High Gain and Low-Profile Stacked Magneto-Electric Dipole Antenna for Phased Array Beamforming

Dong, Hyun-Jun; Kim, Ye-Bon; Joung, Jingon; Lee, Hanlim

doi:10.1109/access.2020.3027813

Cited by 12 publications

(6 citation statements)

References 18 publications

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“…Notably, the implementation of a co-simulation between the basic ME dipole and its front-feeding circuit necessitates an equivalent circuit model of the antenna. Thus far, many equivalent circuit models have been proposed for this kind of antenna [20][21][22][23]. However, these models failed to reveal the real impedance characteristics of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Numerical Extraction of the Equivalent Circuit for a Basic Magnetoelectric Dipole Antenna

Li,

Tang,

Zhao

et al. 2024

J. Electromagn. Eng. Sci

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Magnetoelectric dipoles have attracted global research attention due to its broadband, unidirectional, and high front-to-back ratio characteristics. This study implemented a co-simulation between a basic magnetoelectric dipole and its front feeding circuit through the step-by-step numerical extraction of its equivalent circuit model equipped with lumped and frequency-independent components. First, the series resonance subcircuit was derived from the series resonance point in the impedance of the magnetoelectric dipole. Second, the parallel resonance sub-circuit was achieved based on the parallel resonance point. By combining the series and parallel sub-circuits according to the sequence of their resonance frequency, the final form of the equivalent circuit for the basic magnetoelectric dipole was realized. Furthermore, to obtain the component values of the proposed circuit, a numerical fitting technique was adopted to accurately match the input impedance of the antenna and its equivalent circuit. A comparison of the circuit and antenna electromagnetic simulations showed that they agreed well with each other. Hence, the correctness and feasibility of the extraction process were verified. The overall results showed that the proposed circuit model can easily substitute for a basic magnetoelectric dipole in the implementation of antenna/circuit cosimulation in circuit simulators.

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Section: Introductionmentioning

confidence: 99%

Numerical Extraction of the Equivalent Circuit for a Basic Magnetoelectric Dipole Antenna

Li,

Tang,

Zhao

et al. 2024

J. Electromagn. Eng. Sci

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show abstract

“…But, the metal cavity and high profile makes structure bulky. A low‐profile planar ME antenna loaded by metasurface with a thickness of 0.14 λ 0 proposed in [13] provides 5.2% of bandwidth and maximum gain of 9.6 dBi. A proximity coupled wideband printed ME dipole antenna with 0.19 λ 0 profile shows 54% bandwidth and maximum gain of 9.2 dBi [14].…”

Section: Introductionmentioning

confidence: 99%

Wideband low‐profile magneto–electric dipole antenna stacked with patch and metasurface

Nagarnaik,

Mukherjee

2023

Electronics Letters

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Here, a novel low‐profile wideband and high‐gain magnetoelectric dipole antenna with metasurface superstrate is proposed. The magnetoelectric dipole antenna printed on single layer consists of a probe fed patch with four shorted patches arranged symmetrically. Gain enhancement is achieved by placing two side walls and metasurface superstrate with an air gap. Additional rectangular patch connected to the same probe is placed above the magnetoelectric dipole antenna within an air gap. This improves impedance bandwidth, gain and efficiency significantly. Overall profile of antenna is 0.15 λ0, which is lower compared to conventional magnetoelectric dipole antennas with a profile of 0.25λ0. The proposed antenna fabricated on FR4 substrate shows 57% of wide impedance bandwidth from 3.63 to 6.57 GHz with overall size of 1λ0 × 1λ0 × 0.15λ0. The maximum gain in the operating band is 10.2 dBi.

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“…Several methods have been proposed in the literature for enhancing the performance of planar antennas in terms of gain and directivity, some of which include: (i) arranging planar antennas in an array configuration [32], [33], (ii) loading a reflector layer [34], [35], (iii) utilization of shorting pins to optimize the impedance matching of the planar antenna [36], [37], (iv) employing high permittivity substrates [38], [39], (v) altering the basic shape of the antenna [40], [41], (vi) utilizing multiple substrates [42], [43], (vii) loading artificial materials such as Frequency Selective Surface (FSS) [44]− [46], Electromagnetic Band-Gap (EBG) [47], [48], Metasurfaces [49], [50], or Artificial Magnetic Conductor (AMC) [51], [52]. However, most of these approaches have drawbacks, such as bulky structures, they are complex and often difficult to fabricate, require complicated power distribution, exhibit narrow bandwidth, etc.…”

Section: Introductionmentioning

confidence: 99%

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

2022

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Metamaterials (MTMs) are artificially engineered materials with unique electromagnetic properties not occurring in natural materials. MTMs have gained considerable attention owing to their exotic electromagnetic characteristics such as negative permittivity and permeability, thereby a negative refraction index. These extraordinary properties enable many practical applications such as super-lenses, and cloaking technology, and are used to design different electromagnetic devices like filters, polarization converters, sensors, and absorbers. Advances in MTMs have made new application fields to emerge in communication subsystems, especially in the field of antennas. MTMs are usually arranged in front or above the radiating element, or incorporated in the same substrate to improve the performance of planar antennas, in terms of improving directivity, gain, bandwidth, and efficiency, reducing the size and mutual coupling, and deflecting the radiation characteristics. High gain antennas are demanded in modern wireless communication systems. Their importance is in improving the signal strength by reducing the interference and alleviating the free space path loss. This review paper provides a brief introduction to MTMs, with the focus on their operating principles. Furthermore, a detailed study of antenna gain enhancement based on the various properties of MTMs is carried out. MTMs with low values of constitutive parameters; zero-index material (ZIM), lowindex material (LIM), epsilon-near-zero (ENZ), and mu-near-zero (MNZ) are discussed in detail in the context of their capability to enhance the gain of a broad class of planar antennas. The low impedance property and lensing property, which is achieved by three different characteristics: high refractive index (HRI), gradient refractive index (GRIN), and negative refractive index (NRI) materials, are loaded to planar antennas for gain enhancement. The scope of this review has been limited to antennas that were experimentally validated in the respective source papers.INDEX TERMS Metamaterials (MTMs), gain enhancement, low impedance MTM, MTM lens, planar antennas, ZIM.

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High Gain and Low-Profile Stacked Magneto-Electric Dipole Antenna for Phased Array Beamforming

Cited by 12 publications

References 18 publications

Numerical Extraction of the Equivalent Circuit for a Basic Magnetoelectric Dipole Antenna

Numerical Extraction of the Equivalent Circuit for a Basic Magnetoelectric Dipole Antenna

Wideband low‐profile magneto–electric dipole antenna stacked with patch and metasurface

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

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