Miniaturized bandpass filter design using substrate integrated waveguide cavities with enhanced signal selectivity

Min Hua Ho; Keh Yi Lee; Yi Cheng Chen

doi:10.1002/mop.31730

Miniaturized bandpass filter design using substrate integrated waveguide cavities with enhanced signal selectivity

Min Hua Ho, Keh Yi Lee, Yi Cheng Chen

Graduate Institute of Communication Engineering

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

Abstract

We propose a miniaturized bandpass filter (BPF) design with enhanced signal selectivity performance. The proposed structure is composed of four square substrate integrated waveguide cavities (SIWCs). To miniaturize its circuit size, the applied cavities are under the evanescent mode resonance which is accomplished by loaded itself with a large capacitance. As a result, a 93.4% size reduction is achieved. The negative coupling structure is employed in the filter design to create two transmission zeroes by the pass band's two edges for enhancing the signal selectivity. Experiment is conducted to verify this compact SIWC BPF design.

Original language	English
Pages (from-to)	1185-1188
Number of pages	4
Journal	Microwave and Optical Technology Letters
Volume	61
Issue number	5
DOIs	https://doi.org/10.1002/mop.31730
Publication status	Published - 2019 May

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{245acbbf6ac74af9b63de6ae3a6c4cf0,

title = "Miniaturized bandpass filter design using substrate integrated waveguide cavities with enhanced signal selectivity",

abstract = "We propose a miniaturized bandpass filter (BPF) design with enhanced signal selectivity performance. The proposed structure is composed of four square substrate integrated waveguide cavities (SIWCs). To miniaturize its circuit size, the applied cavities are under the evanescent mode resonance which is accomplished by loaded itself with a large capacitance. As a result, a 93.4% size reduction is achieved. The negative coupling structure is employed in the filter design to create two transmission zeroes by the pass band's two edges for enhancing the signal selectivity. Experiment is conducted to verify this compact SIWC BPF design.",

author = "Ho, {Min Hua} and Lee, {Keh Yi} and Chen, {Yi Cheng}",

note = "Funding Information: The authors wish to acknowledge the support of Ministry of Science & Technology, R. O. C. under the Grant no. MOST 105-2221-E-018-003 and MOST 106-2221-E-018-005. Funding Information: information Ministry of Science and Technology, Grant/Award Numbers: MOST 105-2221-E-018-003, MOST 106-2221-E-018-005The authors wish to acknowledge the support of Ministry of Science & Technology, R. O. C. under the Grant no. MOST 105-2221-E-018-003 and MOST 106-2221-E-018-005.",

year = "2019",

month = may,

doi = "10.1002/mop.31730",

language = "English",

volume = "61",

pages = "1185--1188",

journal = "Microwave and Optical Technology Letters",

issn = "0895-2477",

publisher = "John Wiley and Sons Inc.",

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AU - Ho, Min Hua

AU - Lee, Keh Yi

AU - Chen, Yi Cheng

N1 - Funding Information: The authors wish to acknowledge the support of Ministry of Science & Technology, R. O. C. under the Grant no. MOST 105-2221-E-018-003 and MOST 106-2221-E-018-005. Funding Information: information Ministry of Science and Technology, Grant/Award Numbers: MOST 105-2221-E-018-003, MOST 106-2221-E-018-005The authors wish to acknowledge the support of Ministry of Science & Technology, R. O. C. under the Grant no. MOST 105-2221-E-018-003 and MOST 106-2221-E-018-005.

PY - 2019/5

Y1 - 2019/5

N2 - We propose a miniaturized bandpass filter (BPF) design with enhanced signal selectivity performance. The proposed structure is composed of four square substrate integrated waveguide cavities (SIWCs). To miniaturize its circuit size, the applied cavities are under the evanescent mode resonance which is accomplished by loaded itself with a large capacitance. As a result, a 93.4% size reduction is achieved. The negative coupling structure is employed in the filter design to create two transmission zeroes by the pass band's two edges for enhancing the signal selectivity. Experiment is conducted to verify this compact SIWC BPF design.

AB - We propose a miniaturized bandpass filter (BPF) design with enhanced signal selectivity performance. The proposed structure is composed of four square substrate integrated waveguide cavities (SIWCs). To miniaturize its circuit size, the applied cavities are under the evanescent mode resonance which is accomplished by loaded itself with a large capacitance. As a result, a 93.4% size reduction is achieved. The negative coupling structure is employed in the filter design to create two transmission zeroes by the pass band's two edges for enhancing the signal selectivity. Experiment is conducted to verify this compact SIWC BPF design.

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