Design of compact microstrip lowpass filters using coupled half-circle defected ground structures (DGSs)

2008 ◽  
Author(s):  
A. Boutejdar ◽  
A. Sherbini ◽  
W. Ali ◽  
S. Fouad ◽  
L. Ahmed ◽  
...  
Keyword(s):  
Defected Ground Structures ◽  
Ground Structures

Phase shifter with high phase shifts using defected ground structures

2005 ◽  
Vol 41 (4) ◽  
pp. 196 ◽  
Author(s):  
S.M. Han ◽  
C.-S. Kim ◽  
D. Ahn ◽  
T. Itoh
Keyword(s):  
Phase Shifter ◽  
Phase Shifts ◽  
Defected Ground Structures ◽  
Ground Structures ◽  
High Phase

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.

Design of a planar ultra-wideband four-way power divider/combiner using defected ground structures

2017 ◽  
Author(s):  
Michele Squartecchia ◽  
Bruno Cimoli ◽  
Virginio Midili ◽  
Tom K. Johansen ◽  
Vitaliy Zhurbenko
Keyword(s):  
Ultra Wideband ◽  
Power Divider ◽  
Defected Ground Structures ◽  
Ground Structures

Circular Aperture Slot Antenna With Common-Mode Rejection Filter Based on Defected Ground Structures for Broad Band

2013 ◽  
Vol 61 (5) ◽  
pp. 2425-2431 ◽  
Author(s):  
Edgar Colin-Beltran ◽  
Alonso Corona-Chavez ◽  
Tatsuo Itoh ◽  
J. Eduardo Mendoza-Torres
Keyword(s):  
Broad Band ◽  
Slot Antenna ◽  
Circular Aperture ◽  
Common Mode ◽  
Rejection Filter ◽  
Defected Ground Structures ◽  
Ground Structures
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