Compact tuneable single and dual mode ferrite left-handed coplanar waveguide coupled line couplers

2009 ◽  
Vol 3 (4) ◽  
pp. 695 ◽  
Author(s):  
M.A. Abdalla ◽  
Z. Hu
Keyword(s):  
Coplanar Waveguide ◽  
Dual Mode ◽  
Coupled Line ◽  
Left Handed

scholarly journals A Compact High-Pass Filter Using Hybrid Microstrip/Nonuniform CPW with Dual-Mode Resonant Response

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Hui Chen ◽  
Di Jiang ◽  
Ke-Song Chen ◽  
Hong-Fei Zhao
Keyword(s):  
Printed Circuit Board ◽  
Coplanar Waveguide ◽  
Cutoff Frequency ◽  
Circuit Board ◽  
Dual Mode ◽  
Pass Filter ◽  
High Pass Filter ◽  
Mode Characteristic ◽  
High Pass ◽  
Good Agreement

A novel and miniature high-pass filter (HPF) based on a hybrid-coupled microstrip/nonuniform coplanar waveguide (CPW) resonator is proposed in this article, in which the designed CPW has exhibited a wideband dual-mode characteristic within the desired high-pass frequency range. The implemented filter consists of the top microstrip coupled patches and the bottom modified nonuniformly short-circuited CPW resonator. Simulated results from the electromagnetic (EM) analysis software and measured results from a vector network analyzer (VNA) show a good agreement. A designed and fabricated prototype filter having a 3 dB cutoff frequency (fc) of 5.78 GHz has shown an ultrawide high-pass behavior, which exhibits the highest passband frequency exceeding 4.0fcunder the minimum insertion loss (IL) 0.75 dB. The printed circuit board (PCB) area of the filter is approximately0.062λg×0.093λg, whereλgis the guided wavelength atfc.

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