Differential Wideband Bandpass Filter With High-Selectivity and Common-Mode Suppression

Wu, Xiaohu; Chu, Qing‐Xin; Qiu, Lei‐Lei

doi:10.1109/lmwc.2013.2284787

Cited by 48 publications

(19 citation statements)

References 8 publications

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“…The design of differential-mode (or balanced) wideband bandpass filters with common-mode noise suppression is a very active research topic today [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. These filters are fundamental elements in balanced circuits and systems (e.g., high-speed digital circuits), of increasing demand for their inherent high immunity to noise, electromagnetic interference (EMI) and crosstalk.…”

Section: This Paper Presents Small Balanced Bandpass Filters Exhibitimentioning

confidence: 99%

Automated design of balanced wideband bandpass filters based on mirrored stepped impedance resonators (SIRs) and interdigital capacitors

Sans

Selga

Vélez

et al. 2016

Int. J. Microw. Wireless Technol.

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Section: This Paper Presents Small Balanced Bandpass Filters Exhibitimentioning

confidence: 99%

Automated design of balanced wideband bandpass filters based on mirrored stepped impedance resonators (SIRs) and interdigital capacitors

Sans

Selga

Vélez

et al. 2016

Int. J. Microw. Wireless Technol.

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“…Compared with the traditional single‐ended BPFs, these DM BPFs hold a few advantageous performances, such as inherent high immunity to environmental noise, low electromagnetic emission or electromagnetic interference (EMI), and little crosstalk . So far, a great deal of effort has been devoted to this topic . Meanwhile, a few straightforward methods have been proposed to design DM filters, including coupled resonators with cascaded quadruplet, complementary split ring resonators, rectangular dielectric resonators in a metallic enclosure, and substrate‐integrate waveguide resonators .…”

Section: Introductionmentioning

confidence: 99%

Direct synthesis of compact wideband differential bandpass filter on composite triple-mode resonator

Feng

2018

Int J RF Microw Comput Aided Eng

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In this paper, a direct synthesis approach is proposed for design of a compact wideband differential‐mode (DM) bandpass filter (BPF) on a composite triple‐mode resonator. By virtue of intrinsic common‐mode (CM) suppression in slotline portion, only the DM transmission performances need to be focused on in our design, so as to facilitate the design process. Consequently, a synthesis approach based on an equivalent simplified network is established to design this DM BPF, resulting to directly determine all the circuit element values. A wideband DM BPF is then designed to validate effectiveness of proposed synthesis method. Finally, two circuit prototypes have been designed, fabricated, and measured. The synthesized, simulated and measured results agree well with each other over a wide operating band, which has demonstrated the proposed DM BPFs' attractive performances, such as wide bandwidth of operation, sharpened frequency selectivity, and good CM suppression.

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“…In practical circuits, common-mode noise still interferes with differential signal path, which will degrade the signal integrity of a high speed circuit system [1][2][3][4][5][6][7][8]. The balanced bandpass filters (BPFs) are effective in removing the common-mode noises but still keep good signal integrity performance for the differential signals in their passbands [9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Some balanced filters based on branch-line structures were presented in [9,14,15], which obtained good common-mode suppression in the passband and high selectivity for the differential mode but relatively high insertion loss. In addition, differential filters were constructed in [10,11] by taking advantage of the parallel-coupled lines which had some limitations for the special structures. Some balanced filters [12,13] aim at UWB applications, but their sizes are relatively large.…”

Section: Introductionmentioning

confidence: 99%

Compact Balanced Uwb BPF Based on Hmsiw and D-DGS

Li¹,

Ding²,

Wei³

et al. 2015

PIER Letters

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Abstract-A compact balanced UWB bandpass filter (BPF) is proposed in this paper, which is based on the half-mode substrate integrated waveguide (HMSIW) and the differential defected ground structure (D-DGS). Using the HMSIW, the filter can achieve compact size, wide passband and good compatibility. Two D-DGS cells are employed to provide good suppression for the common-mode (CM) noise, while they have small effect on the performance of differential-mode (DM) signals. To validate the design theory, a microstrip balanced UWB BPF is designed, fabricated and measured to meet compact size, low insertion loss, good return loss as well as proper bandwidth. The predicted results are compared with measured data and show reasonable agreement.

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Differential Wideband Bandpass Filter With High-Selectivity and Common-Mode Suppression

Cited by 48 publications

References 8 publications

Automated design of balanced wideband bandpass filters based on mirrored stepped impedance resonators (SIRs) and interdigital capacitors

Automated design of balanced wideband bandpass filters based on mirrored stepped impedance resonators (SIRs) and interdigital capacitors

Direct synthesis of compact wideband differential bandpass filter on composite triple-mode resonator

Compact Balanced Uwb BPF Based on Hmsiw and D-DGS

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