Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/629009
Title: Tunable Balanced Bandpass Filter With Wide Tuning Range of Center Frequency and Bandwidth Using Compact Coupled-Line Resonator
Authors: He Zhu;Amin M. Abbosh
subject: bandpass filter (BPF)|Balanced filter|tunable filter|coupled-line resonator
Year: 2016
Publisher: IEEE
Abstract: A tunable balanced bandpass filter using a short coupled-line resonator is proposed. The design aims at achieving a wide tuning range in the differential-mode for both of the center frequency and bandwidth with high common-mode suppression. The proposed filter uses a short section (about one-eighth of one wavelength) of parallel-coupled lines connecting the differential ports of the device and five pairs of varactors. A theoretical analysis using the even-odd mode theory is presented to verify the tunability of the design and calculate the initial values of its design parameters. For validation, a prototype is designed, fabricated and tested. The measured results indicate that the differential-mode tuning range for the center frequency and 3 dB- bandwidth extend from 0.58 to 1.22 GHz, and from 65 to 180 MHz, respectively, with more than 30 dB of common-mode suppression in the operating differential-mode passband. Moreover, the proposed device has a compact size (with respect to the guided wavelength) of only 0.12&#x03BB;<sub>G</sub>&#x00D7;0.08&#x03BB;<sub>G</sub>.
URI: http://localhost/handle/Hannan/181034
http://localhost/handle/Hannan/629009
ISSN: 1531-1309
1558-1764
volume: 26
issue: 1
Appears in Collections:2016

Files in This Item:
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7358174.pdf1.24 MBAdobe PDFThumbnail
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Title: Tunable Balanced Bandpass Filter With Wide Tuning Range of Center Frequency and Bandwidth Using Compact Coupled-Line Resonator
Authors: He Zhu;Amin M. Abbosh
subject: bandpass filter (BPF)|Balanced filter|tunable filter|coupled-line resonator
Year: 2016
Publisher: IEEE
Abstract: A tunable balanced bandpass filter using a short coupled-line resonator is proposed. The design aims at achieving a wide tuning range in the differential-mode for both of the center frequency and bandwidth with high common-mode suppression. The proposed filter uses a short section (about one-eighth of one wavelength) of parallel-coupled lines connecting the differential ports of the device and five pairs of varactors. A theoretical analysis using the even-odd mode theory is presented to verify the tunability of the design and calculate the initial values of its design parameters. For validation, a prototype is designed, fabricated and tested. The measured results indicate that the differential-mode tuning range for the center frequency and 3 dB- bandwidth extend from 0.58 to 1.22 GHz, and from 65 to 180 MHz, respectively, with more than 30 dB of common-mode suppression in the operating differential-mode passband. Moreover, the proposed device has a compact size (with respect to the guided wavelength) of only 0.12&#x03BB;<sub>G</sub>&#x00D7;0.08&#x03BB;<sub>G</sub>.
URI: http://localhost/handle/Hannan/181034
http://localhost/handle/Hannan/629009
ISSN: 1531-1309
1558-1764
volume: 26
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7358174.pdf1.24 MBAdobe PDFThumbnail
Preview File
Title: Tunable Balanced Bandpass Filter With Wide Tuning Range of Center Frequency and Bandwidth Using Compact Coupled-Line Resonator
Authors: He Zhu;Amin M. Abbosh
subject: bandpass filter (BPF)|Balanced filter|tunable filter|coupled-line resonator
Year: 2016
Publisher: IEEE
Abstract: A tunable balanced bandpass filter using a short coupled-line resonator is proposed. The design aims at achieving a wide tuning range in the differential-mode for both of the center frequency and bandwidth with high common-mode suppression. The proposed filter uses a short section (about one-eighth of one wavelength) of parallel-coupled lines connecting the differential ports of the device and five pairs of varactors. A theoretical analysis using the even-odd mode theory is presented to verify the tunability of the design and calculate the initial values of its design parameters. For validation, a prototype is designed, fabricated and tested. The measured results indicate that the differential-mode tuning range for the center frequency and 3 dB- bandwidth extend from 0.58 to 1.22 GHz, and from 65 to 180 MHz, respectively, with more than 30 dB of common-mode suppression in the operating differential-mode passband. Moreover, the proposed device has a compact size (with respect to the guided wavelength) of only 0.12&#x03BB;<sub>G</sub>&#x00D7;0.08&#x03BB;<sub>G</sub>.
URI: http://localhost/handle/Hannan/181034
http://localhost/handle/Hannan/629009
ISSN: 1531-1309
1558-1764
volume: 26
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7358174.pdf1.24 MBAdobe PDFThumbnail
Preview File