Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Broadband Bandpass Filter With Wide Out-of-Band Rejection

Chen, Peng; Li, Luping; Yang, Kai; Chen, Qiang

doi:10.1109/lmwc.2018.2869290

Cited by 103 publications

(40 citation statements)

References 12 publications

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“…Table 2 compares the proposed band-pass filter with some previous hybrid SIW and SSPPs filters in terms of simulated performances, where λ is the wavelength at the lowest frequency. It is seen that the band-pass filters in 26 and 28 have a smaller thickness, but their transmission efficiency needs to be improved. The filters in 7 and 27 have a high efficiency, but these have wide width or thick substrate.…”

Section: Resultsmentioning

confidence: 99%

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A Band-Pass Filter Based on Half-Mode Substrate Integrated Waveguide and Spoof Surface Plasmon Polaritons

Zhao

Chen

et al. 2019

Sci Rep

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In this paper, a band-pass filter based on half-mode substrate integrated waveguide (HMSIW) and double-layer spoof surface plasmon polaritons (SSPPs) consisting of two corrugated metal strips is proposed, which can realize band-pass transmission by etching periodic grooves at the top and bottom metal layers of the HMSIW. Moreover, the influences of important parameters on the performance of the proposed band-pass filter are analyzed by parametric study. By changing the key parameters, the low and high cut-off frequency can be controlled independently. The corresponding equivalent circuit of the proposed band-pass filter is put forward to explain the physical mechanism. Compared with the previous structures, this structure features smaller size, wider bandwidth and lower loss. Simulated results show that the proposed band-pass filter achieves a bandwidth (for |S11| < −10 dB and |S21| > −0.8 dB) of about 69.77% (15.6–32.1 GHz). The measured results have good agreements with the simulated ones, which verify that the proposed band-pass filter has good performances and potential applications at the microwave frequencies.

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Section: Resultsmentioning

confidence: 99%

“…Considering the low-pass features of SSPPs structure and high-pass features of SIW structure, the first hybrid SSPP-SIW filter was proposed 7 . Recently, a band-pass filter based on the SSPPs and SIW was proposed 26 . But the filter using SIW combined with SPPs has a larger size, which is not easy for integration.…”

Section: Introductionmentioning

confidence: 99%

A Band-Pass Filter Based on Half-Mode Substrate Integrated Waveguide and Spoof Surface Plasmon Polaritons

Zhao

Chen

et al. 2019

Sci Rep

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“…This requires the design of plasmonic waveguides carrying tightly confined electromagnetic modes, preferably with subwavelength transverse cross section. Recently, a hybrid spoof SPPs has been put forward, which is composed of periodically rectangular air square grooves [32,33] or holes [34] etched on the metal surface of one side of the substrate integrated waveguide (SIW, which is a common transmission line in the high-performance microwave or millimeter wave planar components and circuits) or a series of metallic vias with finite depth [35] inside the SIW to mimic a boxshaped elements of the traditional DSPs. Nevertheless, the most outstanding property of the DSPs that the dispersion relation is insensitive [18][19][20][21][22][23][24][25][26][27][28][29][30][31] to the waveguide transverse dimension cannot be achieved.…”

Section: Introductionmentioning

confidence: 99%

Broadband Plasmonic Circuitry Enabled by Channel Domino Spoof Plasmons

Liu¹,

Li²,

Guo³

et al. 2019

PIER

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Building of compact plasmonic integrated circuits based on domino spoof plasmons (DSPs) is an important requirement and still a challenge. In this work, we report the first demonstration of two kinds of channel domino plasmonic circuitries, which consist of an easy-to-manufacture periodic chain of metallic box-shaped elements inside two finite metallic plates. We reveal that only the channel DSPs itself rather than the hybrid TE 10 and DSPs modes is supported in the part of the channel domino plasmonic waveguide with or without the metallic vias on both sides. Two channel domino plasmonic filters based on the efficient transition structures are designed, and the simulated Sparameters and near electric field distributions show excellent transmission performance in broadband. Utilizing the lateral insensitive property of these two channel DSPs, two kinds of broadband plasmonic power dividers/combiners are firstly implemented. Excellent transmission performance validates our optimizations and indicates that the proposed scheme can be easily extended to other bands. This work provides a new route for construction of deep-subwavelength DSP devices in application of high integration of microwave and terahertz circuits.

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“…Different SSPPs transmission lines (TLs) structures have been proposed for filtering applications including rectangular gratings, 6,7,9,10 semi-elliptical grooves, 11 etched grounds on coplanar waveguide, 12 circular grooves, 13 hybrid substrate integrated waveguide, 14 and many others. [15][16][17][18][19] Recently, modal-dispersion-induced effective SPPs have been proposed by designing transverse electric modes on rectangular waveguides.…”

Section: Introductionmentioning

confidence: 99%

Novel crest‐trough shaped spoof surface plasmon polaritons for low pass filtering applications

Anwar

Mao

Ning

2019

Micro & Optical Tech Letters

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In this letter, a novel periodic crest‐trough (CT) shaped groove structure is proposed to excite and propagate spoof surface plasmon polaritons (SSPPs) at microwave frequency. Such a groove shape solves the problem of high transmission losses found in traditional microstrip transmission lines and presents tighter field confinement. Lower dispersion band is achieved by proposed CT‐SSPPs as compared to traditional structures, with 28% reduced asymptotic frequency than rectangular groove. Influence of some geometrical parameters is also explored. Further, planar low‐pass plasmonic filters with low reflection and high efficiency are investigated with compact transition circuitry for smooth and fast conversion between SSPPs and guided waves. To validate the proposed performance, two plasmonic filter structures are fabricated and measured. Full agreement is observed between the simulated and measured results for which reflection coefficient is lower than −10 dB in passband up to 3.07 and 2.52 GHz, respectively for both filters. The rejection level is higher than −15 dB in the whole stopband.

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Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Broadband Bandpass Filter With Wide Out-of-Band Rejection

Cited by 103 publications

References 12 publications

A Band-Pass Filter Based on Half-Mode Substrate Integrated Waveguide and Spoof Surface Plasmon Polaritons

A Band-Pass Filter Based on Half-Mode Substrate Integrated Waveguide and Spoof Surface Plasmon Polaritons

Broadband Plasmonic Circuitry Enabled by Channel Domino Spoof Plasmons

Novel crest‐trough shaped spoof surface plasmon polaritons for low pass filtering applications

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