Miniaturized microstrip ring filter

Miniaturized microstrip ring filter is presented. Four lumped capacitors are added in the initial ring resonator topology to shift the resonant frequency to about 50% of its nominal value, leading to size reduction of the filter. The required value of the capacitors is calculated using tuning synthe...

Full description

Bibliographic Details
Published in:SCOReD2009 - Proceedings of 2009 IEEE Student Conference on Research and Development
Main Author: Zakaria N.Z.; Ismail Khan Z.; Mohd Salleh M.K.; Hamzah M.K.
Format: Conference paper
Language:English
Published: 2009
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-77952653926&doi=10.1109%2fSCORED.2009.5442951&partnerID=40&md5=4b203128549a2778f593c575d43d5cc8
Description
Summary:Miniaturized microstrip ring filter is presented. Four lumped capacitors are added in the initial ring resonator topology to shift the resonant frequency to about 50% of its nominal value, leading to size reduction of the filter. The required value of the capacitors is calculated using tuning synthesis equations of the ring resonator. The passband response of the filter is improved by modifying the line impedance of the ring. The final layout of the miniaturized filter centered at 2.76 GHz is compared to its counterpart showing a size reduction of about 67%. ©2009 IEEE.
ISSN:
DOI:10.1109/SCORED.2009.5442951