New compact ultra wideband bandpass filter using modified multi-mode resonator

2012 ◽  
Vol 66 (12) ◽  
pp. 1021-1025 ◽  
Author(s):  
Hung-Wei Wu ◽  
Yu-Fu Chen
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Multi Mode ◽  
Mode Resonator

Design and analysis of a planar UWB bandpass filter with stopband characteristics using MMR technique

2021 ◽  
pp. 1-8
Author(s):  
Gaurav Saxena ◽  
Priyanka Jain ◽  
Y. K. Awasthi
Keyword(s):  
Return Loss ◽  
Group Delay ◽  
Bandpass Filter ◽  
Ground Plane ◽  
Cost Effective ◽  
Ultra Wideband ◽  
Defected Ground Structures ◽  
Ground Structures ◽  
Multi Mode ◽  
Mode Resonator

Abstract In this paper, a ultra-wideband (UWB) bandpass filter with stopband characteristics is presented using a multi-mode resonator (MMR) technique. An MMR is formed by loading three dumbbell-shaped (Mickey and circular) shunt stubs placed in the center and two symmetrical locations from ports, respectively. Three circular and arrowhead defected ground structures on the ground plane are introduced to achieve UWB bandwidth with a better roll-off rate. The proposed filter exhibits stopband characteristics from 10.8 to 20 GHz with a 0.4 dB return loss. The group delay and roll-off rate of the designed filter are <0.30 ns in the passband and 16 dB/GHz at lower and higher cut-off frequencies, respectively. The dimension of the filter is 0.74λg × 0.67λg mm2 and was fabricated on a cost-effective substrate. All simulated results are verified through the experimental results.

scholarly journals Design and Analysis of Interdigital Coupled Ultra Wideband Bandpass Filter using Multimode Resonator

2019 ◽  
Vol 9 (1) ◽  
pp. 1456-1459
Keyword(s):  
Return Loss ◽  
Group Delay ◽  
Bandpass Filter ◽  
Capacitive Coupling ◽  
Ultra Wideband ◽  
Fractional Bandwidth ◽  
Wireless Applications ◽  
Feed Line ◽  
Multi Mode ◽  
Mode Resonator

In this paper, an interdigital coupled microstrip bandpass filter incorporated with shorted stub multi-mode resonator at ultra-wideband spectrum is presented. Proposed filter is characterized by its ultra compactness achieved through multi-mode resonator. The proposed filter is incorporated with interdigitated transmission line based on Lange Coupler topology. This structure enhances capacitive coupling between feed line and MMR which improves lower frequency selectivity of BPF. The parameters viz. fractional bandwidth of 105%, return loss above 20 dB and insertion loss below 1 dB at centre frequency of 4.875 GHz are recorded. The bandwidth of the filter is measured to be 5.15 GHz (2.3 to 7.45 GHz). The filter shows good linearity with its group delay recorded 0.2 ns with small variations of 0.1 ns at maximum in its passband. The compactness of proposed filter makes it suitable for various modern wireless applications.

Multi-mode resonator-based ultra-wideband power divider

2016 ◽  
Vol 58 (10) ◽  
pp. 2419-2422 ◽  
Author(s):  
Pratik Mondal ◽  
Susanta Kumar Parui
Keyword(s):  
Ultra Wideband ◽  
Power Divider ◽  
Multi Mode ◽  
Mode Resonator

A compact sept‐band bandpass filter utilising a single multi‐mode resonator

2019 ◽  
Vol 13 (12) ◽  
pp. 2013-2019
Author(s):  
Xiaojun Bi ◽  
Luhua Wang ◽  
Qiang Ma ◽  
Baoquan Hu ◽  
Qinfen Xu
Keyword(s):  
Bandpass Filter ◽  
Multi Mode ◽  
Mode Resonator
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