Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14755
Title: The miniaturization and bandwidth enhancement of printed circuit balun designs for wireless applications
Authors: ZHANG ZHENYU
Keywords: balun, Marchand balun, LTCC, size reduction, transition, wideband
Issue Date: 18-May-2005
Source: ZHANG ZHENYU (2005-05-18). The miniaturization and bandwidth enhancement of printed circuit balun designs for wireless applications. ScholarBank@NUS Repository.
Abstract: This thesis focuses on the miniaturization and bandwidth enhancement of balun designs for wireless applications fabricated on the Low Temperature Co-fired Ceramic (LTCC) or conventional Printed Circuit Board (PCB). Firstly, for the purpose of size reduction and performance improvement, the LTCC technique was employed in our balun designs. Several balun structures were developed using the LTCC technique. Secondly, the conventional Marchand balun was examined and design curves were plotted. Based on the even- and odd-mode method analysis, a planar Marchand balun, using a patterned ground plane in a single layer PCB environment, is presented for the first time. Thirdly, a new broadband balun transition, which can either be employed in microstrip-to-microstrip or microstrip-to-CPS applications, is presented for the first time. The evaluation was made based on the measured results for two back-to-back transitions. Finally several passive phase shifter configurations were studied, and a novel concise and low-cost wideband planar balun, which consists of a two-way Wilkinson power divider and a 1800 phase shifter, is proposed.
URI: http://scholarbank.nus.edu.sg/handle/10635/14755
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
M.Eng thesis(Zhang zhenyu).pdf2.83 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

279
checked on Dec 11, 2017

Download(s)

1,159
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.