Wideband Substrate Integrated Waveguide Chip Filter Using Spoof Surface Plasmon Polariton

Pan, Dongzhe; You, Bo; Wen, Xuan; Li, Xungen

doi:10.3390/mi13081195

Cited by 13 publications

(11 citation statements)

References 35 publications

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“…Similarly, substrate-integrated waveguide (SIW) offers features like high power capacity, low cost, and easy integration with planar structures [6,7,8]. Combining the highpass properties of SIW and half-mode SIW (HMSIW) with the lowpass properties of SSPP, broadband bandpass filters (BPFs) with controllable bandwidths have been previously reported using SIW-and HMSIW-SSPP structures [9,10,11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Broadband balanced filter with high common-mode suppression and wide stopband based on SIW and SSPP

Liu,

Xue,

2024

IEICE Electron. Express

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This paper introduces a novel balanced bandpass filter that utilizes the symmetrical F-shaped groove (SFG) substrate-integrated waveguide and spoof surface plasmon polariton (SIW-SSPP) structure. This design combines lowpass SSPP unit cells within a highpass balanced dual-layer SIW structure to realize bandpass filtering response. The SFG SIW-SSPP unit cell's superior dispersion properties contribute to broad bandwidth and extensive stopband. Additionally, the balanced dual-layer SIW structure, achieved by removing a rectangular aperture from the common ground, allows for high in-band common-mode (CM) suppression and a broad CM suppression range. The proposed filter offers multiple variables to regulate the passband's lower and upper cut-off frequencies independently. A fabricated prototype of the balanced filter is tested, demonstrating superior performance compared to previously reported balanced SIW and halfmode SIW BPFs. The filter achieves a broad 3-dB fractional bandwidth of 46.55% (6.33-10.17 GHz), a wide 20-dB stopband rejection up to 2 f0 (f0: the passband's center frequency), and simultaneous broad CM suppression range (24-dB up to 4.85 f0).

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Section: Introductionmentioning

confidence: 99%

Broadband balanced filter with high common-mode suppression and wide stopband based on SIW and SSPP

Liu,

Xue,

2024

IEICE Electron. Express

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“…A resonant ring can be added in the middle of the SSPPs’ transmission line [ 11 , 12 , 13 , 14 ] so that the electromagnetic energy can be absorbed at the center frequency of the left parasitic passband. Another type of structure that combines substrate integrated waveguide (SIW) with SSPPs, known as a hybrid SIW-SSPP structure, has also been proposed [ 15 , 16 , 17 ]. By employing the low-pass characteristic of SSPPs and the high-pass characteristic of SIWs, the upper and lower frequencies of the transition bands have been improved at the same time.…”

Section: Introductionmentioning

confidence: 99%

An On-Chip Bandpass Filter Using Complementary Slit-Ring-Resonator-Loaded Spoof Surface Plasmon Polaritons with a Flexible Notch-Band

Cao

Wang

et al. 2023

Micromachines

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In this paper, an on-chip bandpass filter with enhanced notch-band is proposed based on the artificial spoof surface plasmon polariton (SSPP) structure around 60 GHz. The shapes of the tabs are modified to incorporate complementary slit-ring resonators (CSRRs) between tabs. The passband is produced by the first higher mode of the SSPP structure. By adding CSRRs, two notch frequencies have been produced in the passband. The advantage of the proposed structure is that these two transmission zeros are almost independent of each other and they do not have much impact on the frequency of the passband. Based on the measured results, the proposed filter has an insertion loss of 2.6 dB with the bandwidth of 14.3 GHz. The return loss is better than 12 dB. The notch-band has a bandwidth of 3.3 GHz with a suppression level over 20 dB. The proposed filter can be applied in the shared millimeter waveband of 5G communication systems.

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“…In addition, the SSPP waveguides in [22,23,24] consist of conventional rectangle-shaped unit cells, so there is limited freedom to regulate the dispersion characteristics. Moreover, it is necessary to miniaturize the sizes of rectangle-shaped SSPP unit cells [25,26]. This paper proposes a novel compact and broadband filtering balun based on the N-shaped SSPP structure.…”

Section: Introductionmentioning

confidence: 99%

Design of compact and broadband filtering balun based on N-shaped spoof surface plasmon polaritons

Líu

2023

IEICE Electron. Express

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This paper presents a novel compact and broadband filtering balun using N-shaped spoof surface plasmon polaritons (SSPPs). The N-shaped SSPP unit cell's lateral size has a 48% reduction compared to the rectangle-shaped counterpart. The proposed filtering balun is constructed by periodically etching N-shaped and mode-matching SSPP unit cells into the slotline balun consisting of the microstrip-toslotline transition (MST) structures. The combination of the N-shaped SSPP unit cells and slotline balun realize the compactness and the broadband bandpass filtering response. Moreover, we can individually adjust the passband's lower and upper cut-off frequencies. Due to the larger phase constant of the N-shaped SSPP unit cell, the field-confined ability of the proposed filtering balun is enhanced. The proposed design is fabricated and measured. It has advantages in bandwidth, stopband performance, size, and degree of design freedom compared with existing SSPP filtering baluns.

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Wideband Substrate Integrated Waveguide Chip Filter Using Spoof Surface Plasmon Polariton

Cited by 13 publications

References 35 publications

Broadband balanced filter with high common-mode suppression and wide stopband based on SIW and SSPP

Broadband balanced filter with high common-mode suppression and wide stopband based on SIW and SSPP

An On-Chip Bandpass Filter Using Complementary Slit-Ring-Resonator-Loaded Spoof Surface Plasmon Polaritons with a Flexible Notch-Band

Design of compact and broadband filtering balun based on N-shaped spoof surface plasmon polaritons

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