Design, Analysis and Characterisation of Spoof Surface Plasmon Polaritons based Wideband Bandpass Filter at Microwave Frequency

Mittal, Gaurav; Pathak, Nagendra Prasad

doi:10.14429/dsj.68.11981

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…A conventional symmetric H-shaped unit cell [25][26][27][28][29][30][31] for SSPP structure is shown in Figure 1(a = 1 mm, b = 2 mm, d = 5 mm, h = 4 mm). The equivalent + (plus) shaped unit cell, 32,33 with depth h = 4.0 mm, width e = 3 mm, lattice constant d = 5 mm, and central line width a = 1 mm, is illustrated in Figure 2. The main arm (having width e, thick line) of this unit cell behaves like capacitor.…”

Section: Modeling Of Unit Cellmentioning

confidence: 99%

Spoof surface plasmon polaritons based microwave bandpass filter

Mittal

Pathak

2020

Micro & Optical Tech Letters

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Recently, Plasmonics and metamaterials have been receiving consideration. Spoof surface plasmon polaritons (SSPPs) are a type of electromagnetic surface wave that to a certain limit shares an analogous behavior with surface plasmon polariton (SPP) at microwave frequency domain. The significant point is that the dispersion relation of SSPP is principally controlled by the geometry of the pattern using plasmonic metamaterial. The motivation behind this work is to explore and implement the subwavelength propagation or nanoconfinement of wave beyond the diffraction limit using plasmonic metamaterial‐inspired SSPP structure in the microwave frequency domain. In this article, the conventional symmetric H‐shaped unit cell is modified into a new unit cell. Using this modified unit cell, a new SSPP structure is designed which provides broadband bandpass filter (BPF) characteristics. The measurement shows the passband of BPF is 1.2 to 6.0 GHz with insertion loss less than 2 dB. The size of the fabricated SSPP BPF is 26 × 4 cm.

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Section: Modeling Of Unit Cellmentioning

confidence: 99%

Spoof surface plasmon polaritons based microwave bandpass filter

Mittal

Pathak

2020

Micro & Optical Tech Letters

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“…Multi-mode resonators based triple-band BPF with off-band characteristics has been described in 18 . Different filter architectures for tripleband BPF design have been suggested for ITS and general communication [19][20][21][22][23][24][25][26][27][28] .…”

Section: Introductionmentioning

confidence: 99%

Multi mode Resonator based Concurrent Triple band Band pass Filter with Six Transmission Zeros for Defence Intelligent Transportation Systems Application

et al. 2021

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A compact and highly selective triple-band bandpass filter (BPF) is designed and presented in this paper. Proposed ﬁlter offers low insertion loss, and passband characteristics is achieved by using two coupled MMR multi-mode resonators (MMR1 and MMR2) and an inverted T and circular shape MMRs. The filter operates at frequency 2.43 GHz (Vehicular Communication), 5.91 GHz (ITS band), and 8.86 GHz (satellite communication band). The simulation and measurement results show a minimum insertion loss of 1.6 dB, 0.73 dB, and 2.8 dB for triple-band BPF. The return loss is found to be greater than 13.06 dB, 28.6 dB, and 21.55 dB. It is noted that measurement results are in accordance with the result of electromagnetic simulation. Desired triple-band multi-mode resonators (MMRs) filter characteristics are achieved with six transmission zeroes (TZs). The filter comprises of MMRs which provide small size and control over the spurious frequency. By using a parallel-coupled microstrip line, the first and third passbands are realised. Whereas by using an end-coupled microstrip line, the second passband is recognised. At the input and output ports, the resonator coupling technique is used. By using the anti-parallel microstrip line arrangement, the transmission zero is acquired. The dimensions of the designed filter are 25×16 mm 2.

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“…As a two-dimensional artificial material, metasurface (MS) is composed of sub-wavelength element array [1][2][3][4], which has been widely applied in optoelectronics devices [5][6][7][8][9][10], such as sensor, detector, etc. Because of its ability to effective manipulation of electromagnetic (EM) waves, MS can be especially applied in radar stealth field [11][12][13][14]. In radar stealth field, the radar echo feature signal can be changed to reduce the detection probability of objects [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Study of Energy Scattering Relation and RCS Reduction Characteristic of Matrix-Type Coding Metasurface

et al. 2018

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In this paper, we present a design of the linear polarization conversion metasurface (MS) for the broadband radar cross section (RCS) reduction based on split-ring resonator (SRR) structure in microwave region. The corresponding phase gradient can be obtained through the stable phase difference of basic units of polarization conversion MS. The designed polarization conversion MS is applied in coded electromagnetic (EM) matrix by defining two basic units “0” and “1”, respectively. Based on the principle of planar array theory, a new random coding method named by matrix-type coding is proposed. Correlative RCS reduction mechanism is discussed and verified, which can be used to explore the RCS reduction characteristic. The simulated linear polarization conversion rate of the designed structure is up to 90% in the frequency range of 6–15 GHz, and the RCS reduction results verify the theoretical assumptions. Two kinds of matrix-type coding MS samples are prepared and measured. The experimental results indicate that the reflectance of MS is less than –10 dB on average under normal incidence in frequency range of 5.8–15.5 GHz. The average RCS reduction is essentially more than 10 dB in frequency range of 5.5–15 GHz and the corresponding relative bandwidth is 92.7%, which reasonably agrees with simulation. In addition, excellent RCS reduction characteristic of the designed MS can also be achieved over a wide incident angle.

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Design, Analysis and Characterisation of Spoof Surface Plasmon Polaritons based Wideband Bandpass Filter at Microwave Frequency

Cited by 4 publications

References 16 publications

Spoof surface plasmon polaritons based microwave bandpass filter

Spoof surface plasmon polaritons based microwave bandpass filter

Multi mode Resonator based Concurrent Triple band Band pass Filter with Six Transmission Zeros for Defence Intelligent Transportation Systems Application

Study of Energy Scattering Relation and RCS Reduction Characteristic of Matrix-Type Coding Metasurface

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