High-performance low-pass filter using complementary square split ring resonators defected ground structure

Taher, Hany

doi:10.1049/iet-map.2010.0273

Cited by 13 publications

(8 citation statements)

References 7 publications

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“…However, most of these MPAs are made by adding additional structure so that their structures become more complex. Recently, complementary structures have been applied successfully in the design of various microwave devices [22][23][24][25][26]. Yoo et al [27] studied a waveguide-fed metasurface antennas loaded with complementary metamaterial element and realized a low-loss and high radiation power properties.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Enhancement of Microstrip Patch Antenna Using Complementary Rhombus Resonator

Lei

et al. 2018

Wireless Communications and Mobile Computing

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By using complementary rhombus resonator (CRR), a small-size and low-profile microstrip patch antenna (MPA) with broad bandwidth has been proposed. Parametric studies were conducted to illustrate the working principle of the proposed antenna. An additional resonance is introduced by the CRR to broaden the bandwidth. Compared with the MPA without the CRR, the bandwidth of the proposed antenna is increased by 200%. The measured results are in good agreements with the simulated ones, which demonstrate that this design provides a way to obtain the broadband antenna.

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Section: Introductionmentioning

confidence: 99%

Bandwidth Enhancement of Microstrip Patch Antenna Using Complementary Rhombus Resonator

Lei

et al. 2018

Wireless Communications and Mobile Computing

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“…In many microwave applications, there is a great requirement for the LPF with a compact size, steep rejection and wide stopband. Due to their prominent stopband, electromagnetic band-gap (EBG) structure, defected ground structure (DGS) and defected microstrip structure (DMS) have been widely employed to implement the abovementioned LPF [1,2,3,4,5,6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…The uniform distribution of the periodic patterned structure may suffer from high passband ripples, which can be improved by adopting the non-uniform distribution of dimensions [2,3]. Since the shape of the structure unit holds the key to determining the stopband of LPF, different patterned structures are implemented to obtain a wider stopband [4,5,6,7]. However, a large num of the structure unit are often required to provide a good stopband, causing a relatively large physical size.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized lowpass filter with ultra-wide stopband using dual-plane defected structures

Zhang

Wang

2015

IEICE Electron. Express

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A miniaturized lowpss filter (LPF) with ultra-wide stopband is proposed by using the complementary rectangle split ring defected microstrip structure (CRSR-DMS) and the quad U-shaped defected ground structure (QU-DGS). The presented CRSR-DMS can provide a sharp rejection rate and two obvious attenuation poles while the QU-DGS can produce four independently controlled transmission zeros. Based on the characteristics of the defected structures, the proposed LPF is constructed by using four cascaded CRSR-DMS units and four cascaded QU-DGS units. The measurement result of the designed filter with 3 dB cut-off frequency at 2.0 GHz shows that the obtained 20 dB rejection band ranges from 2.12 GHz to more than 20 GHz within a small circuit area of 0.73λg + 0.13λg, λg being the guided wavelength at 2.12 GHz.

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“…The unique dispersion relation of the CRLH-TL unit cell is combined with the resonant characteristic of the conventional monopole to achieve zeroth-order mode and lower positive-order mode. In the proposed antenna structure, the unit cell is based on Complementary Split Single Ring Resonator (CSSRR) [6]. By loading this kind of CRLH-TL unit cell, lower and multiple operating frequencies are achieved without augmenting the oversize of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Multiband Antenna Based on Loading a CPW-Fed Monopole With One CRLH-Tl Unit Cell

Li¹,

Wang²,

Gao³

et al. 2014

PIER Letters

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Abstract-A Coplanar Waveguide (CPW)-fed monopole loaded with Composite Right/Left Handed Transmission Line (CRLH-TL) unit cell is presented in this letter. Multiband is achieved due to the nonlinear dispersion relation of the CRLH-TL unit cell. The CRLH-TL unit cell supports a fundamental LH wave (phase advance) at lower frequencies and a RH wave (phase delay) at higher frequencies. By loading CRLH-TL unit cells with a conventional monopole, the resonant frequency of higher order mode can be decreased, and zeroth-order mode or even negative-order mode can be achieved. As a result, the proposed antenna operates at 1.43 GHz, 2.58 GHz, 3.31 GHz and 4.4 GHz. Finally the modified antenna is fabricated and measured; measurements and EM simulations are in a good agreement that confirms the proposed theory.

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High-performance low-pass filter using complementary square split ring resonators defected ground structure

Cited by 13 publications

References 7 publications

Bandwidth Enhancement of Microstrip Patch Antenna Using Complementary Rhombus Resonator

Bandwidth Enhancement of Microstrip Patch Antenna Using Complementary Rhombus Resonator

Miniaturized lowpass filter with ultra-wide stopband using dual-plane defected structures

Multiband Antenna Based on Loading a CPW-Fed Monopole With One CRLH-Tl Unit Cell

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