Modified Koch borderline monopole antenna for THz regime

Sharma Taruna; Varshney Gaurav; Yaduvanshi R. S.Vashishath Munish

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Modified Koch borderline monopole antenna for THz regime

机译：Modified Koch borderline monopole antenna for THz regime

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摘要

A modified Koch frontier, super wide band antenna is designed and analyzed in both frequency and time domain. A novel combination of partial ground structure with asymmetric polygon shape patch is proposed in this letter. Higher order TM modes are excited in the structure and amalgamated in order to provide an impedance bandwidth of 139%. Average radiation efficiency of 85% is obtained throughout the resonating band of the antenna. Electrical shortening of antenna is achieved by modifying shape of patch to yield an operating bandwidth of 12.5 THz (2.7-15.2 THz) with a peak gain of 6 dBi. Furthermore, antenna behaves as monopole antenna for lower frequencies of operating bandwidth. Pulse preserving property in three direction paradigm is verified for far field radiation of the antenna and a high fidelity factor of 0.9597 is obtained. Presented antenna is best suited to be used as a terahertz (THz) pulse generator and detector in THz pulse imaging (TPI) systems for dental caries, dermatological practices, breast cancer and brain tumor detection.

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来源
《Optical and Quantum Electronics》 |2022年第5期|共16页
作者
Sharma Taruna; Varshney Gaurav; Yaduvanshi R. S.Vashishath Munish;
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作者单位

JC Bose Univ Sci & Technol;

NIT Patna;

NSUT Delhi;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Koch-fractal; THz pulse imaging; Partial ground structure; PULSE-PRESERVING CAPABILITIES; MICROSTRIP ANTENNA; PATCH ANTENNA; TERAHERTZ; GRAPHENE; DESIGN; BAND; COMMUNICATION; SUBSTRATE; SYSTEM;

Modified Koch borderline monopole antenna for THz regime

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