Compact LTCC bandpass filter with wide stopband using discriminating coupling

Xiu Yin Zhang; Xin Dai; Hsuan Ling Kao; Bai Hong Wei; Ze Yu Cai; Quan Xue

doi:10.1109/TCPMT.2013.2297522

Compact LTCC bandpass filter with wide stopband using discriminating coupling

Xiu Yin Zhang, Xin Dai, Hsuan Ling Kao, Bai Hong Wei, Ze Yu Cai, Quan Xue

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

57 Scopus citations

Abstract

This paper presents a novel compact low-temperature cofired ceramic (LTCC) bandpass filter (BPF) with wide stopband and high selectivity. The proposed circuit consists of two coupled \lambda-{g}/4 transmission-line resonators. A special coupling region is selected to realize a novel discriminating coupling scheme for generating a transmission zero (TZ) at the third harmonic frequency. The mechanism is analyzed and the design guideline is described. The source-load coupling is introduced to generate two TZs near the passband and one in the stopband. Thus, wide stopband can be obtained without extra circuits. Due to the LTCC multilayer structures, the filter size is 0.058~\lambda-{g}\times 0.058~\lambda-{g}\times 0.011~\lambda_g, or 2.63 mm ×,2.61 mm ×,0.5 mm. The simulated and measured results of the demonstrated LTCC BPF are presented to validate the proposed design.

Original language	English
Article number	6717183
Pages (from-to)	656-663
Number of pages	8
Journal	IEEE Transactions on Components, Packaging and Manufacturing Technology
Volume	4
Issue number	4
DOIs	https://doi.org/10.1109/TCPMT.2013.2297522
State	Published - 04 2014
Externally published	Yes

Keywords

Bandpass filter (BPF)
discriminating coupling
low-temperature cofired ceramic (LTCC)
miniaturization
source-load (S-L) coupling
wide stopband

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10.1109/TCPMT.2013.2297522

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title = "Compact LTCC bandpass filter with wide stopband using discriminating coupling",

abstract = "This paper presents a novel compact low-temperature cofired ceramic (LTCC) bandpass filter (BPF) with wide stopband and high selectivity. The proposed circuit consists of two coupled \textbackslash{}lambda-\{g\}/4 transmission-line resonators. A special coupling region is selected to realize a novel discriminating coupling scheme for generating a transmission zero (TZ) at the third harmonic frequency. The mechanism is analyzed and the design guideline is described. The source-load coupling is introduced to generate two TZs near the passband and one in the stopband. Thus, wide stopband can be obtained without extra circuits. Due to the LTCC multilayer structures, the filter size is 0.058\textasciitilde{}\textbackslash{}lambda-\{g\}\textbackslash{}times 0.058\textasciitilde{}\textbackslash{}lambda-\{g\}\textbackslash{}times 0.011\textasciitilde{}\textbackslash{}lambdag, or 2.63 mm ×,2.61 mm ×,0.5 mm. The simulated and measured results of the demonstrated LTCC BPF are presented to validate the proposed design.",

keywords = "Bandpass filter (BPF), discriminating coupling, low-temperature cofired ceramic (LTCC), miniaturization, source-load (S-L) coupling, wide stopband",

author = "Zhang, \{Xiu Yin\} and Xin Dai and Kao, \{Hsuan Ling\} and Wei, \{Bai Hong\} and Cai, \{Ze Yu\} and Quan Xue",

year = "2014",

month = apr,

doi = "10.1109/TCPMT.2013.2297522",

language = "英语",

volume = "4",

pages = "656--663",

journal = "IEEE Transactions on Components, Packaging and Manufacturing Technology",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

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T1 - Compact LTCC bandpass filter with wide stopband using discriminating coupling

AU - Zhang, Xiu Yin

AU - Dai, Xin

AU - Kao, Hsuan Ling

AU - Wei, Bai Hong

AU - Cai, Ze Yu

AU - Xue, Quan

PY - 2014/4

Y1 - 2014/4

N2 - This paper presents a novel compact low-temperature cofired ceramic (LTCC) bandpass filter (BPF) with wide stopband and high selectivity. The proposed circuit consists of two coupled \lambda-{g}/4 transmission-line resonators. A special coupling region is selected to realize a novel discriminating coupling scheme for generating a transmission zero (TZ) at the third harmonic frequency. The mechanism is analyzed and the design guideline is described. The source-load coupling is introduced to generate two TZs near the passband and one in the stopband. Thus, wide stopband can be obtained without extra circuits. Due to the LTCC multilayer structures, the filter size is 0.058~\lambda-{g}\times 0.058~\lambda-{g}\times 0.011~\lambdag, or 2.63 mm ×,2.61 mm ×,0.5 mm. The simulated and measured results of the demonstrated LTCC BPF are presented to validate the proposed design.

AB - This paper presents a novel compact low-temperature cofired ceramic (LTCC) bandpass filter (BPF) with wide stopband and high selectivity. The proposed circuit consists of two coupled \lambda-{g}/4 transmission-line resonators. A special coupling region is selected to realize a novel discriminating coupling scheme for generating a transmission zero (TZ) at the third harmonic frequency. The mechanism is analyzed and the design guideline is described. The source-load coupling is introduced to generate two TZs near the passband and one in the stopband. Thus, wide stopband can be obtained without extra circuits. Due to the LTCC multilayer structures, the filter size is 0.058~\lambda-{g}\times 0.058~\lambda-{g}\times 0.011~\lambdag, or 2.63 mm ×,2.61 mm ×,0.5 mm. The simulated and measured results of the demonstrated LTCC BPF are presented to validate the proposed design.

KW - Bandpass filter (BPF)

KW - discriminating coupling

KW - low-temperature cofired ceramic (LTCC)

KW - miniaturization

KW - source-load (S-L) coupling

KW - wide stopband

UR - https://www.scopus.com/pages/publications/84897575185

U2 - 10.1109/TCPMT.2013.2297522

DO - 10.1109/TCPMT.2013.2297522

M3 - 文章

AN - SCOPUS:84897575185

SN - 2156-3950

VL - 4

SP - 656

EP - 663

JO - IEEE Transactions on Components, Packaging and Manufacturing Technology

JF - IEEE Transactions on Components, Packaging and Manufacturing Technology

IS - 4

M1 - 6717183

ER -

Compact LTCC bandpass filter with wide stopband using discriminating coupling

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Keywords

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