Analysis, design and applications of the triple-mode conductor-loaded cavity filter

作者: H. Salehi , T. Bernhardt , T. Lukkarila , S. Amir

DOI: 10.1049/IET-MAP.2010.0020

关键词: Electronic engineeringMaterials scienceHelical resonatorQ factorMicrowave cavityAcousticsDielectric resonator antennaWaveguide filterDielectric resonatorHFSSResonator

摘要: This study presents the analysis and design of a new triple-mode filter that employs recently proposed triple mode conductor-loaded cavity resonator. The resonator consists cubic-shaped metallic structure suspended in enclosure. is mounted through low-loss low-dielectric-constant support structure. considerably cheaper, easier to manufacture, offers significantly wider spurious-free response comparison with dielectric A six-pole designed using Ansoft HFSS employing shows introducing asymmetry into form chamfers or corner cuts creates necessary perturbation achieve required coupling between degenerate modes inside each block realise desired response. fabricated tested. Finally, two applications concept are identified. combined higher Q-factor ceramic resonators small size, high wide Also, direct-coupled band-stop filter.

参考文章(12)
R.V. Snyder, Dielectric resonator filters with wide stopbands IEEE Transactions on Microwave Theory and Techniques. ,vol. 40, pp. 2100- 2103 ,(1992) , 10.1109/22.168769
L.H. Chua, D. Mirshekar-Syahkal, Analysis of dielectric loaded cubical cavity for triple-mode filter design IEE Proceedings: Microwaves, antennas and propagation, ISSN 1350-2417, Vol. 151, Nº 1, 2004, págs. 61-66. ,vol. 151, pp. 61- 66 ,(2004) , 10.1049/IP-MAP:20040125
V. Walker, I.C. Hunter, Design of triple mode TE 01 spl delta// resonator transmission filters IEEE Microwave and Wireless Components Letters. ,vol. 12, pp. 215- 217 ,(2002) , 10.1109/LMWC.2002.1009999
I.C. Hunter, J.D. Rhodes, V. Dassonville, Dual-mode filters with conductor loaded dielectric resonators international microwave symposium. ,vol. 47, pp. 2304- 2311 ,(1999) , 10.1109/22.808975
H. Salehi, R.R. Mansour, V. Dokas, Modified conductor loaded cavity resonator with improved spurious performance international microwave symposium. ,vol. 3, pp. 1779- 1782 ,(2001) , 10.1109/MWSYM.2001.967251
Chi Wang, K.A. Zaki, A.E. Atia, T.G. Dolan, Conductor loaded resonator filters with wide spurious free stop band international microwave symposium. ,vol. 45, pp. 2387- 2392 ,(1997) , 10.1109/22.643849
Chi Wang, W. Wilber, B. Engst, A practical triple-mode monoblock bandpass filter for base station applications international microwave symposium. ,vol. 3, pp. 1783- 1786 ,(2001) , 10.1109/MWSYM.2001.967252
S.B. Cohn, Microwave Bandpass Filters Containing High-Q Dielectric Resonators IEEE Transactions on Microwave Theory and Techniques. ,vol. 16, pp. 218- 227 ,(1968) , 10.1109/TMTT.1968.1126654
R.J. Cameron, Ming Yu, Ying Wang, Direct-coupled microwave filters with single and dual stopbands international microwave symposium. ,vol. 53, pp. 3288- 3297 ,(2005) , 10.1109/TMTT.2005.859032
W.H. Harrison, A Miniature High-Q Bandpass Filter Employing Dielectric Resonators IEEE Transactions on Microwave Theory and Techniques. ,vol. 16, pp. 210- 218 ,(1968) , 10.1109/TMTT.1968.1126653