scholarly journals A compact bandpass filter by use of defected ground structures

2011 ◽  
Vol 8 (17) ◽  
pp. 1431-1436 ◽  
Author(s):  
Maryam Jaldi ◽  
Majid Tayarani
Keyword(s):  
Bandpass Filter ◽  
Defected Ground Structures ◽  
Ground Structures

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 AND REALIZATION OF THREE-POLE BANDPASS FILTER WITH SPURIOUS RESPONSE SUPPRESSION USING DEFECTED GROUND STRUCTURES

2013 ◽  
Vol 45 ◽  
pp. 87-100
Author(s):  
Alia Zakriti ◽  
Naima Amar Touhami ◽  
Khadija Bargach ◽  
Mohammed Lamsalli ◽  
Mohammad Essaaidi
Keyword(s):  
Bandpass Filter ◽  
Response Suppression ◽  
Defected Ground Structures ◽  
Ground Structures ◽  
Spurious Response

scholarly journals ELECTRONICALLY SWITCHABLE ULTRA-WIDE BAND /DUAL-BAND BANDPASS FILTER USING DEFECTED GROUND STRUCTURES

2019 ◽  
Vol 91 ◽  
pp. 83-96 ◽  
Author(s):  
Eman Gamal Ouf ◽  
Esmat A. Abdallah ◽  
Ashraf Shawky Mohra ◽  
Hadia Mohamed Saeed El-Hennawy
Keyword(s):  
Bandpass Filter ◽  
Wide Band ◽  
Dual Band ◽  
Ultra Wide Band ◽  
Defected Ground Structures ◽  
Ground Structures

scholarly journals A Novel Wideband Bandpass Filter using H-shaped DGS

2018 ◽  
Vol 8 (4) ◽  
pp. 2021
Author(s):  
Van-Phuong Do ◽  
Duy-Manh Luong ◽  
Chi-Hieu Ta ◽  
Minh-Tan Doan
Keyword(s):  
Microstrip Line ◽  
Return Loss ◽  
Bandpass Filter ◽  
Ground Plane ◽  
Wireless Systems ◽  
Wide Band ◽  
Center Frequency ◽  
Dual Plane ◽  
Defected Ground Structures ◽  
Ground Structures

<p>This paper presents a novel compact wide-band bandpass filter (BPF) having good selectivity. It is designed using a dual-plane structure which consists of a parallel-coupled microstrip line on the upper surface and three H-shape defected ground structures (DGS) on the ground plane. By adding three H-shape DGS units on the ground plane, then properly adjusting their dimensions and position, the bandwidth and selectivity of the designed filter can be significantly improved. A compact prototype of wide-band microstrip bandpass filter has been designed, fabricated and measured for the wireless systems applications. The filter exhibits a center frequency at 4.8 GHz, passband from 2.8 GHz to 6.8 GHz with best insertion loss and return loss of 0.8 dB and 40 dB, respectively. The measured results agrees well with the theoretical expectations validating the proposed design.</p>

Sign in / Sign up

Export Citation Format

Share Document