Novel SHF-Band Uniplanar Artificial Magnetic Conductor

Cos, M. E. de; Álvarez, Yuri; Hadarig, Ramona Cosmina; Las-Heras, Fernando

doi:10.1109/lawp.2010.2041890

Cited by 43 publications

(32 citation statements)

References 23 publications

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“…The separation between each probe is 2 m to avoid mutual coupling. The far-field distance L can be estimated as L = 2D 2 /λ = 0.56 m, where D is the size of designed antenna (D = 10.9 cm) and λ is the wavelength corresponding to the up limit of the frequency band (7 GHz, λ = 4.28 cm) to make sure that the scattered field is acquired in the far-field region [18]. The measured monostatic RCS of the two antennas is shown in Fig.…”

Section: Reduction Of Antenna's Rcsmentioning

confidence: 99%

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

Zhang¹,

Cao²,

Gao³

et al. 2014

PIER Letters

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Abstract-In this letter, a novel dual-band metamaterial absorber is presented and analyzed. The absorber is composed of four patches on the top of a thin grounded dielectric substrate which can absorb incident wave at two different frequency bands effectively. Then the absorber is loaded on the dual-band microstrip antenna, whose working frequency bands are overlapped with that of the absorber, to reduce the in-band RCS (Radar Cross Section) of antenna. The prototype is simulated, manufactured and measured. Simulated results show that the absorption of the absorber is as high as 98.6% at 4.29 GHz and 99.8% at 6.49 GHz. As to the dual-band antenna loaded with the proposed absorber, its radiation performance is unchanged while the RCS has declined by 8.59 dB at 4.29 GHz and 9.9 dB at 6.49 GHz respectively. There is a good agreement between simulated and measured results, which verifies that this absorber can be used for in-band RCS reduction of dual-band antenna so as to improve its in-band stealth performance.

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Section: Reduction Of Antenna's Rcsmentioning

confidence: 99%

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

Zhang¹,

Cao²,

Gao³

et al. 2014

PIER Letters

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“…The unit-cell geometry designed by the authors in [4] is taken as reference for the Dipole-AMC combination. In this letter, the resonance frequency and dielectric substrate are changed with respect to [4].…”

Section: Amc Designmentioning

confidence: 99%

UHF Dipole-AMC Combination for RFID Applications

Hadarig

Cos

Las-Heras

2013

Antennas Wirel. Propag. Lett.

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The design of a novel dipole-artificial magnetic conductor (AMC) combination for UHF radio frequency identification (RFID) band, showing proper performance in the proximity of metallic surfaces, surrounding a metallic can and being conformed around the human wrist is presented. The prototypes of the dipole antenna alone and dipole antenna combined with the AMC are manufactured using laser micromachining. To the authors' knowledge, this is the first letter presenting the actual functionality of antennas and AMCs at UHF RFID frequency in order to insulate the user's body from undesired exposure to electromagnetic radiation. The experimental results of the manufactured prototypes in terms of return loss and radiation pattern measurements in an anechoic chamber are shown for comparison.Index Terms-Artificial magnetic conductor (AMC), balance-to-unbalanced transformer, dipole antenna, radio frequency identification (RFID).

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“…In [9], a trade-off solution regarding substrate's relative dielectric permittivity is adopted in order to obtain both compact size and broad AMC operation bandwidth.…”

Section: Planar Amc Designmentioning

confidence: 99%

“…In this contribution, the same unit cell design of [9] is going to be used, but with a different dielectric substrate, RO3003 of Rogers, which is bendable and has the same thickness (h = 0.762 mm (30 mils)), a slightly lower relative dielectric permittivity (ε r = 3.0) and loss tangent (0.0013). For the same unit cell size a slight shift to a higher resonance frequency would be expected, due to the reduction in the relative dielectric permittivity.…”

Section: Planar Amc Designmentioning

confidence: 99%

“…In this contribution, the novel AMC design with neither via holes nor multilayer substrates presented in [9] is manufactured using a bendable dielectric substrate, which adds the advantage of flexibility to the resulting AMC structure, preserving the design features remarked in [9]: planar feature, compact size, low dielectric losses and broad AMC operation bandwidth, as it will be shown in the section II. In this way, a flexible AMC which meets the reduced-cost and easy-tomanufacture-and-integrate requirements is obtained.…”

Section: Introductionmentioning

confidence: 99%

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Flexible Uniplanar Artificial Magnetic Conductor

Cos¹,

Álvarez-López²,

Hadarig³

et al. 2010

PIER

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Abstract-The design of a flexible uniplanar AMC is presented. A prototype is manufactured and characterized based on reflection coefficient phase under flat and bent conditions. The designed prototype shows broad AMC operation bandwidth and polarization angle independency in both flat and bent situations. Its angular margin when operating under oblique incidence is also tested. FEM simulations and measurements in an anechoic chamber are presented.

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Novel SHF-Band Uniplanar Artificial Magnetic Conductor

Cited by 43 publications

References 23 publications

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

UHF Dipole-AMC Combination for RFID Applications

Flexible Uniplanar Artificial Magnetic Conductor

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