Triple-Band Metamaterial Inspired Antenna for Future Terahertz (THz) Applications

Abstract

For future healthcare in the terahertz (THz) band, a triple-band microstrip planar antenna integrated with metamaterial (MTM) based on a polyimide substrate is presented. The frequencies of operation are 500, 600, and 880 GHz. The triple-band capability is accomplished by etching metamaterial on the patch without affecting the overall antenna size. Instead of a partial ground plane, a full ground plane is used as a buffer to shield the body from back radiation emitted by the antenna. The overall dimension of the proposed antenna is 484 × 484 μm 2 . The antenna's performance is investigated based on different crucial factors, and excellent results are demonstrated. The gain for the frequencies 500, 600, 880 GHz is 6.41, 6.77, 10.1 dB, respectively while the efficiency for the same frequencies is 90%, 95%, 96%, respectively. Further research has been conducted by mounting the presented antenna on a single phantom layer with varying dielectric constants. The results show that the design works equally well with and without the phantom model, in contrast to a partially ground antenna, whose performance is influenced by the presence of the phantom model. As a result, the presented antenna could be helpful for future healthcare applications in the THz band.

Design and Development of Ultrabroadband, High-Gain, and High-Isolation THz MIMO Antenna with a Complementary Split-Ring Resonator Metamaterial

“…With the help of flawed ground structures, mutual coupling between the MIMO antennas can be reduced, even when they are placed laterally [ 7 ]. A triple-band MPA built on a polyimide substrate and integrated with a metamaterial has been presented as a potential solution for future healthcare applications in the terahertz band [ 8 ]. An antenna with a tunable resonance frequency via an external voltage was presented through the use of a graphene material.…”

Modeling and Calculation of Power Density from Telecommunication Base Station Erected at Federal University Gusau in Sabon Gida, Bungudu Local Government Area Zamfara State, Nigeria

“…Mathur, R. S. Sharma, 2018) discussed the devastating effect of exposure to EMR at RF in short and long range and concluded that it may leads to cancer and DNA alteration. Also, Ashyap et, al (Ashyap et al, 2020) pointed out that wave propagation around human body is interfered due to complex electromagnetic properties of the body. The interference may have an adverse effect on human health (Natarajan & Babu, 2019).…”