Miniaturised bandpass filter using novel feeding structure for harmonic suppression

L. Gao; X. Y. Zhang; Q. Xue

doi:10.1049/el.2012.1389

Miniaturised bandpass filter using novel feeding structure for harmonic suppression

L. Gao, X. Y. Zhang, Q. Xue

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

6 Citations (Scopus)

Abstract

Presented is a very compact structure for designing harmonic-suppressed bandpass filters with high selectivity. The proposed filter utilises folded quarter-wavelength resonators to miniaturise the circuit size. A novel feeding structure is used to not only generate transmission zeros near the passband but also suppress the third harmonic. To verify the proposed idea, an experimental filter has been implemented. High skirt selectivity and wide stopband are observed in the measured results. The circuit area of the filter is only 7.9×5.4mm (0.1λ _g×0.079λ _g), where λ _g is the guided wavelength at the operating frequency of 2.4GHz. © 2012 The Institution of Engineering and Technology.

Original language	English
Pages (from-to)	1414-1415
Journal	Electronics Letters
Volume	48
Issue number	22
DOIs	https://doi.org/10.1049/el.2012.1389
Publication status	Published - 25 Oct 2012

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title = "Miniaturised bandpass filter using novel feeding structure for harmonic suppression",

abstract = "Presented is a very compact structure for designing harmonic-suppressed bandpass filters with high selectivity. The proposed filter utilises folded quarter-wavelength resonators to miniaturise the circuit size. A novel feeding structure is used to not only generate transmission zeros near the passband but also suppress the third harmonic. To verify the proposed idea, an experimental filter has been implemented. High skirt selectivity and wide stopband are observed in the measured results. The circuit area of the filter is only 7.9×5.4mm (0.1λ g×0.079λ g), where λ g is the guided wavelength at the operating frequency of 2.4GHz. {\textcopyright} 2012 The Institution of Engineering and Technology.",

author = "L. Gao and Zhang, {X. Y.} and Q. Xue",

year = "2012",

month = oct,

day = "25",

doi = "10.1049/el.2012.1389",

language = "English",

volume = "48",

pages = "1414--1415",

journal = "Electronics Letters",

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publisher = "John Wiley & Sons",

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TY - JOUR

T1 - Miniaturised bandpass filter using novel feeding structure for harmonic suppression

AU - Gao, L.

AU - Zhang, X. Y.

AU - Xue, Q.

PY - 2012/10/25

Y1 - 2012/10/25

N2 - Presented is a very compact structure for designing harmonic-suppressed bandpass filters with high selectivity. The proposed filter utilises folded quarter-wavelength resonators to miniaturise the circuit size. A novel feeding structure is used to not only generate transmission zeros near the passband but also suppress the third harmonic. To verify the proposed idea, an experimental filter has been implemented. High skirt selectivity and wide stopband are observed in the measured results. The circuit area of the filter is only 7.9×5.4mm (0.1λ g×0.079λ g), where λ g is the guided wavelength at the operating frequency of 2.4GHz. © 2012 The Institution of Engineering and Technology.

AB - Presented is a very compact structure for designing harmonic-suppressed bandpass filters with high selectivity. The proposed filter utilises folded quarter-wavelength resonators to miniaturise the circuit size. A novel feeding structure is used to not only generate transmission zeros near the passband but also suppress the third harmonic. To verify the proposed idea, an experimental filter has been implemented. High skirt selectivity and wide stopband are observed in the measured results. The circuit area of the filter is only 7.9×5.4mm (0.1λ g×0.079λ g), where λ g is the guided wavelength at the operating frequency of 2.4GHz. © 2012 The Institution of Engineering and Technology.

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U2 - 10.1049/el.2012.1389

DO - 10.1049/el.2012.1389

M3 - RGC 21 - Publication in refereed journal

SN - 0013-5194

VL - 48

SP - 1414

EP - 1415

JO - Electronics Letters

JF - Electronics Letters

IS - 22

ER -

Miniaturised bandpass filter using novel feeding structure for harmonic suppression

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