Dual-Band High-Temperature Superconducting Bandpass Filter Using Dual-Mode Hairpin Ring Resonator

2016 ◽  
Vol 26 (7) ◽  
pp. 1-4 ◽  
Author(s):  
Haiwen Liu ◽  
Baoping Ren ◽  
Fan Liu ◽  
Xuehui Guan ◽  
Pin Wen ◽  
...  
Keyword(s):  
High Temperature ◽  
Bandpass Filter ◽  
Ring Resonator ◽  
Dual Band ◽  
Dual Mode ◽  
High Temperature Superconducting

Design and Analysis of Dual-Mode Double-Ring Resonator for Dual-Band Bandpass Filter Applications

2013 ◽  
Vol 321-324 ◽  
pp. 376-382
Author(s):  
Ming Wei Hsu ◽  
Man Long Her ◽  
Wen Ko ◽  
Yu Lin Wang
Keyword(s):  
Bandpass Filter ◽  
Ring Resonator ◽  
Relative Dielectric Constant ◽  
Capacitive Coupling ◽  
Ring Resonators ◽  
Dual Band ◽  
Center Frequency ◽  
Dual Mode ◽  
Double Ring ◽  
Single Ring

In this paper, two types of miniaturized dual-mode bandpass filters (BPF), a single-ring (SR) resonator, and a double-ring (DR) resonator are developed. By applying the capacitive-coupling technique to a dual-mode ring filter, a technique is proposed to miniaturize the dual-mode double-ring filter. An adjustable dual-band bandpass filter is achieved by developing a ring resonator where the two modes are capacitively coupled. Control of the filter center frequency is determined by the diameter of the ring and by the rings annular width. Filter coupling amount can also be adjusted by disturbance (perturbation) of an open stub attached to the annular disc. Proposed filters explore both single- and double-ring architectures. A single-ring resonator acting as a dual bandpass filter to allow 3.8 GHz and 7.8 GHz single is developed. A double-ring resonator to allow 2.05 GHz and 3.9 GHz signals is also developed. The ring resonators are fabricated on RO-4003 substrate, with relative dielectric constant of 3.38, thickness of 0.8 mm, and dielectric loss tangent of 0.0025. Results indicate the filters can be applied in the communications field.

Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter

2013 ◽  
Vol E96.C (8) ◽  
pp. 1033-1040
Author(s):  
Yuta TAKAGI ◽  
Kei SATOH ◽  
Daisuke KOIZUMI ◽  
Shoichi NARAHASHI
Keyword(s):  
High Temperature ◽  
Bandpass Filter ◽  
Dual Band ◽  
High Temperature Superconducting
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