A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation

Xiaohu Wu; Mahmoud Nafe; Alejandro Alvarez Melcon; J. Sebastian Gomez-Diaz; Xiaoguang Liu

doi:10.1109/mwsym.2019.8700732

A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation

Xiaohu Wu, Mahmoud Nafe, Alejandro Alvarez Melcon, J. Sebastian Gomez-Diaz, Xiaoguang Liu

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

A magnetless non-reciprocal filter based on spatio-temporal modulation is demonstrated in this paper. By modulating the resonant frequencies of the resonators with a progressive phase shift, a large difference between the forward and backward transmissions can be achieved, realizing a filter with non-reciprocal amplitude responses. As a proof-of-concept, a 2-pole microstrip filter centered at 1.0 GHz is designed and characterized. The non-reciprocal transmission is 11 dB in simulation and 6 dB in measurement, which experimentally validates the proposed concept.

Original language	English (US)
Title of host publication	2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	9-12
Number of pages	4
ISBN (Electronic)	9781728113098
DOIs	https://doi.org/10.1109/mwsym.2019.8700732
State	Published - Jun 2019
Event	2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States Duration: Jun 2 2019 → Jun 7 2019

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
Volume	2019-June
ISSN (Print)	0149-645X

Conference

Conference	2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Country	United States
City	Boston
Period	6/2/19 → 6/7/19

Keywords

filter
isolator
magnetless
non-reciprocal
spatio-temporal modulation (STM)

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/mwsym.2019.8700732

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Cite this

Wu, X., Nafe, M., Melcon, A. A., Sebastian Gomez-Diaz, J., & Liu, X. (2019). A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation. In 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 (pp. 9-12). [8700732] (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/mwsym.2019.8700732

A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation. / Wu, Xiaohu; Nafe, Mahmoud; Melcon, Alejandro Alvarez; Sebastian Gomez-Diaz, J.; Liu, Xiaoguang.

2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 9-12 8700732 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wu, X, Nafe, M, Melcon, AA, Sebastian Gomez-Diaz, J & Liu, X 2019, A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation. in 2019 IEEE MTT-S International Microwave Symposium, IMS 2019., 8700732, IEEE MTT-S International Microwave Symposium Digest, vol. 2019-June, Institute of Electrical and Electronics Engineers Inc., pp. 9-12, 2019 IEEE MTT-S International Microwave Symposium, IMS 2019, Boston, United States, 6/2/19. https://doi.org/10.1109/mwsym.2019.8700732

Wu X, Nafe M, Melcon AA, Sebastian Gomez-Diaz J, Liu X. A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation. In 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 9-12. 8700732. (IEEE MTT-S International Microwave Symposium Digest). https://doi.org/10.1109/mwsym.2019.8700732

Wu, Xiaohu ; Nafe, Mahmoud ; Melcon, Alejandro Alvarez ; Sebastian Gomez-Diaz, J. ; Liu, Xiaoguang. / A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation. 2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 9-12 (IEEE MTT-S International Microwave Symposium Digest).

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title = "A Non-Reciprocal Microstrip Bandpass Filter Based on Spatio-Temporal Modulation",

abstract = "A magnetless non-reciprocal filter based on spatio-temporal modulation is demonstrated in this paper. By modulating the resonant frequencies of the resonators with a progressive phase shift, a large difference between the forward and backward transmissions can be achieved, realizing a filter with non-reciprocal amplitude responses. As a proof-of-concept, a 2-pole microstrip filter centered at 1.0 GHz is designed and characterized. The non-reciprocal transmission is 11 dB in simulation and 6 dB in measurement, which experimentally validates the proposed concept.",

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