Negative Index Material Composed of Meander Line and SRRS

Tang, Wenxuan; Zhao, Hui; Zhou, Xiao-Yun; Chin, Jessie Yao; Cui, and Tie-Jun

doi:10.2528/pierb08051201

Cited by 31 publications

(12 citation statements)

References 21 publications

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“…For the sake of avoiding lumped elements, meander lines can be used instead of straight lines in the metallic patterns to enhance the effective inductances [16][17][18]. Meanwhile, the couplings between properly arranged neighboring metallic patterns also bring about quite considerable capacitive couplings which can also be used to enhance the effective capacitance.…”

Section: Designmentioning

confidence: 98%

Extremely sub-wavelength magnetic metamaterials without using lumped elements

Wang

et al. 2014

Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation

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Electrical smallness is one of the most fundamental properties of metamaterials. Generally, the size of a metamaterial unit cell must be less than λ/10. In this paper, we propose the design of extremely sub-wavelength magnetic metamaterials that can be made far less than λ/1000. Based on broadside capacitive couplings, the magnetic resonant frequency of split-ring resonator magnetic metamaterials can be drastically reduced by introducing more shunt capacitances. As an example, we demonstrated by experiment a polarization-independent subwavelength magnetic metamaterial that is as small as λ/38. This design avoids the use of lumped elements whose capacitances/inductances usually vary with frequencies and thus provides an efficient route to deep sub-wavelength metamaterials with stable performances for practical applications.

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Section: Designmentioning

confidence: 98%

Extremely sub-wavelength magnetic metamaterials without using lumped elements

Wang

et al. 2014

Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation

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“…During the last decade, much interest has been focused on the negative index material (NIM, also called left-handed material (LHM) or double negative (DNG) metamaterial) [1][2][3][4][5][6]. NIM has many unique features [7] and fascinating potential applications such as perfect lens [8], cloaking [9], slow light [10], and novel devices [11,12].…”

Section: Introductionmentioning

confidence: 99%

Exotic Characteristics of Power Propagation in the Chiral Nihility Fiber

Dong¹

2009

PIER

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Abstract-The novel characteristics of power propagation of guided modes in the chiral nihility fiber have been investigated theoretically. The formulas of electromagnetic fields in the core and cladding for guided modes are presented in detail. The dispersion equations, energy flux and power of guided modes are derived. The numerical results are given and discussed. Some exotic features of power propagation have been found in the chiral nihility fiber.

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“…ML structures have been used as the constitutive elements of a negative index material in [17]. We here utilize the non-resonant characteristic of the ML structure.…”

Section: Meander-line Based Materials For Gain Enhancementmentioning

confidence: 99%

Meander-Line Based Broadband Artificial Material for Enhancing the Gain of Printed End-Fire Antenna

Chen¹,

Lei²,

Shi³

2015

PIER

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Abstract-A broadband artificial material based on meander-line (ML) structures is proposed for enhancing the gain of printed end-fire antennas. The ML based material with an effective index of refraction greater than 1 behaves as a dielectric lens in improving the directivity of an end-fire antenna. The electric field intensity distribution can be changed by the material, resulting in a more directional emission. Simulated results indicate extending the length or width of the material can lead to more significant gain enhancement without destroying the impedance bandwidth of the antenna. Three printed end-fire antennas with and without material loading are fabricated and measured. The measurements show that end-fire antennas loaded with two and four rows of ML structures can obtain gain increments of 0.6-3.6 dB and 1.2-5.7 dB, respectively, and that the radiation patterns are narrowed in both E-and H-planes over the whole operating band (6-11.5 GHz).

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Negative Index Material Composed of Meander Line and SRRS

Cited by 31 publications

References 21 publications

Extremely sub-wavelength magnetic metamaterials without using lumped elements

Extremely sub-wavelength magnetic metamaterials without using lumped elements

Exotic Characteristics of Power Propagation in the Chiral Nihility Fiber

Meander-Line Based Broadband Artificial Material for Enhancing the Gain of Printed End-Fire Antenna

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