Metamaterial Tri-Band Bandpass Filter Using Meander-Line With Rectangular-Stub

Kumar, Ashish; Choudhary, Dilip Kumar; Chaudhary, Raghvendra Kumar

doi:10.2528/pierl16123103

Cited by 15 publications

(12 citation statements)

References 14 publications

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“…The meander line is a common structure to reduce the size of the unit cell [23,24]. In this study, the meander line covers the entire unit as much as possible to obtain a higher inductance and fully reduce the unit size.…”

Section: Design Of the Fsrmentioning

confidence: 99%

Miniaturized Frequency Selective Rasorber Based on Meander-Lines Loaded Lumped Resistors and a Coupled Resonator Spatial Filter

Shen¹,

Kou²,

Yu³

et al. 2020

PIER M

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This paper presents a miniaturized frequency selective rasorber (FSR) with both wide absorption and transmission bands. The proposed FSR consists of a resistive sheet and a band-pass frequency-selective surface (FSS) with non-resonant constituting elements. The unit cell structure of the resistive sheet is a meander line loaded with four lumped resistors, which generate a wide absorption band from 2.4 to 6.2 GHz, while the layer of FSS is coupled resonator spatial filter (CRSF) that generates a wide transmission band from 7.5 to 10.2 GHz. Furthermore, there is a 10.5 mm air spacer between the resistive and FSS layers. The period of the FSR structure, which maintains its passband and absorption band performance, is only 10 mm (0.08λ L). Simulated and measured results are compared and found to show good agreement.

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Section: Design Of the Fsrmentioning

confidence: 99%

Miniaturized Frequency Selective Rasorber Based on Meander-Lines Loaded Lumped Resistors and a Coupled Resonator Spatial Filter

Shen¹,

Kou²,

Yu³

et al. 2020

PIER M

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“…In order to discuss the dispersion relation for the designed dual-band band-pass filter, Bloch-Floquet theorem along with evaluated immittances of the equivalent circuit diagram has been utilized. According to Bloch-Floquet theorem the dispersion relation can be expressed as equation (1) [3]: where d stands for the physical length of the unit cell and β ( ω ) is a propagation constant.…”

Section: Design Analysis and Modelingmentioning

confidence: 99%

“…The designed filter structure is configured with the open ended boundary condition so in this case the ZOR frequency can be estimated by shunt parameters, as equation (5). Apart from this, dispersion relation can also be estimated with the help of scattering parameters as shown in equation (8) [3, 19]: where S 11 and S 22 represent reflection coefficients and S 12 and S 21 indicate transmission coefficients for any two-port network.…”

Section: Design Analysis and Modelingmentioning

confidence: 99%

Miniaturized open-ended dual-band band-pass filter with series stepped capacitance and shunt meandered line inductance for microwave frequency applications

Mishra

Choudhary

Chaudhary

2019

Int. J. Microw. Wireless Technol.

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In this paper, a miniaturized open-ended dual-band band-pass filter with stepped series capacitance and shunt meandered line inductance for microwave frequency applications has been designed and discussed. In order to offer ease of fabrication and uniplanar configuration, coplanar waveguide feeding arrangement has been used. Zeroth order resonance, a special phenomenon of composite right/left handed transmission line has been utilized to miniaturize the filter size. The designed filter structure offers miniaturization with overall footprint size of 0.26λg × 0.19λg, where λg is the guided wavelength at the center frequency of 1.46 GHz. It offers 58.90% (1.03–1.89 GHz) and 25.93% (2.55–3.31 GHz) measured −3 dB fractional bandwidth with respect to the center frequencies of 1.46 and 2.93 GHz, respectively. Dispersion plot has been utilized to discuss the metamaterial properties for the proposed dual-band band-pass filter. In addition to above, the proposed filter structure presents almost flat group delay curve within both passbands. The proposed filter structure can be suitably utilized for distinct wireless applications, for example global navigation satellite system (1.559–1.610 GHz), GSM1800 (1.7–1.8 GHz), Wi-MAX (2.5–2.7 GHz), and naval radar and air traffic control (2.7–2.9 GHz).

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“…A work has been reported based on composite MTM and parallel step impedance resonator to get triple passband filter in addition with TZs [13]. In [14], a MTM triple-band filter has been designed using meander line and rectangular stub which realizes virtual ground concept. A compact triple band bandpass filter has been proposed using complementary split ring resonator and Koch fractal shape transmission line [15].…”

Section: Introductionmentioning

confidence: 99%

A Compact Triple Band Metamaterial Inspired Bandpass Filter Using Inverted S-shape Resonator

Chaudhary¹,

Chaudhary²

2018

RADIOENGINEERING

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This paper presents the compact metamaterial inspired triple-band filter using two inverted S-shape resonators and two C-shape stubs with via. The proposed filter is printed on FR-4 epoxy glass substrate with 1.6 mm thickness. The 3-dB measured fractional bandwidths are 40% (1.6-2.4 GHz), 16.5% (3.9-4.6 GHz) and 14.3% (5.2-6.0 GHz) at center frequencies 2.0 GHz, 4.25 GHz and 5.6 GHz, respectively. This filter offers electrical circuit size of 0.22λ g × 0.16λ g where given λ g is the guided wavelength at center frequency of the first passband 2.0 GHz. The performance parameter of the designed filter have been characterized by fractional bandwidth, insertion loss, dielectric constant, return loss, circuit size and group delay. Both simulated and measured results are shown to validate the proposed filter. Finally, the MTM properties of the proposed filter have been verified by extracting its dispersion diagram. It is suitable for GSM 1800, LTE 2300 and WiMAX (5.2-5.8 GHz) application.

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Metamaterial Tri-Band Bandpass Filter Using Meander-Line With Rectangular-Stub

Cited by 15 publications

References 14 publications

Miniaturized Frequency Selective Rasorber Based on Meander-Lines Loaded Lumped Resistors and a Coupled Resonator Spatial Filter

Miniaturized Frequency Selective Rasorber Based on Meander-Lines Loaded Lumped Resistors and a Coupled Resonator Spatial Filter

Miniaturized open-ended dual-band band-pass filter with series stepped capacitance and shunt meandered line inductance for microwave frequency applications

A Compact Triple Band Metamaterial Inspired Bandpass Filter Using Inverted S-shape Resonator

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