Development of UWB Bandpass Filter Using Ring Resonator
A new Ultra-Wideband (UWB) bandpass filter is proposed and tested. The filter is based on ring resonator with interdigital coupling at both sides. The interdigital coupling is used instead of direct coupling for the reason of strong coupling and to introduce capacitance effect to obtain flat passband. The measurements have shown an insertion loss below -1.3 dB, return loss about -45 dB and group-delay variation under 0.05 ns over the -10 dB operating band of 5.56 GHz. The overall size of the designed filter with the above features is 6 mm (length) x 39.29 mm (breadth) x 1.6 mm (height). The proposed filter has also shown good outband performance that is higher than Federal Communications Commissions (FCC) mask. The phase of S21 throughout the passband of presented filter is acceptably linear for UWB applications.
Thirumalaivasan K Nakkeeran R Oudaya coumar S
Department of Electronics and Communication Engineering Pondicherry Engineering College, Puducherry-605014, India
国际会议
南京
英文
1-3
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）