A compact bandpass filter using microstrip slow-wave open-loop resonators with high impedance lines

2003 ◽  
Vol 38 (3) ◽  
pp. 185-187 ◽  
Author(s):  
Soonsoo Oh ◽  
Youngsik Kim
Keyword(s):  
Slow Wave ◽  
Bandpass Filter ◽  
Open Loop ◽  
High Impedance

Compact slow-wave millimeter-wave bandpass filter (BPF) using open-loop resonator

2016 ◽  
Author(s):  
Hussein N. Shaman ◽  
Waleed A. Alomar ◽  
Ahmed O. AlAmoudi ◽  
Sultan K. Almorqi ◽  
Saleh A. Alshebeili
Keyword(s):  
Millimeter Wave ◽  
Slow Wave ◽  
Bandpass Filter ◽  
Open Loop

Design of Quasi-Elliptic Bandpass Filter Based on Slow-Wave Open-Loop Resonators

2008 ◽  
Vol 22 (13) ◽  
pp. 1849-1856 ◽  
Author(s):  
X.-C. Zhang ◽  
J. Xu ◽  
Z.-Y. Yu
Keyword(s):  
Slow Wave ◽  
Bandpass Filter ◽  
Open Loop

Design and Fabrication of a Novel Compact Bandpass Filter to Improve Spurious-Free Band

Frequenz ◽  
2017 ◽  
Vol 71 (3-4) ◽  
Author(s):  
Payman Rezaee ◽  
Michael Höft
Keyword(s):  
Quality Factor ◽  
Slow Wave ◽  
Bandpass Filter ◽  
Coupling Factor ◽  
Open Loop ◽  
External Quality ◽  
Full Wave ◽  
Measurement Results ◽  
Free Band ◽  
Good Agreement

AbstractIn this paper, a new microstrip slow wave open loop resonator is proposed. This resonator overcomes the substantial limitation of the conventional slow wave open loop resonators, which limits the spurious-free band of those resonators. The new proposed resonator improves the spurious-free band up to 8 times of the fundamental frequency, which is 3.16 times of the conventional slow wave open loop resonators. For the proposed resonator the coupling factor and the external quality factor curves, which are the design curves of a narrowband filter, are extracted using a full wave simulator, i. e. HFSS. These curves are utilized for the design of two three-pole Chebyshev bandpass filters. One of these filters is fabricated. Simulation and measurement results are reported which are in good agreement. Designed filters provide 75 % and 83 % of footprint reduction in comparison with the conventional open loop resonator filters. Different parameters which can improve the spurious-free band are explained in the paper.

scholarly journals A polygonal open-loop resonator compact bandpass filter for Bluetooth and WLAN applications

2018 ◽  
Vol 433 ◽  
pp. 012083
Author(s):  
A J Salim ◽  
A N Alkhafaji ◽  
M S Taha ◽  
J K Ali
Keyword(s):  
Bandpass Filter ◽  
Open Loop

Analisa Elemen Multiarms Resonator Open Loop Pada Band-Pass Filter Mikrostrip Yang Bekerja Di Frekuensi EHF

2021 ◽  
Vol 8 (2) ◽  
pp. 93-104
Author(s):  
M. Reza Hidayat ◽  
Difa Dwi Juliantara Sukmawan
Keyword(s):  
Bandpass Filter ◽  
Open Loop ◽  
Band Pass Filter ◽  
Pass Filter ◽  
A Value ◽  
Resonator Design ◽  
Band Pass ◽  
Patch Width ◽  
Simulation Results ◽  
Patch Length

The use of bandpass filters is commonly used but the use of specifications varies depending on needs, in this case the microstrip bandpass filter is expected to observe the multiarms characteristics of the open loop resonator on the performance of the bandpass filter for EHF frequencies. The design of this microstrip bandpass filter uses a multiarms open loop resonator design where at the beginning of the simulation stage uses only 1 arm with patch width, arm spacing, feeder line width and patch length based on trial and error. The final simulation results are obtained with a connector distance of 2 mm and a distance of 1 mm between arms with a value of S11 = -13.8 dB and S21 = -2.8 dB at a frequency of 30.8 GHz based on the simulation results. The filter has been successfully fabricated but cannot be measured because the frequency is too high and the measuring instrument cannot measure the frequency

An Improved Microstrip Open-Loop Resonator Bandpass Filter with DGSS for WLAN Application

2009 ◽  
Vol 23 (4) ◽  
pp. 463-472 ◽  
Author(s):  
Y. C. Guo ◽  
L. H. Weng ◽  
X. W. Shi
Keyword(s):  
Bandpass Filter ◽  
Open Loop
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