A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material

Yupeng Liu; Liaoyuan Zeng; Shutian Zhou; Lingqing Li; Sean McGrath

doi:10.1109/ISSC49989.2020.9180179

A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material

Yupeng Liu, Liaoyuan Zeng, Shutian Zhou, Lingqing Li, Sean McGrath

Department of Electronics & Computer Engineering

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

Abstract

In this paper, a novel wideband band-pass center frequency tunable filter is proposed based on liquid crystals for applications at millimeter-waves, which uses a micro-strip periodical structure with loading square spiral resonators. The tunable range of the proposed filter is about 1.59 GHz while the external bias voltage of the liquid crystal turns from 0V to 30V. The filter center frequency ranges from 39.08 GHz to 40.67 GHz. And the insertion loss of filter is about 3.9dB. The proposed filter has many advantages, such as continuously electrically tunability, miniaturization, low tuning voltage, etc. Therefore, a great potential of such a filter has been shown for use in the next communication system.

Original language	English
Title of host publication	2020 31st Irish Signals and Systems Conference, ISSC 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728194189
DOIs	https://doi.org/10.1109/ISSC49989.2020.9180179
Publication status	Published - Jun 2020
Event	31st Irish Signals and Systems Conference, ISSC 2020 - Letterkenny, Ireland Duration: 11 Jun 2020 → 12 Jun 2020

Publication series

Name	2020 31st Irish Signals and Systems Conference, ISSC 2020

Conference

Conference	31st Irish Signals and Systems Conference, ISSC 2020
Country/Territory	Ireland
City	Letterkenny
Period	11/06/20 → 12/06/20

Keywords

liquid crystal
millimeter-wave
square spiral structure
tunable filter

Access to Document

10.1109/ISSC49989.2020.9180179

Cite this

Liu, Y., Zeng, L., Zhou, S., Li, L., & McGrath, S. (2020). A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material. In 2020 31st Irish Signals and Systems Conference, ISSC 2020 Article 9180179 (2020 31st Irish Signals and Systems Conference, ISSC 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSC49989.2020.9180179

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title = "A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material",

abstract = "In this paper, a novel wideband band-pass center frequency tunable filter is proposed based on liquid crystals for applications at millimeter-waves, which uses a micro-strip periodical structure with loading square spiral resonators. The tunable range of the proposed filter is about 1.59 GHz while the external bias voltage of the liquid crystal turns from 0V to 30V. The filter center frequency ranges from 39.08 GHz to 40.67 GHz. And the insertion loss of filter is about 3.9dB. The proposed filter has many advantages, such as continuously electrically tunability, miniaturization, low tuning voltage, etc. Therefore, a great potential of such a filter has been shown for use in the next communication system.",

keywords = "liquid crystal, millimeter-wave, square spiral structure, tunable filter",

author = "Yupeng Liu and Liaoyuan Zeng and Shutian Zhou and Lingqing Li and Sean McGrath",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 31st Irish Signals and Systems Conference, ISSC 2020 ; Conference date: 11-06-2020 Through 12-06-2020",

year = "2020",

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doi = "10.1109/ISSC49989.2020.9180179",

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Liu, Y, Zeng, L, Zhou, S, Li, L & McGrath, S 2020, A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material. in 2020 31st Irish Signals and Systems Conference, ISSC 2020., 9180179, 2020 31st Irish Signals and Systems Conference, ISSC 2020, Institute of Electrical and Electronics Engineers Inc., 31st Irish Signals and Systems Conference, ISSC 2020, Letterkenny, Ireland, 11/06/20. https://doi.org/10.1109/ISSC49989.2020.9180179

A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material. / Liu, Yupeng; Zeng, Liaoyuan; Zhou, Shutian et al.
2020 31st Irish Signals and Systems Conference, ISSC 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9180179 (2020 31st Irish Signals and Systems Conference, ISSC 2020).

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

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T1 - A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material

AU - Liu, Yupeng

AU - Zeng, Liaoyuan

AU - Zhou, Shutian

AU - Li, Lingqing

AU - McGrath, Sean

PY - 2020/6

Y1 - 2020/6

N2 - In this paper, a novel wideband band-pass center frequency tunable filter is proposed based on liquid crystals for applications at millimeter-waves, which uses a micro-strip periodical structure with loading square spiral resonators. The tunable range of the proposed filter is about 1.59 GHz while the external bias voltage of the liquid crystal turns from 0V to 30V. The filter center frequency ranges from 39.08 GHz to 40.67 GHz. And the insertion loss of filter is about 3.9dB. The proposed filter has many advantages, such as continuously electrically tunability, miniaturization, low tuning voltage, etc. Therefore, a great potential of such a filter has been shown for use in the next communication system.

AB - In this paper, a novel wideband band-pass center frequency tunable filter is proposed based on liquid crystals for applications at millimeter-waves, which uses a micro-strip periodical structure with loading square spiral resonators. The tunable range of the proposed filter is about 1.59 GHz while the external bias voltage of the liquid crystal turns from 0V to 30V. The filter center frequency ranges from 39.08 GHz to 40.67 GHz. And the insertion loss of filter is about 3.9dB. The proposed filter has many advantages, such as continuously electrically tunability, miniaturization, low tuning voltage, etc. Therefore, a great potential of such a filter has been shown for use in the next communication system.

KW - liquid crystal

KW - millimeter-wave

KW - square spiral structure

KW - tunable filter

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Liu Y, Zeng L, Zhou S, Li L, McGrath S. A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material. In 2020 31st Irish Signals and Systems Conference, ISSC 2020. Institute of Electrical and Electronics Engineers Inc. 2020. 9180179. (2020 31st Irish Signals and Systems Conference, ISSC 2020). doi: 10.1109/ISSC49989.2020.9180179

A Wideband Millimeter-wave Tunable Filter based on Periodic Square Spiral Structure and Liquid Crystal Material

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