Abstract-Asymmetrically CPW Fed Square Sierpinski Carpet Ultrawideband Terahertz Antenna

 

Sarthak Singhal, 

https://www.sciencedirect.com/science/article/abs/pii/S0030402621007361

A square shaped Sierpinski Carpet ultra wideband antenna for terahertz applications is proposed in this paper. The proposed antenna contains third iterative radiator asymmetrically fed by a modified feedline and notch loaded coplanar waveguide modified ground plane. The antenna is operating over a frequency spectrum of 2.2-10.5 THz (VSWR>2) $\mathit{/vVSWR}\mathit{\le }$

The overall antenna volume is 42 µm × 22 µm × 1.6 µm. It has a peak realized gain of 5.5 dBi along with desirable radiation patterns. The proposed antenna has advantages of wide bandwidth and compact size with respect to previously reported structures.

Abstract-Four arm windmill shaped superwideband terahertz MIMO fractal antenna

Sarthak Singhal,




https://www.sciencedirect.com/science/article/abs/pii/S0030402620309293

In this paper, a microstrip line fed windmill shaped antenna for superwideband multiple input multiple output (MIMO) applications at terahertz frequency spectrum is proposed. It comprises a second iterative fractal radiator, tapered microstrip line feeding and partial rectangular ground plane. The antenna element and MIMO configurations are operating from 3.1 THz to more than 60 THz. The footprint of spatial and pattern diversity configurations are 110 μm×125 μm and 110 μm×155 μm respectively. Both configurations have isolation more than 30 dB in maximum part of their operating frequency spectrum along with distorted omnidirectional radiation patterns and acceptable values of MIMO performance parameters.

Abstract-Hexagonal Fractal Antenna For Super Wideband Terahertz Applications

Sarthak Singhal, Jaiverdhan Budania,



https://www.sciencedirect.com/science/article/pii/S003040261931513X

A hexagonal fractal superwideband antenna operating at terahertz frequencies is presented in this paper. It consists of three iterations of a hexagonal slot loaded hexagonal radiator fed by a microstrip line, defected irregular partial ground plane along with a backed plane rectangular ring resonator. This antenna has an operating bandwidth of 0.2 THz to 11.5 THz for $\mathit{V}\mathit{S}\mathit{W}\mathit{R}\le 2$. Other frequency domain characteristics like distorted omnidirectional radiation patterns in both E & H planes and peak realized gain of 10.82 dB are observed. HFSS simulator is used for analyzing this antenna geometry.

Abstract-Ultrawideband elliptical microstrip antenna for terahertz applications

Sarthak Singhal

https://onlinelibrary.wiley.com/doi/abs/10.1002/mop.31910

An elliptical microstrip antenna for ultrawideband applications in terahertz (THz) frequency range is proposed. It comprises a microstrip feedline and a partial rectangular ground plane. It has an operating bandwidth of 0.46‐5.46 THz and a peak realized gain of 12 dB. It is simulated by using both high‐frequency structure simulator (HFSS) and Computer Simulation Technology Microwave Studio (CST MWS) simulators. It has distorted omnidirectional radiation patterns across the entire band of operation.