Dual-mode quasi-elliptic-function bandpass filters using ring resonators with enhanced-coupling tuning stubs

作者: Lung-Hwa Hsieh , Kai Chang

DOI: 10.1109/22.999148

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摘要: A novel microwave dual-mode quasi-elliptic-function bandpass filter structure has been designed and fabricated. The uses L-shaped coupling arms for enhanced excitation. effects of varying the length tuning stubs gap size between ring resonator have studied. Filters using multiple cascaded resonators with high rejection band are presented. new filters verified by simulation measurement good agreement.

参考文章(18)
George Lawrence Matthaei, Leo Young, Edward McClung Thompson Jones, Microwave Filters, Impedance-Matching Networks, and Coupling Structures ,(1980)
M. Reppel, H. Chaloupka, Novel approach for narrowband superconducting filters international microwave symposium. ,vol. 4, pp. 1563- 1566 ,(1999) , 10.1109/MWSYM.1999.780255
L. Nenert, D. Denis, L. Billonnet, B. Jarry, P. Guillon, Analysis and optimization of noise and gain performances for various topologies of microwave ring resonator planar active filters international microwave symposium. ,vol. 3, pp. 1223- 1226 ,(1999) , 10.1109/MWSYM.1999.779607
Woo-Chul Jung, Hyun-Joo Park, Jong-Chul Lee, Microstrip ring bandpass filters with new interdigital side-coupling structure asia pacific microwave conference. ,vol. 3, pp. 678- 681 ,(1999) , 10.1109/APMC.1999.833682
A. Griol, J. Marti, Microstrip multistage coupled ring active bandpass filters with harmonic suppression Electronics Letters. ,vol. 35, pp. 575- 577 ,(1999) , 10.1049/EL:19990365
J.S. Hong, M.J. Lancaster, Bandpass characteristics of new dual-mode microstrip square loop resonators Electronics Letters. ,vol. 31, pp. 891- 892 ,(1995) , 10.1049/EL:19950591
Kwok-Keung M. Cheng, Design of dual-mode ring resonators with transmission zeros Electronics Letters. ,vol. 33, pp. 1392- 1393 ,(1997) , 10.1049/EL:19970947
Lung-Hwa Hsieh, Kai Chang, Compact dual-mode elliptic-function bandpass filter using a single ring resonator with one coupling gap Electronics Letters. ,vol. 36, pp. 1626- 1627 ,(2000) , 10.1049/EL:20001172