Comments on “Description of Coupling Between Degenerate Modes of a Dual-Mode Microstrip Loop Resonator Using a Novel Perturbation Arrangement and Its Dual-Mode Bandpass Filter Applications”

2004 ◽  
Vol 52 (9) ◽  
pp. 2190-2192 ◽  
Author(s):  
S. Amari
Keyword(s):  
Bandpass Filter ◽  
Dual Mode ◽  
Degenerate Modes

scholarly journals A Miniaturized Dual-Mode Bandpass Filter Using Slot Spurline Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Haiwen Liu ◽  
Jiuhuai Lei ◽  
Jing Wan ◽  
Yan Wang ◽  
Feng Yang ◽  
...  
Keyword(s):  
Elliptic Function ◽  
Bandpass Filter ◽  
Dual Mode ◽  
Wave Simulation ◽  
Full Wave ◽  
Filter Characteristic ◽  
Simulation Results ◽  
Degenerate Modes ◽  
Good Agreement

A miniaturized dual-mode bandpass filter (BPF) with elliptic function response using slot spurline is designed in this paper. The slot spurline can not only splits the degenerate modes but also determine the type of filter characteristic (Chebyshev or elliptic). To miniaturize the resonator, four sagittate stubs are proposed. For demonstration purpose, a BPF operating at 5.75 GHz for WLAN application was designed, fabricated, and measured. The measured results are in good agreement with the full-wave simulation results.

Develop Dual-Mode DGS Bandpass Filters Using High Quality Factor Aluminum Oxide Ceramic Substrates

2012 ◽  
Vol 512-515 ◽  
pp. 1115-1118
Author(s):  
Chien Min Cheng ◽  
Kai Huang Chen ◽  
Yuan Tai Hsieh ◽  
Fuh Cheng Jong ◽  
Shih Fang Chen
Keyword(s):  
Aluminum Oxide ◽  
Bandpass Filter ◽  
Ground Plane ◽  
Oxide Ceramic ◽  
Microwave Dielectric Ceramic ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Dual Mode ◽  
Microwave Dielectric ◽  
Degenerate Modes

Aluminum Oxide microwave dielectric ceramics exhibit good microwave dielectric characteristics and suitable be used in the microwave devices. In this letter, using screen-printing technique and Ag/Pd paste, a novel dual-mode 2.4 GHz microstrip bandpass filter with U-shaped defected ground structure is screen printed on the Aluminum Oxide (Al2O3, relative dielectric constant=9.8) microwave dielectric ceramic substrate. In addition, a pair of input/output microstrip lines are designed to be 50 Ω and coupled to a λ/4×λ/4 square loop resonator. And in the ground plane, a U-shaped defected ground structure is used toλ excite the degenerate modes, which can be considered as a perturbation element to control the odd-mode frequency and -3 dB bandwidth of the bandpass filter. Finally, the coupling effects between these degenerate modes are presented and detailed investigated.

HIGH SELECTIVITY DUAL-MODE BANDPASS FILTER WITH SOURCE-LOADED COUPLING

2010 ◽  
Vol 18 ◽  
pp. 187-194 ◽  
Author(s):  
Xue-Shun Zhang ◽  
Yong-Jiu Zhao ◽  
Hong-Wei Deng ◽  
Lu Zhang ◽  
Wen Chen
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Dual Mode

4-GHz band bandpass filter using orthogonal array coupling TM110 dual mode dielectric resonator

1990 ◽  
Vol 73 (10) ◽  
pp. 10-18
Author(s):  
Toshio Nishikawa ◽  
Youhei Ishikawa ◽  
Jun Hattori ◽  
Yoshio Kobayashi
Keyword(s):  
Orthogonal Array ◽  
Dielectric Resonator ◽  
Bandpass Filter ◽  
Dual Mode

Compact Dual-Mode Bandpass Filter with Wide Stopband Using Capacitance Loaded Square Meander Loop Resonator

2016 ◽  
Vol 90 (3) ◽  
pp. 1433-1442
Author(s):  
Qi Duan ◽  
Kaijun Song ◽  
Maoyu Fan ◽  
Yu Zhu ◽  
Fulong Chen
Keyword(s):  
Bandpass Filter ◽  
Dual Mode

Design of dual-mode bandpass filter using SRR structure

2010 ◽  
Vol 52 (10) ◽  
pp. 2372-2375 ◽  
Author(s):  
Ming Zhou ◽  
Chuang-ming Tong ◽  
Shu-hong Fu ◽  
Li-nan Wu
Keyword(s):  
Bandpass Filter ◽  
Dual Mode

Miniaturized dual‐mode sector patch bandpass filter using a single via‐hole

2020 ◽  
Author(s):  
Jiawei Liu ◽  
Yonghong Zhang ◽  
Lili Qu ◽  
Huaishu Jing
Keyword(s):  
Bandpass Filter ◽  
Dual Mode ◽  
Via Hole
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