Dual-Band SIW Differential Bandpass Filter With Improved Common-Mode Suppression

Shen, Yongxi; Wang, Hui; Kang, Wei; Wu, Wen

doi:10.1109/lmwc.2014.2382683

Cited by 79 publications

(53 citation statements)

References 6 publications

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“…Table exhibits the performance comparison of the proposed differential dual‐band filter with other previously reported designs. As can be seen, the proposed filter showcases lower IL in the case of narrower bandwidth, as compared with the designs in References 8 and 13 The proposed design employs only one quad‐mode DR, where the size and cost can be reduced dramatically compared with cascaded types in Reference …”

Section: Simulated and Measured Resultsmentioning

confidence: 81%

“…Differential topology is widely applied in constructing microwave circuits and systems because of its high immunity to noise and crosstalk. Corresponding to this trend, many devices have been designed in differential configuration, such as power dividers, phase shifters, antennas, and filters . In earlier works, the differential bandpass filters (BPFs) have been extensively developed by using various technologies, such as the printed circuit board, the low temperature co‐fired ceramic, and the substrate integrated waveguide .…”

Section: Introductionmentioning

confidence: 99%

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Compact differential dual‐band bandpass filter using single quad‐mode metal‐loaded dielectric resonator

Yuan

Zhou

2019

Int J RF Microw Comput Aided Eng

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This letter presents a novel miniaturized differential dual‐band bandpass filter (BPF) using a single quad‐mode metal‐loaded dielectric resonator (DR). The differential dual‐band BPF is designed in a single‐cavity configuration with one quad‐mode DR and four feeding probes, featuring compact size. The rectangular DR is directly mounted on the bottom of the metal cavity and covered by a metal plate on the top surface. It allows two pairs of orthogonal modes (LSE10 and LSM10), which can be differentially excited and coupled by introducing proper perturbation for constructing dual‐band differential‐mode frequency response. To validate the proposed idea, a compact differential BPF with good performance using a quad‐mode DR cavity is designed, fabricated, and measured. The simulated and measured results with good agreement are presented.

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Section: Simulated and Measured Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Compact differential dual‐band bandpass filter using single quad‐mode metal‐loaded dielectric resonator

Yuan

Zhou

2019

Int J RF Microw Comput Aided Eng

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“…In recent years, various structures have been developed for the design of dual‐band SIW filters . Intuitively, multiple SIW cavities with two different resonant frequencies are combined together to obtain dual‐band operation, at the cost of large size . To decrease the number of SIW cavities used for constructing dual‐band filter, planar embedded resonators such as stepped‐impedance resonator etched on top metal layer of SIW is substitute for SIW cavity to produce one of the two passbands .…”

Section: Introductionmentioning

confidence: 99%

Dual‐band filter based on air‐filled SIW cavity for 5G application

Liu

Liang

et al. 2019

Micro & Optical Tech Letters

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This work presents a novel dual‐band filter based on air‐filled substrate‐integrated waveguide (SIW) cavity. Research is done on the multimode property of air‐filled SIW cavity, as a result, even mode and odd mode of TE102 are determined to produce the first passband, those of TE104 to form the second passband, meanwhile, those of TE202 as spurious modes exist in the air‐filled SIW cavity. As the resonant frequency of TE202 is close to that of TE104, a group of metal via holes is placed at where the electric field of TE202 is maximum so that TE202 does no harm to the second passband as the resonant frequency of TE202 is shifted to much higher frequency in this case. Moreover, the ratio of center frequency of the second passband to that of the first passband can be flexible adjusted for the presence of that group of metal via holes as perturbation structure. Thanks to exploiting even mode and odd mode of TE102 as well as TE104 for the design of dual‐band filter, a frequency response with two transmission poles in each passband and one transmission zero in the upper stopband of each passband are obtained, another transmission zero appears in the response as well for the presence of direct source‐load coupling. A dual‐band filter centered at 3.5 and 4.9 GHz is designed and fabricated to validate this design method, and good agreements between measured and simulated results can be observed.

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“…Numerous techniques have been investigated and developed to implement advanced SIW dual-band BPFs, including the parallel connecting method, 1 the dual-mode resonator method, [2][3][4][5][6][7][8][9][10][11] and the renowned coupling matrix synthesis design methods. [12][13][14] These methods, however, are usually difficult to be transplanted to implement SIW multiband filters according to the authors' knowledge.…”

Section: Introductionmentioning

confidence: 99%

SIW sext‐band bandpass filter based on split‐type triple‐band symmetrical frequency responses

Zhou

2018

Int J RF Microw Comput Aided Eng

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Substrate‐integrated waveguide (SIW) sext‐band bandpass filter (BPF) composed of two dual‐mode cavities coupled with multiple single‐mode ones is synthesized and designed for the first time by combining split‐type triple‐band symmetrical frequency responses for two virtual wide passbands dominated by TE101 and TE201 modes in SIW rectangular cavities. By applying our previously proposed dual‐mode frequency and coupling controlling techniques, the center frequencies and fractional bandwidths of the two virtual passbands can be allocated flexibly. An experimental prototype with the two virtual wide bands centered at 11.993 and 14.336 GHz is synthesized, designed, fabricated, and tested to demonstrate and validate the collaborative design concept, showing excellent agreement between the measured and simulation results.

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Dual-Band SIW Differential Bandpass Filter With Improved Common-Mode Suppression

Cited by 79 publications

References 6 publications

Compact differential dual‐band bandpass filter using single quad‐mode metal‐loaded dielectric resonator

Compact differential dual‐band bandpass filter using single quad‐mode metal‐loaded dielectric resonator

Dual‐band filter based on air‐filled SIW cavity for 5G application

SIW sext‐band bandpass filter based on split‐type triple‐band symmetrical frequency responses

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