Quadruple-Mode Wideband Bandpass Filter with Improved Out-of-Band Rejection
Abstract
:1. Introduction
2. Quadruple-Mode Resonator
2.1. Configuration and Characteristics
2.2. Parametric Optimization
3. Bandpass Filter Design
3.1. Coupling Mechanism
3.2. Q-factors
3.3. Out-of-Band Rejection
3.4. Power Handling Capability
3.5. Filter Realization
4. Experimental Results and Discussions
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
- Williams, A.E. A Four-Cavity Elliptic Waveguide Filter. IEEE Trans. Microw. Theory Tech. 1970, 18, 1109–1114. [Google Scholar] [CrossRef]
- Atia, A.E.; Williams, A.E. Narrow-Bandpass Waveguide Filters. IEEE Trans. Microw. Theory Tech. 1972, 20, 258–265. [Google Scholar] [CrossRef]
- Atia, A.E.; Williams, A.E.; Newcomb, R.W. Narrow-Band Multiple-Coupled Cavity Synthesis. IEEE Trans. Circ. Syst. 1974, 21, 649–655. [Google Scholar] [CrossRef]
- Wang, Y.; Yu, M. True inline cross-coupled coaxial cavity filters. IEEE Trans. Microw. Theory Tech. 2009, 57, 2958–2965. [Google Scholar] [CrossRef]
- Zhang, Q.; Lu, Y. Dimensional Synthesis of Symmetric Wideband Waveguide Cross-Coupled Filters without Global Full-Wave Optimization. IEEE Trans. Microw. Theory Tech. 2010, 58, 3742–3748. [Google Scholar] [CrossRef]
- Zhu, L.; Sun, S.; Menzel, W. Ultra-Wideband (UWB) bandpass filters using multiple mode resonator. IEEE Microw. Wirel. Compon. Lett. 2005, 15, 796–798. [Google Scholar] [CrossRef]
- Wang, H.; Zhu, L.; Menzel, W. Ultra-wideband bandpass filter with hybrid microstrip/CPW structure. IEEE Microw. Wirel. Compon. Lett. 2005, 15, 844–846. [Google Scholar] [CrossRef] [Green Version]
- Liu, Z.; Xiao, G.; Zhu, L. A Novel Method to Design Triple-Mode SIW Filter Based on the Complementary Split Ring Resonators (CSRRs). IEEE MTT-S Int. Microw. Symp. Dig. 2016, 4–6. [Google Scholar] [CrossRef]
- Liu, Z.; Xiao, G.; Zhu, L. Triple-Mode Bandpass Filters on CSRR-Loaded Substrate Integrated Waveguide Cavities. IEEE Trans. Compon. Packag. Manuf. Technol. 2016, 6, 1101–1107. [Google Scholar] [CrossRef]
- Hameed, M.; Xiao, G.; Qiu, L.; Xiong, C.; Hameed, T. Multiple-ModeWideband Bandpass Filter Using Split Ring Resonators in a Rectangular Waveguide Cavity. Electronics 2018, 7, 356. [Google Scholar] [CrossRef]
- Lin, W.G. Microwave Filters Employing a Single Cavity Excited in More than One Mode. J. Appl. Phys. 1951, 22, 989–1001. [Google Scholar] [CrossRef]
- Fiedziuszko, S.J. Dual-mode dielectric resonator loaded cavity filters. IEEE Trans. Microw. Theory Tech. 1982, 30, 1311–1316. [Google Scholar] [CrossRef]
- Memarian, M.; Mansour, R.R. Quad-mode and dual-mode dielectric resonator filters. IEEE Trans. Microw. Theory Tech. 2009, 57, 3418–3426. [Google Scholar] [CrossRef]
- Tang, W.-C.; Chaudhuri, S.K. A true elliptic-function filter using triple-mode degenerate cavities. IEEE Trans. Microw. Theory Tech. 1984, 32, 1449–1454. [Google Scholar] [CrossRef]
- Salehi, H.; Bernhardt, T.; Lukkarila, T.; Amir, S. Analysis, design and applications of the triple-mode conductor-loaded cavity filter. IET Microw. Antennas Propag. 2011, 5, 1136–1142. [Google Scholar] [CrossRef]
