Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Standard

Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes. / Guo, Cheng; Li, Jin; Yu, Yang; Zhang, Fan; Li, Sheng; Attallah, Moataz M.; Shang, Xiaobang; Zhang, Anxue; Wang, Yi; Lancaster, Michael J.

2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers (IEEE), 2019. p. 1205-1208 8700752 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Guo, C, Li, J, Yu, Y, Zhang, F, Li, S, Attallah, MM, Shang, X, Zhang, A, Wang, Y & Lancaster, MJ 2019, Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes. in 2019 IEEE MTT-S International Microwave Symposium, IMS 2019., 8700752, IEEE MTT-S International Microwave Symposium Digest, vol. 2019-June, Institute of Electrical and Electronics Engineers (IEEE), pp. 1205-1208, 2019 IEEE MTT-S International Microwave Symposium, IMS 2019, Boston, United States, 2/06/19. https://doi.org/10.1109/mwsym.2019.8700752

APA

Guo, C., Li, J., Yu, Y., Zhang, F., Li, S., Attallah, M. M., Shang, X., Zhang, A., Wang, Y., & Lancaster, M. J. (2019). Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes. In 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 (pp. 1205-1208). [8700752] (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/mwsym.2019.8700752

Vancouver

Guo C, Li J, Yu Y, Zhang F, Li S, Attallah MM et al. Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes. In 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers (IEEE). 2019. p. 1205-1208. 8700752. (IEEE MTT-S International Microwave Symposium Digest). https://doi.org/10.1109/mwsym.2019.8700752

Author

Guo, Cheng ; Li, Jin ; Yu, Yang ; Zhang, Fan ; Li, Sheng ; Attallah, Moataz M. ; Shang, Xiaobang ; Zhang, Anxue ; Wang, Yi ; Lancaster, Michael J. / Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes. 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers (IEEE), 2019. pp. 1205-1208 (IEEE MTT-S International Microwave Symposium Digest).

Bibtex

@inproceedings{f6bfa64363e447628b66cae06f166d8c,
title = "Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes",
abstract = "This paper proposes two methods to improve the spurious-free stopband range for high-quality-factor spherical resonators and a new family of shaped spherical resonators are presented. Geometrical shaping of the proposed resonators is realized by symmetrically squeezing a spherical cavity and further opening a rectangular slot in each squeezed area. The higher order modes of the resonator are first tuned spectrally farther away from the dominant mode by the squeezing, and then are suppressed by the slotting. X-band resonator prototypes are designed, and 3-D printed by using a metallic selective laser melting technique. Quality factors of the fabricated resonators are further improved by vibration grinding process. The experiment validates effective suppression of the first higher order mode and indicates potential applications of the proposed resonators in bandpass filters to extend the spurious-free stopband bandwidths.",
keywords = "Additive manufacturing, high quality factor, higher order mode suppression, selective laser melting, shaped spherical resonator, slotted cavity resonator",
author = "Cheng Guo and Jin Li and Yang Yu and Fan Zhang and Sheng Li and Attallah, {Moataz M.} and Xiaobang Shang and Anxue Zhang and Yi Wang and Lancaster, {Michael J.}",
year = "2019",
month = jun,
doi = "10.1109/mwsym.2019.8700752",
language = "English",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
pages = "1205--1208",
booktitle = "2019 IEEE MTT-S International Microwave Symposium, IMS 2019",
note = "2019 IEEE MTT-S International Microwave Symposium, IMS 2019 ; Conference date: 02-06-2019 Through 07-06-2019",

}

RIS

TY - GEN

T1 - Shaping and Slotting High-Q Spherical Resonators for Suppression of Higher Order Modes

AU - Guo, Cheng

AU - Li, Jin

AU - Yu, Yang

AU - Zhang, Fan

AU - Li, Sheng

AU - Attallah, Moataz M.

AU - Shang, Xiaobang

AU - Zhang, Anxue

AU - Wang, Yi

AU - Lancaster, Michael J.

PY - 2019/6

Y1 - 2019/6

N2 - This paper proposes two methods to improve the spurious-free stopband range for high-quality-factor spherical resonators and a new family of shaped spherical resonators are presented. Geometrical shaping of the proposed resonators is realized by symmetrically squeezing a spherical cavity and further opening a rectangular slot in each squeezed area. The higher order modes of the resonator are first tuned spectrally farther away from the dominant mode by the squeezing, and then are suppressed by the slotting. X-band resonator prototypes are designed, and 3-D printed by using a metallic selective laser melting technique. Quality factors of the fabricated resonators are further improved by vibration grinding process. The experiment validates effective suppression of the first higher order mode and indicates potential applications of the proposed resonators in bandpass filters to extend the spurious-free stopband bandwidths.

AB - This paper proposes two methods to improve the spurious-free stopband range for high-quality-factor spherical resonators and a new family of shaped spherical resonators are presented. Geometrical shaping of the proposed resonators is realized by symmetrically squeezing a spherical cavity and further opening a rectangular slot in each squeezed area. The higher order modes of the resonator are first tuned spectrally farther away from the dominant mode by the squeezing, and then are suppressed by the slotting. X-band resonator prototypes are designed, and 3-D printed by using a metallic selective laser melting technique. Quality factors of the fabricated resonators are further improved by vibration grinding process. The experiment validates effective suppression of the first higher order mode and indicates potential applications of the proposed resonators in bandpass filters to extend the spurious-free stopband bandwidths.

KW - Additive manufacturing

KW - high quality factor

KW - higher order mode suppression

KW - selective laser melting

KW - shaped spherical resonator

KW - slotted cavity resonator

UR - http://www.scopus.com/inward/record.url?scp=85069959937&partnerID=8YFLogxK

U2 - 10.1109/mwsym.2019.8700752

DO - 10.1109/mwsym.2019.8700752

M3 - Conference contribution

AN - SCOPUS:85069959937

T3 - IEEE MTT-S International Microwave Symposium Digest

SP - 1205

EP - 1208

BT - 2019 IEEE MTT-S International Microwave Symposium, IMS 2019

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 2019 IEEE MTT-S International Microwave Symposium, IMS 2019

Y2 - 2 June 2019 through 7 June 2019

ER -