Design of bandpass quasi-elliptic filter on cavity combline resonators for LTE frequency band

R. E. Semernya; S. L. Chernyshev; A. R. Vilenskij; V. V. Kuvshinov

doi:10.18127/j03209601-201810-05

Design of bandpass quasi-elliptic filter on cavity combline resonators for LTE frequency band

R. E. Semernya¹, S. L. Chernyshev², A. R. Vilenskij³, V. V. Kuvshinov⁴

research article UDC 621.372.543.2 Pages: 44-53 doi.org/10.18127/j03209601-201810-05

¹ Post-graduate student, Bauman Moscow State Technical University; Junior Research Scientist of Bauman Moscow State Technical University Research Institute, Leading Design Engineer in LLC “Radiocomp”
² Dr.Sc. (Eng.), Professor, Bauman Moscow State Technical University
³ Ph.D. (Eng.), Associate Professor, Bauman Moscow State Technical University; Leading Engineer, Samsung Research Institute Russia
⁴ Ph.D. (Eng.), Head of Department of Microwave Filters, LLC “Radiocomp”

Keywords: quasi-elliptic bandpass filter LTE 3G coupled air coaxial resonators coupling matrix cross couplings electromagnetic simulation

Abstract

The design procedure of quasi-elliptic passband filters for the LTE band (2170–2200 MHz) with high 3G band rejection has been presented. The general coupling matrix has been synthesized by applying a dedicated recursive technique. We propose a practical design for electrical coupling enhancement between air cavity combline resonators using a suspended substrate with printed conducting strips. First, scattering parameters of the designed filters have been obtained during simulations in Ansys HFSS. Next, a filter prototype has been fabricated and measured. Experimental and simulated results demonstrate perfect agreement. Finally, we have explored temperature stability of filter electrical performance.

How to cite

Семерня Р.Е., Чернышев C.Л., Виленский А.Р., Кувшинов В.В. Разработка полосового квазиэллиптического фильтра на воздушных коаксиальных резонаторах для LTE диапазона частот // Антенны. 2018. № 10. С. 44–53. DOI: https://doi.org/10.18127/j03209601-201810-05

References

Semernya R.E., Vilenskij A.R., Chernyshev S.L., Litun V.I. Mikropoloskovyj polosovoj fil'tr s kvaziellipticheskoj kharakteristikoj na korotkozamknutykh rezonatorakh // Radiolokatsiya, navigatsiya, svyaz'. 2016. S. 1266–1272.
Semernya R.E., Vilenskij A.R., Litun V.I. Razrabotka mikropoloskovykh fil'trov s primeneniem metoda momentov v spektral'noj oblasti // Radiolokatsiya, navigatsiya, svyaz'. 2014. S. 720–727.
Ting S.W., Tam K., Martins R.P. Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure // Microwave Symposium Digest. IEEE MTT-S International. 2006. P. 527–530.
Belyaev B.A. i dr. Miniatyurnyj polosno-propuskayushchij SVCh-fil'tr s podavleniem urovnya pomekh bolee 100 dB v shirokoj polose zagrazhdeniya // Pis'ma v Zhurnal tekhnicheskoj fiziki. 2013. T. 39. № 15. S. 47–55.
Arinin O.V., Aristarkhov G.M. Sverkhminiatyurnye vysokoizbiratel'nye fil'try SVCh na osnove shpilechnykh rezonatorov, nagruzhennykh na ukorachivayushchie kondensatory // Fundamental'nye problemy radioelektronnogo priborostroeniya. 2016. T. 16. № 5. S. 150–154.
Bunin A.V. i dr. Polosno-propuskayushchie fil'try Ku-diapazona na dielektricheskikh rezonatorakh. Bazovaya model' // Elektronnaya tekhnika. Ser. 1: SVCh-tekhnika. 2011. № 2. S. 4–12.
Hoft M. et al. Compact combline filter with improved cross coupling assembly and temperature compensation // Microwave Conference. APMC 2006. Asia-Pacific. 2006. P. 781–784.
Cameron R.J., Kudsia C.M., Mansour R. Microwave filters for communication systems. John Wiley & Sons. 2015.
Cameron R.J. General coupling matrix synthesis methods for Chebyshev filtering functions // IEEE Trans. Electron. 1999. V. 47. № 4. P. 433–442.
Hong J.S.G., Lancaster M.J. Microstrip filters for RF/microwave applications. John Wiley & Sons. 2004.
Mattej D.L. Fil'try SVCh, soglasuyushchie tsepi i tsepi svyazi. M.: Svyaz'. 1971.
Tkadlec R., Macchiarella G. Pseudoelliptic combline filter in a circularly shaped tube // 2018 IEEE/MTT-S International Microwave Symposium-IMS. IEEE. 2018. P. 1099–1102.
Wang Y., Yu M. True inline cross-coupled coaxial cavity filters // IEEE Trans. on Microwave Theory and Techniques. 2009. V. 57. № 12. P. 2958–2965.
Sirci S. et al. Quasi-elliptic filter based on SIW combline resonators using a coplanar line cross-coupling // Microwave Symposium (IMS). 2015 IEEE MTT-S International. 2015. P. 1–4.