- Bonetti, R.R.; Williams, A.E. Application of Dual TM Modes to Triple-and Quadruple-Mode Filters. IEEE Trans. Microw. Theory Tech. 1987, 35, 1143–1149. [Google Scholar] [CrossRef]
- Liang, X.-P.; Zaki, K.A.; Atia, A.E. Dual Mode Coupling by Square Corner Cut in Resonators and Filters. IEEE Trans. Microw. Theory Tech. 1992, 40, 2294–2302. [Google Scholar] [CrossRef]
- Wang, X.; Jang, G.; Lee, B.; Park, N. Compact quad-mode bandpass filter using modified coaxial cavity resonator with improved Q-factor. IEEE Trans. Microw. Theory Tech. 2015, 63, 965–975. [Google Scholar] [CrossRef]
- Wong, S.-W.; Feng, S.-F.; Zhu, L. Triple- and quadruple-mode wideband bandpass. IEEE Trans. Microw. Theory Tech. 2015, 63, 3416–3424. [Google Scholar] [CrossRef]
- Hameed, M.; Xiao, G.; Qiu, L. Triple-mode wideband bandpass filter using simple perturbation in metallic-loaded rectangular waveguide cavity. Electromagnetics 2018, 38, 303–316. [Google Scholar] [CrossRef]
- Hameed, M.; Xiao, G.; Xiong, C. Triple-mode wideband bandpass filter using triangular waveguide cavity. In Proceedings of the IEEE MTT-S IWS, Chengdu, China, 6–10 May 2018; pp. 1–3. [Google Scholar]
- Cameron, R.J. Advanced coupling matrix synthesis techniques for microwave filters. IEEE Trans. Microw. Theory Tech. 2003, 51, 1–10. [Google Scholar] [CrossRef]
- Meng, M.; Wu, K.-L. An analytical approach to computer-aided diagnosis and tuning of lossy microwave coupled resonator filters. IEEE Trans. Microw. Theory Tech. 2009, 57, 3188–3195. [Google Scholar] [CrossRef]
Ref. | Modes/Order | Cavity Size | Centre Freq. (GHz) | FBW (%) | Out-of-band Rejection | Measured Insertion Loss (dB) |
---|---|---|---|---|---|---|
[15] | 3/6th | 2*(0.4*0.4*0.4) | 2.10 | 2.1 | 1.63, >60 dB | <0.6 |
[18] | 4/8th | 2*(0.18*0.13*0.18) | 2.55 | 3.9 | 3, >60 dB | <0.77 |
[19] | 3/3rd | Φ0.5*0.5 | 3.2 | 30 | 1.5, >20 dB | <0.5 |
[19] | 4/4th | Φ0.5*0.5 | 3.2 | 31 | 1.4, >20 dB | <0.5 |
[20] | 3/3rd | 0.41*0.2*0.41 | 2.4 | 58 | 2, >20 dB | <0.1 |
[21] | 3/3rd | 1/2*0.43*0.5*0.5 | 2.94 | 22 | 1.27, >10 dB | <0.1 |
This work | 4/4th | 0.5*0.2*0.5 | 2.93 | 38 | 2.32, >30 dB | <0.06 |
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Hameed, M.; Xiao, G.; Najam, A.I.; Qiu, L.; Hameed, T. Quadruple-Mode Wideband Bandpass Filter with Improved Out-of-Band Rejection. Electronics 2019, 8, 300. https://doi.org/10.3390/electronics8030300
Hameed M, Xiao G, Najam AI, Qiu L, Hameed T. Quadruple-Mode Wideband Bandpass Filter with Improved Out-of-Band Rejection. Electronics. 2019; 8(3):300. https://doi.org/10.3390/electronics8030300
Chicago/Turabian StyleHameed, Musab, Gaobiao Xiao, Ali Imran Najam, Lina Qiu, and Tayyab Hameed. 2019. "Quadruple-Mode Wideband Bandpass Filter with Improved Out-of-Band Rejection" Electronics 8, no. 3: 300. https://doi.org/10.3390/electronics8030300
APA StyleHameed, M., Xiao, G., Najam, A. I., Qiu, L., & Hameed, T. (2019). Quadruple-Mode Wideband Bandpass Filter with Improved Out-of-Band Rejection. Electronics, 8(3), 300. https://doi.org/10.3390/electronics8030300