scholarly journals Compact Ultra-Wide Band Bandpass Filter Design Employing Multiple-Mode Resonator and Defected Ground Structure

2015 ◽  
Vol 73 ◽  
pp. 376-383 ◽  
Author(s):  
Hassiba Louazene ◽  
Mouloud Challal ◽  
M’hamed Boulakroune
Keyword(s):  
Bandpass Filter ◽  
Filter Design ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Multiple Mode ◽  
Mode Resonator

Design of ultra-wide band (UWB) bandpass filter based on defected ground structure

2007 ◽  
Vol 49 (6) ◽  
pp. 1374-1377 ◽  
Author(s):  
Guo-Min Yang ◽  
Gaobiao Xiao ◽  
Ronghong Jin ◽  
Junping Geng ◽  
Wei He ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Defected Ground Structure ◽  
Ground Structure

scholarly journals X-Band Microstrip Bandpass Filter Design using Square Loop Resonator and Defected Ground Structure

2020 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
E. Edwar ◽  
M.R. Yusron ◽  
Dharu Arseno
Keyword(s):  
Bandpass Filter ◽  
Filter Design ◽  
Radar System ◽  
Center Frequency ◽  
Q Factor ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Telecommunication System ◽  
X Band

Filter is an important part in telecommunication system including in radar system. To get the better performance in selecting the signal, a ftlter must have a good Q-Factor. In this paper, an investigation of a ftlter design for synthetic radar has been successfully done. This ftlter has been designed to work at x-band using square loop resonator (SLR). A Defected Ground Structure (DGS) has been implemented to this work to increase the Q-factor of the ftlter. The result of measurement getting that the center frequency at 9.51 GHz with the bandwidth 610 MHz and PCB size of this ftlter is 22 mm x 16 mm.

Planar microstrip UWB bandpass filter with quad notched bands and high selectivity

2021 ◽  
Vol 14 ◽  
Author(s):  
Mingming Gao ◽  
Keda Xu ◽  
Jingchang Nan ◽  
Li Wang
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
The Other ◽  
Ultra Wideband ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Notched Band ◽  
Quad Notched Bands ◽  
Mode Resonator ◽  
Insufficient Number

Background: Aiming at solving the problems of large design size and insufficient number of notched band for traditional ultra-wideband (UWB) filters, a planar compact microstrip UWB bandpass filter (BPF) with quad notched bands and good selectivity is proposed using a modified multiple-mode resonator (MMR) and defected ground structure (DGS). Methods: The MMR consists of a stepped impedance stub above and two pairs of open-circuited stubs on both sides, which c an generate the passband and double notched bands of UWB filter, the other two notched bands are obtained by DGS. Results: The UWB filter with quad notched bands respectively centered at 3.9GHz, 5.7GHz, 7.9GHz, and 9.8GHz is fabricated and measured. Conclusion: The measured results are basically consistent with the simulated results, which proves the correctness and practicability of the UWB filter.

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