Terahertz Antenna Array Based on a Hybrid Perovskite Structure

Abstract

This paper presents a novel terahertz (THz) antenna array design comprising a layered structure of a perovskite material which enhances the radiation characteristics of an antenna overlaid on a conventional metallic antenna element. The simulated antenna consists of a THz gold patch antenna coated with a hybrid perovskite material, methyl-ammonium lead iodide CH 3 NH 3 PbI 3 which enables the manipulation of the THz electromagnetic waves. In addition to this, we also present a comparison of the antenna properties of the proposed hybrid perovskite material with antennas made of gold and perovskite only. The proposed antenna operates in the frequency band 0.9-1.2 THz. The simulated impedance bandwidth of the proposed array antenna ranges from 0.9 THz to 1.2 THz with a reflection coefficient (S11) less than-10 dB. The antenna array has a radiation patterns stability on the whole frequency band. The peak gain obtained is 11.4 dBi with perovskite arrays. The hybrid and perovskite antenna array demonstrate high radiation efficiency. The designs presented here will help in realising future wireless communication systems that require miniaturisation, fast reconfigurability and wearability.

THz antennas design, developments, challenges, and applications: A review

“…The schematics front view of the antenna array, S-parameters, and radiation patterns are shown in Figure 31A-C. 121 A 1 Â 2 graphene-based patch antenna with CSRR was designed to improve radiation performance with different design concepts, such as homogenous substrate, PBG substrate, and superstrated dielectric grating. The multilayer A 50 Â 32 high-gain antenna array for future generation cellular communication systems, which was excited by 1 Â 32 Wilkinson power divider, was designed on Rogers R03003 substrate (ϵ r = 3, h = 127 μm, and tanδ = 0.001) of dimensions 90000 Â 85000 μm 2 .…”

“…125 F I G U R E 3 1 56 elements THz patch antenna array: schematic (A) top view, (B) return loss, (C) radiation patterns ©. 121 F I G U R E 3 2 1 Â 2 antenna array: schematics (A) Graphene-based front view, (B) PBG-based view, (C) superstrated dielectric gratingbased view, (D) S-parameters, (E) radiation patterns ©. 122…”

“…The gain of the antenna was 11.3 dBi with 83% radiating efficiency. The schematics front view of the antenna array, S‐parameters, and radiation patterns are shown in Figure 31A–C 121 …”

An Ultrawideband Microfabricated Gold-Based Antenna Array for Terahertz Communication

“…The initial dimensions of the PICA were obtained using standard microstrip patch antenna design equations with the help of which we calculated the width and length of an equivalent patch antenna resonating at 1.00 THz. Following the design guidelines [35], an inverted cone was generated where the dimensions W p and L p were calculated using the expressions provided in our previous work [36]. In the PICA array, the antenna element spacing was set to a λ at 1 THz.…”

Terahertz Detection with Optically Gated Halide Perovskites

“…Moreover, the utilization of hybrid perovskites as a photoconductive material in THz detectors has several advantages. Its tunable band gap 26 provides the possibility to broaden the range for gating wavelengths, and it can be combined with various substrate materials. Solution-processable perovskites can be directly deposited on arbitrary dielectric and optically transparent substrates such as SiO 2 , glass, plastics, or polymers.…”