coefficient (ECC) is less than −14 dB and 0.01 between the respective MIMO antenna
element. The proposed MIMO antenna array can be a good candidate for future
short-range terahertz wireless applications.
Keywords Terahertz · MIMO · Bandwidth · Antenna
M. Singh (B) · S. Singh
Department of Electronics and Communications Engineering, Punjabi University Patiala, Patiala
147002, Punjab, India
e-mail: mswalia23@gmail.com
M. T. Islam
Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia,
43600 Bangi, Malaysia
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
A. Biswas et al. (eds.), Emerging Trends in Terahertz Engineering and System
Technologies, https://doi.org/10.1007/978-981-15-9766-4_10
193