High‐gain magnetic‐dipole quasi‐Yagi antenna using higher‐order‐mode dielectric resonator with near‐zero‐index metamaterial

Yang, Ling‐Ling; Ke, Yan‐Hui; Zhang, Qian; Chen, Jianxin

doi:10.1002/mmce.22329

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…Besides, in Table 4, the performance of four different high‐gain antennas is listed for comparison with this paper. In References 26‐29, four common methods for improving antenna gain were proposed. As can be seen from Table 4, this paper has advantages in the −10 dB impedance bandwidth, −3 dB gain bandwidth, minimum half‐power lobe width, and maximum gain.…”

Section: Results For Antennasmentioning

confidence: 99%

Design of high gain Vivaldi antenna with a compound optical lens inspired by metamaterials

Cheng

Hua

Wang³

et al. 2021

Int J RF Mic Comp-Aid Eng

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A kind of compound optical lens (COL) inspired by metamaterials whose unit cell is a closed symmetric S‐type resonator (CSSR) is designed to enhance the gain and directivity of the antipodal Vivaldi antenna (AVA). COL, composed of a plano‐convex lens and a double‐convex lens, can generate a very narrow beam with a half‐power beamwidth of 11.2° at 12 GHz. Traditional metamaterial lenses can only convert spherical waves into plane waves. Although the gain will increase, the beamwidth of the antenna is still very wide. COL can focus the plane wave transformed from the spherical wave, which makes the radiation beam extremely narrow. The proposed antenna has a −10 dB impedance bandwidth of 169.2% (1.0‐12.0 GHz) and a −3 dB gain bandwidth of 133.3% (2.0‐10.0 GHz) and a maximum gain enhancement of 5 dBi. The experimental results of the antennas agree with the simulation results. The proposed antenna is eventually a suitable candidate for wireless communications and radar applications.

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Section: Results For Antennasmentioning

confidence: 99%

Design of high gain Vivaldi antenna with a compound optical lens inspired by metamaterials

Cheng

Hua

Wang³

et al. 2021

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

show abstract

“…The traditional end‐fire antenna type is Yagi antenna, which owns superior endfire performance with reflectors and directors. With the development of printed circuit board technology, planar printed Yagi antennas 1‐4 are also attracted many attentions due to several favorable features, such as compact size, lightweight, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Design of wideband end‐fire composite microstrip‐monopole antenna

Yang

Liu

et al. 2021

Int J RF Microw Comput Aided Eng

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This article introduces a wideband composite antenna with end‐fire radiation. The structure is achieved by uniting a center‐fed microstrip shorted patch and a parasitical monopole. The monopole is vertical to the substrate and work as an electric current source. Because the loaded monopole breaks the symmetry of the center‐fed microstrip antenna, the original patch antenna can work as in‐phase equivalent magnetic current sources radiation. Then complementary sources are generated by orthometric magnetic current source and electric current source. The typical unidirectional radiation capacity has a good endfire beam. The loaded monopole adds a resonant mode to the original microstrip antenna, which makes the composite microstrip‐monopole antenna to exhibit an enhanced bandwidth of 26.9% and an average gain of 7.5 dBi. The complementary sources radiation mechanism can generate special unidirectional radiation patterns in a compact space, so this antenna type is an excellent candidate for array applications. The prototype's planar size is only 0.36λ0 × 0.39λ0 (λ0 is the free space wavelength in center frequency). The eight elements phased array with the proposed antenna show perfect simulated scanning performance.

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