Perturbation Element Effect on Frequency Stability in Dual Mode Reconfigurable Filters Based on Circular Microstrip Ring Resonators

• Autorzy: Albahnassi Muhammad Haitham , Malki Adnan , Almekdad Shokri

Identyfikatory

DOI

10.24425/ijet.2019.130256

• Języki publikacji: EN

Abstrakty

EN

A detailed study about the suitable perturbation element shape and location for tunable BW dual mode microstrip filter which has circular ring resonator is presented. BW tuning is achieved by resonator geometry modification. The study explains the effect of a perturbation element on the stability of the center frequency during BW tuning. Different cases have been studied for two shapes of perturbation element; which one is a rectangular and the other is a radial. The treated cases discuss whether the perturbation element is located in the inner or in the outer circumference of the ring, and whether it is a patch or a notch. BW tuning simulation treated the case of FBW3dB increase for two and three times. The best case of perturbation element which has the best center frequency stability has been modeled, simulated, and fabricated at 2.4 GHz. Geometry modification of the filter took into account the RF MEMS modeling. The filter has an elliptic frequency response, and its FBW has been increased in five steps from 1.7% to 5%. The designed filters were evaluated experimentally and by simulation with very good agreement.

Słowa kluczowe

EN

dual mode ring resonators; dual-mode filters; perturbation element arrangement; BW reconfigurability

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2019
• Tom: Vol. 65, No. 4
• Strony: 731--737
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Albahnassi Muhammad Haitham

• Telecommunication Department, Higher Institute for Applied Sciences and Technology (HIAST), Damascus, Syria

autor

Malki Adnan

• Telecommunication Department, Higher Institute for Applied Sciences and Technology (HIAST), Damascus, Syria

autor

Almekdad Shokri

• Telecommunication Department, Higher Institute for Applied Sciences and Technology (HIAST), Damascus, Syria

Bibliografia

• [1] K. Chang, Microwave Ring Circuits and Antennas, New York: Wiley, 1996.
• [2] I.Wolff, “Microstrip bandpass filter using degenerate modes of a microstrip ring resonator,” Electron Lett.,vol. 8, no. 12, pp. 302–303, June 15, 1972.
• [3] W.-D. Yan and R. R. Mansour, “Tunable dielectric resonator bandpass filter with embedded MEMS tuning elements,” IEEE Trans. Microw.Theory Techn., Vol. 55, no. 1, pp. 154–160, Jan. 2007.
• [4] S. Yonghyun, W. Zhengzheng, and M. Rais-Zadeh, “A high-performance continuously tunable mems bandpass filter at 1 GHz,” IEEE Trans. Microw. Theory Techn., vol. 60, no. 8, pp. 2439–2447, Aug. 2012.
• [5] J. Nath, D. Ghosh, J. P. Maria, A. I. Kingon, W. Fathelbab, P. D.Franzon, and M. B. Steer, “An electronically tunable microstrip bandpass filter Using Thin-Film Barium–Strontium–Titante (BST) varactors,” IEEE Trans. Microw. Theory Techn., vol. 53, no. 9, pp. 2707–2712, Sep. 2005.
• [6] H. Jiang, B. Lacroix, K. Choi, Y. Wang, A. T. Hunt, and J. Papapolymerou, “ Ka -and – U Band tunable bandpass filters using ferroelectric capacitors,” IEEE Trans. Microw. Theory Techn., vol. 59, no. 12, pp. 3068–3074, Dec. 2011.
• [7] L. H. Hsieh and K. Chang, “Tunable microstrip bandpass filters with two transmission zeros,” IEEE Trans. Microw. Theory Techn., vol. 51 no. 2, pp. 520–525, Feb. 2003.
• [8] T.-Y. Yun and K. Chang, “Piezoelectric-transducer-controlled tunable microwave circuits,” IEEE Trans. Microw. Theory Techn., vol. 50, no. 5, pp. 1303–1310, May 2002.
• [9] P. W. Wong and I. C. Hunter, “Electronically tunable filters,” IEEE Microw. Mag., vol. 10, no. 6, pp. 46–54, Oct. 2009.
• [10] W.-H. Tu, “Compact low-loss reconfigurable bandpass filter with switchable bandwidth,” IEEE Microw. Wireless Compon. Lett., vol. 20, no. 4, pp. 208–210, Apr. 2010.
• [11] T. S. Beukman and R. H. Geschke, “A tune-all wideband filter based on perturbed ring-resonators,” IEEE Microw. Wireless Compon. Lett.,vol. 23, no. 3, pp. 131–133, Mar. 2013.
• [12] W. Tang and J.-S. Hong, “Varactor-tuned dual-mode bandpass filters,” IEEE Trans. Microw. Theory Techn., vol. 58, no. 8, pp. 2213–2219, Aug. 2010.
• [13] Ali Kursad Gorur, Pinar Ozturk Ozdemir, Elif Gunturkun Sahin, Ceyhun Karpuz2 "A novel microstrip diplexer design with tunable bandwidths and switchable channels for 4.5G applications," Turkish Journal of Electrical Engineering & Computer Science, vol. 25, pp 4445- 4456,Aug 2017.
• [14] Ceyhun Karpuz1, Ali Kursad Gorur2, Ayse Nihan Basmaci3 "Design of tunable microstrip dual-mode bandpass filter having reconfigurable filtering characteristics for mobile applications," Proceedings of the 46th European Microwave Conference 4–6 Oct 2016, pp. 484–493, London, UK.
• [15] Ji-Chyun Liu, Chin-Shen Cheng, And Leo Yao,"Dual-mode double-ring resonator for microstrip band-pass filter design," Microwave And Optical Technology Letters, Vol. 36, no. 4, pp. 310–314, February 2003.
• [16] Hesham. A. Mohamed, Heba B. El-Shaarawy, Esmat. A.F. Abdallah1, and Hadia El-Hennawy "Reconfigurable compact dual mode resonators uwb-bpf using DGS and RF pin diodes," International Journal of Engineering & Technology IJET-IJENS vol:14 no.01, pp. 19–23, February 2014.
• [17] J. S. Hong and M. J. Lancaster, “Microstrip filters for RF/Microwave applications,” John Wiley & Sons, Inc., New York, 2001.
• [18] G. M. Rebeiz and J. B. Muldavin, “Rf MEMS Switches And Switch Circuits,” IEEE Microwave Magazine, vol. 2, no. 4, pp. 59–71, 2001.