[1] Semernya R.E., Vilenskij A.R., Chernyshev S.L., Litun V.I. Mikropoloskovyj polosovoj fil'tr s kvaziellipticheskoj kharakteristikoj na korotkozamknutykh rezonatorakh // Radiolokatsiya, navigatsiya, svyaz'. 2016. S. 1266–1272.

[2] Semernya R.E., Vilenskij A.R., Litun V.I. Razrabotka mikropoloskovykh fil'trov s primeneniem metoda momentov v spektral'noj oblasti // Radiolokatsiya, navigatsiya, svyaz'. 2014. S. 720–727.

[3] Ting S.W., Tam K., Martins R.P. Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure // Microwave Symposium Digest. IEEE MTT-S International. 2006. P. 527–530.

[4] Belyaev B.A. i dr. Miniatyurnyj polosno-propuskayushchij SVCh-fil'tr s podavleniem urovnya pomekh bolee 100 dB v shirokoj polose zagrazhdeniya // Pis'ma v Zhurnal tekhnicheskoj fiziki. 2013. T. 39. № 15. S. 47–55.

[5] Arinin O.V., Aristarkhov G.M. Sverkhminiatyurnye vysokoizbiratel'nye fil'try SVCh na osnove shpilechnykh rezonatorov, nagruzhennykh na ukorachivayushchie kondensatory // Fundamental'nye problemy radioelektronnogo priborostroeniya. 2016. T. 16. № 5. S. 150–154.

[6] Bunin A.V. i dr. Polosno-propuskayushchie fil'try Ku-diapazona na dielektricheskikh rezonatorakh. Bazovaya model' // Elektronnaya tekhnika. Ser. 1: SVCh-tekhnika. 2011. № 2. S. 4–12.

[7] Hoft M. et al. Compact combline filter with improved cross coupling assembly and temperature compensation // Microwave Conference. APMC 2006. Asia-Pacific. 2006. P. 781–784.

[8] Cameron R.J., Kudsia C.M., Mansour R. Microwave filters for communication systems. John Wiley & Sons. 2015.

[9] Cameron R.J. General coupling matrix synthesis methods for Chebyshev filtering functions // IEEE Trans. Electron. 1999. V. 47. № 4. P. 433–442.

[10] Hong J.S.G., Lancaster M.J. Microstrip filters for RF/microwave applications. John Wiley & Sons. 2004.

[11] Mattej D.L. Fil'try SVCh, soglasuyushchie tsepi i tsepi svyazi. M.: Svyaz'. 1971.

[12] Tkadlec R., Macchiarella G. Pseudoelliptic combline filter in a circularly shaped tube // 2018 IEEE/MTT-S International Microwave Symposium-IMS. IEEE. 2018. P. 1099–1102.

[13] Wang Y., Yu M. True inline cross-coupled coaxial cavity filters // IEEE Trans. on Microwave Theory and Techniques. 2009. V. 57. № 12. P. 2958–2965.

[14] Sirci S. et al. Quasi-elliptic filter based on SIW combline resonators using a coplanar line cross-coupling // Microwave Symposium (IMS). 2015 IEEE MTT-S International. 2015. P. 1–4.

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