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An accurate operation of wideband multi-port reflectometer with new calibration method implementing least mean square for microwave imaging application

Che Yob, Rashidah and Seman, Norhudah (2015) An accurate operation of wideband multi-port reflectometer with new calibration method implementing least mean square for microwave imaging application. Jurnal Teknologi, 73 (3). pp. 119-125. ISSN 2180–3722

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Official URL: http://dx.doi.org/10.11113/jt.v73.4256

Abstract

The wideband operation of multi-port reflectometer may lead to inaccurate reflection coefficient measurement caused by the overlapped phase characteristics of the used calibration standards. Therefore, a calibration procedure implementing Least Mean Square (LMS) is proposed to offer accurate operation of wideband multi-port reflectometer from 1 to 6 GHz. Its well wideband performance is verified by attenuators of 3, 6 and 10 dB that assessed as the device under tests (DUTs). The proposed LMS contains a learning rate, m and updated weight coefficient, W(k+1) to eliminate error and achieve the corrected reflection coefficient of DUT

Item Type:Article
Uncontrolled Keywords:overlapped phase characteristics, wideband
Subjects:T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:57731
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 04:08
Last Modified:01 Nov 2017 04:16

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