scholarly journals Ultra-Compact (80 ${\hbox{mm}}^{2}$) Differential-Mode Ultra-Wideband (UWB) Bandpass Filters With Common-Mode Noise Suppression

2015 ◽  
Vol 63 (4) ◽  
pp. 1272-1280 ◽  
Author(s):  
Paris Velez ◽  
Jordi Naqui ◽  
Armando Fernandez-Prieto ◽  
Jordi Bonache ◽  
Javier Mata-Contreras ◽  
...  
Keyword(s):  
Noise Suppression ◽  
Bandpass Filters ◽  
Ultra Wideband ◽  
Differential Mode ◽  
Common Mode

Differential BPFs with Multiple Transmission Zeros Based on Terminated Coupled Lines

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 231-235
Author(s):  
Yiming Niu ◽  
Guo Yang ◽  
Wen Wu
Keyword(s):  
Noise Suppression ◽  
Bandpass Filters ◽  
Differential Mode ◽  
Common Mode ◽  
Multiple Zeros ◽  
Transmission Zeros ◽  
Coupled Lines ◽  
Multiple Transmission ◽  
Good Agreement

AbstractDifferential bandpass filters (BPFs) named Filter A and Filter B based on Terminated Coupled Lines (TCLs) are proposed in this letter. The TCLs contributes to not only three poles in differential-mode (DM) for wideband filtering response but also multiple zeros in both DM and common-mode (CM) offering wide DM out-of-band rejection and good CM suppression. Fabricated filters centred at 3.5 GHz with wide DM passband and wideband CM suppression have been designed and measured. The filters improved the noise suppression capability of the communication and radiometer systems. The simulated and measured results are in good agreement.

Ultra-Wideband, Differential-Mode Bandpass Filters with Four Coupled Lines Embedded in Self-Complementary Antennas

2007 ◽  
Vol E90-C (7) ◽  
pp. 1524-1532 ◽  
Author(s):  
A. SAITOU ◽  
K.-P. AHN ◽  
H. AOKI ◽  
K. HONJO ◽  
K. WATANABE
Keyword(s):  
Bandpass Filters ◽  
Ultra Wideband ◽  
Differential Mode ◽  
Coupled Lines

scholarly journals Compact Wideband Balanced Bandpass Filters With Very Broad Common-Mode and Differential-Mode Stopbands

2018 ◽  
Vol 66 (2) ◽  
pp. 737-750 ◽  
Author(s):  
Marc Sans ◽  
Jordi Selga ◽  
Paris Velez ◽  
Jordi Bonache ◽  
Ana Rodriguez ◽  
...  
Keyword(s):  
Bandpass Filters ◽  
Differential Mode ◽  
Common Mode

Compact Balanced Single-Band and Dual-Band BPFs with Controllable Bandwidth Using FoldedS-Shaped Slotline Resonators (FSSRs)

Frequenz ◽  
2019 ◽  
Vol 73 (1-2) ◽  
pp. 13-18 ◽  
Author(s):  
Xin Tong Zou ◽  
Zhi Jie Yang ◽  
Feng Wei ◽  
Bin Li ◽  
Xiao Wei Shi
Keyword(s):  
Bandpass Filters ◽  
Single Band ◽  
Dual Band ◽  
Differential Mode ◽  
Common Mode ◽  
Half Wavelength ◽  
Transition Structures ◽  
Internal Coupling ◽  
Good Agreement

Abstract In this paper, two compact balanced bandpass filters (BPFs) using half-wavelength folded S-shaped slotline resonators (FSSRs) are designed. The proposed FSSR is realized by extending and folding a traditional S-shaped slotline resonator, which can affect the internal coupling of resonator and reduce the size of the resonator. The balanced stepped-impedance microstrip-slotline transition structures are employed to generate a wideband common-mode (CM) suppression. The proposed filters can realize a single-band differential-mode (DM) bandpass response or a dual-band one by employing one or three FSSRs, respectively. Moreover, the center frequencies of the DM passbands are independent from the CM responses, which can simplify the designs procedure significantly. In order to validate their practicability, a compact balanced dual-band BPF with controllable center frequencies and bandwidths is fabricated and good agreement between the simulated and measured results is observed.

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