UPM Institutional Repository

Novel compact microstrip ultra-wideband filter utilizing short-circuited stubs with less vias


Razalli, Mohammad Shahrazel and Ismail, Alyani and Mahdi, Mohd Adzir and Hamidon, Mohd Nizar (2008) Novel compact microstrip ultra-wideband filter utilizing short-circuited stubs with less vias. Progress In Electromagnetics Research, 88 (PIER 88). 91 - 104. ISSN 1070-4698, ESSN: 1559-8985


We present here a new pattern with compact size of Ultra Wideband (UWB) microwave filter. The filter is based on quarter-wave length short-circuited stubs model. We introduced here a new schematic model by extracting all parasitic elements such as T-junction and discontinuity in our new pattern of UWB filter. This new filter has minimal number of vias and improved frequency bandwidth, insertion loss and return loss. It is fabricated on RT Duroid 5880 with 0.508mm of substrate thickness. The final dimension is measured as 21mm×14 mm. It is not only compact, but also delivers excellent scattering parameters with magnitude of insertion loss, |S21| lower than 0.85 dB and return loss better than -11.6 dB. The fractional bandwidth is 109% from 3.06 GHz to 10.43 GHz. In the pass band, the measured group delay varies in between 0.47 ns to 0.32 ns, showing stability with minimum variation of only 0.15 ns.

Download File

PDF (Abstract)
Novel compact microstrip ultra.pdf

Download (84kB) | Preview
Official URL or Download Paper: http://www.jpier.org/PIER/pier.php?paper=08102303

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.2528/PIER08102303
Publisher: EMW Publishing
Keywords: Ultra wideband; Filter; Short-circuited stubs
Depositing User: Fatimah Zahrah @ Aishah Amran
Date Deposited: 27 Dec 2014 05:32
Last Modified: 30 Oct 2015 01:25
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.2528/PIER08102303
URI: http://psasir.upm.edu.my/id/eprint/15845
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item