Constructive interference in Yagi-Uda type printed terahertz antenna on photonic crystal substrate

Author

Jha, Kumud Ranjan ; Rao, S. V R Kondala ; Singh, Ghanshyam

Author_Institution

Sch. of Electron. & Commun. Eng., Shri Mata Vaishno Devi Univ., Jammu, India

fYear

2010

fDate

12-14 April 2010

Firstpage

1

Lastpage

5

Abstract

In this paper, a Yagi-Uda type printed antenna on the photonic crystal substrate at terahertz frequency regime has been investigated. An equivalent circuit model of the antenna has been proposed and a methodology to investigate various electrical parameters is discussed. A particular set of tuneable parameters of the structure has been used to investigate the effect of constructive interference. The effect of this mechanism helps to increase the gain, radiation efficiency and reduction in side-lobes significantly. The analysis is also compared by using two simulators, CST Microwave Studio based on finite integral technique and Ansoft HFSS based on finite element method. The gain of proposed antenna is 16.71 dB and minor lobes are suppressed by 9.3 dB in comparison to the main beam in the end-fire direction. The radiation efficiency of the proposed structure is 91.93%.

Keywords

Yagi antenna arrays; antenna radiation patterns; equivalent circuits; finite element analysis; microstrip antennas; radiofrequency interference; submillimetre wave antennas; Ansoft HFSS; CST Microwave Studio; Yagi-Uda type printed terahertz antenna; constructive interference; efficiency 91.93 percent; electrical parameters; equivalent circuit model; finite element method; finite integral technique; photonic crystal substrate; radiation efficiency; Analytical models; Brain modeling; Equivalent circuits; Finite element methods; Frequency; Integral equations; Interference; Microwave theory and techniques; Photonic crystals; Tunable circuits and devices; Yagi-Uda antenna; directivity; gain; radiation efficiency; terahertz spectrum;

fLanguage

English

Publisher

ieee

Conference_Titel

Sarnoff Symposium, 2010 IEEE

Conference_Location

Princeton, NJ

Print_ISBN

978-1-4244-5592-8

Type

conf

DOI

10.1109/SARNOF.2010.5469759

Filename

5469759