High Selectivity Slot-Coupled Bandpass Filter Using Discriminating Coupling and Source-Load Coupling

Cui, Jie; Chang, Haojie; Zhang, Renli

doi:10.3390/app10196807

Cited by 2 publications

(3 citation statements)

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“…According to [55], the lower and upper sideband selectivities of the proposed BPF can be calculated using 3‐ and 20‐dB amplitude responses with respect to its frequency point:

{selectivity}_{lower sideband} = (||, \frac{3 - 20}{f_{3} - f_{20}}) = 171.9 \frac{true}{dB} .

{selectivity}_{upper sideband} = (||, \frac{3 - 20}{f_{3} - f_{20}}) = 100 \frac{true}{dB} .

…”

Section: Resultsmentioning

confidence: 99%

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Design and fabrication of a novel multilayer bandpass filter with high‐order harmonics suppression using parallel coupled microstrip filter

2022

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This study presents a novel multilayer structure of parallel coupled‐line bandpass filtercentered at 2.42 GHz with a fractional bandwidth value of approximately 19.4%. The designed filter can suppress harmonics with an appropriate frequency response by incorporating different techniques based on the multilayer technique. A combination of different techniques such as radial microstrip stubs and defected ground structure (DGS) and defected microstrip structure techniques are employed to suppress harmonics up to 5f0. These techniques are used in two layers to suppress up to 5f0. In addition, in this study, the effects of different parameters, such as the width of slot‐line DGS, the angle of diagonal line slots in the upper layer, and the air gap between the two layers on the filter performance, are investigated. To verify the correct circuit operation, the designed filter is implemented and tested. The measurement results of the proposed filter are compared with the simulation results.

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“…According to [55], the lower and upper sideband selectivities of the proposed BPF can be calculated using 3‐ and 20‐dB amplitude responses with respect to its frequency point:

{selectivity}_{lower sideband} = (||, \frac{3 - 20}{f_{3} - f_{20}}) = 171.9 \frac{true}{dB} .

{selectivity}_{upper sideband} = (||, \frac{3 - 20}{f_{3} - f_{20}}) = 100 \frac{true}{dB} .

…”

Section: Resultsmentioning

confidence: 99%

“…According to [55], the lower and upper sideband selectivities of the proposed BPF can be calculated using 3-and 20-dB amplitude responses with respect to its frequency point:…”

Section: Resultsmentioning

confidence: 99%

Design and fabrication of a novel multilayer bandpass filter with high‐order harmonics suppression using parallel coupled microstrip filter

2022

View full text Add to dashboard Cite

show abstract

“…Additionally, it covers the frequency bands from 1.82 to 2.5 GHz for LTE communications applied to vehicular networks. Cui et al [10] proposed a multilayer bandpass filter with high selectivity. To this aim, the discriminating coupling formed by slot-coupled quarter-wavelength and half-wavelength resonators introduced a zero at 3f 0 (f 0 is the center frequency), while the second harmonic was also suppressed due to the quarter-wavelength resonators.…”

Section: Contributionsmentioning

confidence: 99%