Analysis of a Novel Singlet and Its Application in THz Bandpass Filter Design

Yu Xiao; Peizhe Shan; Kaiqiang Zhu; Houjun Sun; Fan Yang

doi:10.1109/TTHZ.2018.2823541

Analysis of a Novel Singlet and Its Application in THz Bandpass Filter Design

Yu Xiao^*, Peizhe Shan, Kaiqiang Zhu, Houjun Sun, Fan Yang

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

In this paper, a novel singlet based on TE₃₀₁ mode resonant cavity is first introduced and analyzed. By using the mode cancelling between the dominant resonance and the spurious resonance, a transmission zero (TZ) is then produced. Furthermore, the position of TZ can be controlled properly by changing the dimensions of the resonant cavity. Based on the novel singlet, a fifth-order filter centered at 140 GHz with two TZs at 131 and 151 GHz has been presented and fabricated by conventional computer numerical control-metal-milling technology. The measured results are in excellent agreement with the simulated ones with a low insertion loss of 0.52 dB and a 3-dB bandwidth of 13 GHz. A high selectivity with a 40 dB outband rejection at 132 and 149 GHz is achieved.

Original language	English
Pages (from-to)	312-320
Number of pages	9
Journal	IEEE Transactions on Terahertz Science and Technology
Volume	8
Issue number	3
DOIs	https://doi.org/10.1109/TTHZ.2018.2823541
Publication status	Published - May 2018

Keywords

140 GHz
bandpass filter (BPF)
mode cancelling
singlets
transmission zeros (TZs)
waveguide filter

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10.1109/TTHZ.2018.2823541

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title = "Analysis of a Novel Singlet and Its Application in THz Bandpass Filter Design",

abstract = "In this paper, a novel singlet based on TE301 mode resonant cavity is first introduced and analyzed. By using the mode cancelling between the dominant resonance and the spurious resonance, a transmission zero (TZ) is then produced. Furthermore, the position of TZ can be controlled properly by changing the dimensions of the resonant cavity. Based on the novel singlet, a fifth-order filter centered at 140 GHz with two TZs at 131 and 151 GHz has been presented and fabricated by conventional computer numerical control-metal-milling technology. The measured results are in excellent agreement with the simulated ones with a low insertion loss of 0.52 dB and a 3-dB bandwidth of 13 GHz. A high selectivity with a 40 dB outband rejection at 132 and 149 GHz is achieved.",

keywords = "140 GHz, bandpass filter (BPF), mode cancelling, singlets, transmission zeros (TZs), waveguide filter",

author = "Yu Xiao and Peizhe Shan and Kaiqiang Zhu and Houjun Sun and Fan Yang",

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T1 - Analysis of a Novel Singlet and Its Application in THz Bandpass Filter Design

AU - Xiao, Yu

AU - Shan, Peizhe

AU - Zhu, Kaiqiang

AU - Sun, Houjun

AU - Yang, Fan

PY - 2018/5

Y1 - 2018/5

N2 - In this paper, a novel singlet based on TE301 mode resonant cavity is first introduced and analyzed. By using the mode cancelling between the dominant resonance and the spurious resonance, a transmission zero (TZ) is then produced. Furthermore, the position of TZ can be controlled properly by changing the dimensions of the resonant cavity. Based on the novel singlet, a fifth-order filter centered at 140 GHz with two TZs at 131 and 151 GHz has been presented and fabricated by conventional computer numerical control-metal-milling technology. The measured results are in excellent agreement with the simulated ones with a low insertion loss of 0.52 dB and a 3-dB bandwidth of 13 GHz. A high selectivity with a 40 dB outband rejection at 132 and 149 GHz is achieved.

AB - In this paper, a novel singlet based on TE301 mode resonant cavity is first introduced and analyzed. By using the mode cancelling between the dominant resonance and the spurious resonance, a transmission zero (TZ) is then produced. Furthermore, the position of TZ can be controlled properly by changing the dimensions of the resonant cavity. Based on the novel singlet, a fifth-order filter centered at 140 GHz with two TZs at 131 and 151 GHz has been presented and fabricated by conventional computer numerical control-metal-milling technology. The measured results are in excellent agreement with the simulated ones with a low insertion loss of 0.52 dB and a 3-dB bandwidth of 13 GHz. A high selectivity with a 40 dB outband rejection at 132 and 149 GHz is achieved.

KW - 140 GHz

KW - bandpass filter (BPF)

KW - mode cancelling

KW - singlets

KW - transmission zeros (TZs)

KW - waveguide filter

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Analysis of a Novel Singlet and Its Application in THz Bandpass Filter Design

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Keywords

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