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2013-03-13
Inline TE01δ Mode Dielectric-Resonator Filters with Controllable Transmission Zero for Wireless Base Stations
By
Progress In Electromagnetics Research Letters, Vol. 38, 101-110, 2013
Abstract
A method to control the transmission zero of TE01δ mode dielectric-resonator (DR) filters for wireless base stations is proposed. Instead of using folder structures, dedicated coupling probes, or extra cavities, as required by conventional techniques, transmission zeros are realized. The feeding probes, extended along ring dielectric resonators, are used to excite the TE01δ mode and introduce transmission zeros. By rotating the angle of feeding position, transmission zeros can be shifted to the lower or the upper stopband. Thus, TE01δ mode dielectric resonator filters with quasi-elliptic responses are realized with only iris coupling components. Based on this method, fourth-order inline TE01δ mode DR filters with different responses are designed and fabricated. Measured results confirm the predicted performance.
Citation
Xiao Ouyang, and Bo-Yong Wang, "Inline TE01δ Mode Dielectric-Resonator Filters with Controllable Transmission Zero for Wireless Base Stations," Progress In Electromagnetics Research Letters, Vol. 38, 101-110, 2013.
doi:10.2528/PIERL13012001
References

1. Kuo, J. -T. and S. -W. Lai, "New dual-band bandpass filter with wide upper rejection band," Progress In Electromagnetics Research, Vol. 123, 371-384, 2012.
doi:10.2528/PIER11112304

2. Weng, M.-H., S.-K. Liu, H.-W. Wu, and C.-H. Hung, "Stopband-extended balanced filters using both λ/4 and λ/2 SIRs with common-mode suppression and improved passband selectivity," Progress In Electromagnetics Research, Vol. 128, 215-228, 2012.

3. Chen, W.-Y., M.-H. Weng, S.-J. Chang, H. Kuan, and Y.-H. Su, "A new tri-band bandpass filter for GSM, WIMAX and ultra-wideband responses by using asymmetric stepped impedance resonators," Progress In Electromagnetics Research, Vol. 124, 365-381, 2012.
doi:10.2528/PIER11122010

4. Cohn, S. B., "Microwave bandpass filters containing high-Q dielectric resonators," IEEE Trans. Microw. Theory Tech., Vol. 16, No. 4, 210-218, 1968.
doi:10.1109/TMTT.1968.1126653

5. Saliminejad, R. and M. R. Ghafourifard, "A novel and accurate method for designing dielectric resonator filter," Progress In Electromagnetics Research B, Vol. 8, 293-306, 2008.
doi:10.2528/PIERB08070602

6. Wang, C. and K. A. Zaki, "Dielectric resonators and filters," IEEE Microwave Magazine, Vol. 8, No. 5, 115-127, 2007.
doi:10.1109/MMM.2007.903648

7. Fiedziuszko, S. J., I. C. Hunter, T. Itoh, et al. "Dielectric materials, devices, and Circuits," IEEE Trans. Microw. Theory Tech., Vol. 50, No. 3, 706-720, 2002.
doi:10.1109/22.989956

8. Liang, J.-F. and W. D. Blair, "High-Q TE01 mode DR filters for PCS wireless base stations," IEEE Trans. Microw. Theory Tech., Vol. 46, No. 12, 2493-2500, 1998.
doi:10.1109/22.739239

9. Wang, C., H.-W. Yao, K. A. Zaki, and R. R. Mansour, "Mixed modes cylindrical planar dielectric resonator filters with rectangular enclosure," IEEE Trans. Microw. Theory Tech., Vol. 43, No. 12, 2817-2823, 1995.
doi:10.1109/22.475640

10. Liang, J. -F., K. A. Zaki, and A. E. Atia, "Mixed modes dielectric resonator filters," IEEE Trans. Microw. Theory Tech., Vol. 42, No. 12, 2449-2454, 1994.
doi:10.1109/22.339780

11. Fiedziuszko, S. J., "Dielectric resonator design shrinks satellite filters and resonators," Microwave Systems News, Vol. 15, No. 9, 97-112, 1985.

12. Fiedziuszko, S. J., "Dual-mode dielectric resonator loaded cavity filters," IEEE Trans. Microw. Theory Tech., Vol. 30, No. 9, 1311-1316, 1982.
doi:10.1109/TMTT.1982.1131253

13. Zaki, K. A., C. Chen, and A. E. Atia, "Canonical and longitudinal dual-mode dielectric resonator filters without iris," IEEE Trans. Microw. Theory Tech., Vol. 35, No. 12, 1130-1135, 1987.
doi:10.1109/TMTT.1987.1133827

14. Bastioli, S. and R. V. Snyder, "In-line pseudoelliptic TE01δ mode dielectric resonator filters," IEEE MTT-S. Int. Microw. Symp. Dig., 1-3, Montreal, QC, Canada, 2012.

15. Macchiarella, G., "Synthesis of prototype filters with triplet sections starting from source and load," IEEE Microwave Wireless Compon. Lett., Vol. 12, No. 2, 42-44, 2002.
doi:10.1109/7260.982871