Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

Abstract

In this paper, a rectangular microstrip patch antenna on two-layer substrate materials has been analyzed and simulated at the terahertz frequency regime for the surveillance system. The proposed antenna has been simulated at 600 and 800 GHz frequencies by using CST Microwave Studio a commercially available simulator based on finite integral technique. This antenna structure is also simulated by using finite element method based simulator Ansoft HFSS and the results are compared with former.

Analysis and design of rectangular microstrip antenna on two-layer substrate materials at terahertz frequency

“…At the higher frequency, the effective dielectric permittivity of the substrate is frequency dependent. Recently, we have explored these losses and designed a dual-band microstrip antenna at terahertz frequency in which the effective dielectric permittivity of the material was extracted by using two-capacitance model [26]. In the present work, we have explored the feasibility of improvement in the accuracy of an effective dielectric permittivity of the two-layer substrate material and after successful calculation of the effective dielectric permittivity of the material.…”

“…In order to calculate the effective dielectric permittivity at the high frequency, we propose to integrate these formulas to obtain new tool to calculate an effective permittivity at terahertz frequency. This value has been calculated by using the two-capacitance model [26]. Since the capacitance is directly proportional to the dielectric permittivity and inversely proportional to the distance between two plates, the relative dielectric permittivity of the composite material is:…”

“…Recently, Jha and Singh [26] have reported a rectangular microstrip patch antenna on two-layer substrate materials for surveillance systems in which various types of losses at terahertz frequency is investigated. In [26], the effective dielectric permittivity and losses of two-layer substrate material of a rectangular microstrip patch antenna for communication systems have been analyzed and simulated at terahertz frequency regime. In the present paper, an effective dielectric permittivity of multilayer microstrip terahertz antenna is analyzed and extended to design enhanced gain antennas at 0.5-0.7 THz frequency range of the spectrum.…”

Analysis of narrow terahertz microstrip transmission-line on multilayered substrate

“…In general, the multilayer substrate is represented by series capacitance model [18,19]. The accuracy of this model decreases with the increase in the operating frequency and the number of substrate layers due to dispersive behavior of the substrate materials.…”

Ultrawideband elliptical microstrip antenna for terahertz applications

“…Therefore, planar microstrip antenna geometries are found to be the most suitable antenna geometries for THz frequency spectrum. In the available literature, several planar single band antenna geometries are already reported . All these previously reported antenna geometries have either single or multiple band performance but not wideband performance to the best of the author's knowledge.…”