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Performance investigation of microstrip exponential tapered line impedance transformer using MathCAD

Esa, Mazlina and Nik Abd Malik, Nik Noordini and Abdul Latif, Nadiyatulakmar and Marimuthu, Jayaseelan (2009) Performance investigation of microstrip exponential tapered line impedance transformer using MathCAD. In: Progress in Electromagnetics Research Symposium 2009 (PIERS), 2009, Moscow, Rusia.

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Abstract

Impedance transformer is an essential part of a system which allows two different loads to be perfectly connected without any loss due to reflections. This paper presents investigations performed on a microstrip exponential taper impedance, ETLI, transformer. Mathematical computations were performed using MathCAD software. The reflection coefficient and return loss responses are in good agreement with theory. Broadband characteristics have been observed. To further investigate the performance of the taper, the ETLI transformer is simulated. Four different load impedances have been considered and various lengths of ETLI were investigated. It was found that as the frequency increases, the number of optimum lengths has also increased with a smaller difference between the optimum lengths. The same pattern occurs with any load impedance, from 70 to 100 Ohm. In addition, the behaviour of ETLI transformer with variation of loads at a particular frequency showed that 80 Ohm load appeared to be the most matched. As the frequency increases, higher loads are matched with longer ETLI. Different loads are wellmatched with longer ETLI transformers at higher frequencies from 6 GHz

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:kiv record
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:15559
Deposited By: Mrs Liza Porijo
Deposited On:30 Sep 2011 09:39
Last Modified:11 Oct 2017 01:38

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