2021
DOI: 10.1002/mop.32940
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Compact dual‐band bandpass filter with high‐passband isolation using coupled lines and open stub

Abstract: This article presents the design and analysis of a compact dual‐band bandpass filter employing coupled lines and open circuit stub. The filter frequency response contains two passbands with good isolation between them and five transmission zeros in the stopband. The analytical design equations for transmission zero frequencies are obtained based on lossless transmission line theory and the even and odd mode analysis method. A dual‐band bandpass filter operating at GSM (0.9 GHz) and Wi‐Fi (2.4 GHz) frequencies … Show more

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Cited by 8 publications
(6 citation statements)
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“…With the rise of new wireless technologies [1][2][3][4][5], compact and low cost high-performance microwave filters are highly recommended. However, dual-band bandpass filters with some or all these characteristics are developed using several design techniques and technologies [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Based on microstrip technology [6][7][8][9][10][11], dual narrow-passband filters are investigated using parallel stepped impedance open stubs in [6] and grounded stepped impedance resonator in [7].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…With the rise of new wireless technologies [1][2][3][4][5], compact and low cost high-performance microwave filters are highly recommended. However, dual-band bandpass filters with some or all these characteristics are developed using several design techniques and technologies [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Based on microstrip technology [6][7][8][9][10][11], dual narrow-passband filters are investigated using parallel stepped impedance open stubs in [6] and grounded stepped impedance resonator in [7].…”
Section: Introductionmentioning
confidence: 99%
“…However, dual-band bandpass filters with some or all these characteristics are developed using several design techniques and technologies [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Based on microstrip technology [6][7][8][9][10][11], dual narrow-passband filters are investigated using parallel stepped impedance open stubs in [6] and grounded stepped impedance resonator in [7]. Also, a traditional open/short microstrip-stubs are configured to realize dual passband filter with wide bandwidth performance [8].…”
Section: Introductionmentioning
confidence: 99%
“…With the rise of new wireless technologies [1][2][3][4][5], compact and low cost high-performance microwave filters are highly recommended. However, dual-band bandpass filters with some or all these characteristics are developed using several design techniques and technologies [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Based on microstrip technology [6][7][8][9][10][11], dual narrow-passband filters are investigated using parallel stepped impedance open stubs in [6] and grounded stepped impedance resonator in [7].…”
Section: Introductionmentioning
confidence: 99%
“…However, dual-band bandpass filters with some or all these characteristics are developed using several design techniques and technologies [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Based on microstrip technology [6][7][8][9][10][11], dual narrow-passband filters are investigated using parallel stepped impedance open stubs in [6] and grounded stepped impedance resonator in [7]. Also, a traditional open/short microstrip-stubs are configured to realize dual passband filter with wide bandwidth performance [8].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation