A Dual-Mode Wideband MIMO Cube Antenna With Magneto-Electric Dipoles

Chen, Shaobo; Luk, Kwai Man

doi:10.1109/tap.2014.2359492

Cited by 32 publications

(2 citation statements)

References 27 publications

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“…In recent years, the ME dipole antenna, which was first proposed by Alvin Chlavin [9] and developed by Luk [10], has attracted lots of research. This kind of antenna has the advantages of wideband, stable unidirectional radiation, low front-back ratio, and equal E and H planes [11][12][13][14]. To reduce the profile of the ME dipole, many methods were proposed in the literature [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Design of a Low-Profile Wideband Magnetoelectric Dipole Antenna with Reduced Gain Drop

Chen

Tang

et al. 2022

Electronics

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In this paper, a novel low-profile magnetoelectric (ME) dipole antenna with wideband is presented. The conventional vertical fixing structure is bended four times from the center to the sides. The Γ-shaped feeding structure is bended two times to lower the height of the antenna step by step. The effect of three kinds of vertical wall is discussed to show their influence on boresight gain. Through comparison, only one vertical wall is erected on the left side of the ground to decrease the boresight gain drop at 2.2 GHz. Both simulation and analysis are made to sufficiently explain the working principle. At last, the proposed ME dipole antenna has only 0.095λ0 (λ0 is the center operating wavelength in free space) in height, and the wideband property is still maintained. By simulation, the relative bandwidth for VSWR < 2.0 is 47.9% (from 1.35 to 2.2 GHz). The boresight gain ranges from 8.1 to 9.6 dBi in the operating band. The measured relative bandwidth for VSWR < 2.0 is 50.3% (from 1.34 to 2.24 GHz), and the boresight gain ranges from 7.38 to 8.73 dBi. The gain drop on boresight is less than 1.4 dBi. Radiation patterns show a unidirectional characteristic in the whole operating band. Additionally, the cross-polarization level is less than −25 dB on boresight. The simulating and measuring results agree well with each other. Therefore, the proposed antenna is suitable for applications of limited height and wideband.

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Section: Introductionmentioning

confidence: 99%

Design of a Low-Profile Wideband Magnetoelectric Dipole Antenna with Reduced Gain Drop

Chen

Tang

et al. 2022

Electronics

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“…By applying the concept of the complementary antenna [13][14][15][16][17][18][19] for each radiating element, an electric dipole, consisting of two metallic cuboids, was introduced to each slot of the waveguide slot array in Reference [20] for Ku-band applications. The whole structure was constructed using aluminum.…”

Section: Introductionmentioning

confidence: 99%

3D Printed High Gain Complementary Dipole/Slot Antenna Array

Luk

Chan

et al. 2018

Applied Sciences

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By employing the complementary dipole antenna concept to the normal waveguide fed slot radiator, an improved antenna element with wide impedance bandwidth and symmetrical radiation patterns is developed. This is achieved by mounting two additional metallic cuboids on the top of the slot radiator, which is equivalent to adding an electric dipole on top of the magnetic dipole due to the slot radiator. Then, a high-gain antenna array was designed based on the improved element and fabricated, using 3D printing technology, with stable frequency characteristics operated at around 28 GHz. This was followed by metallization via electroplating. Analytical results agree well with the experimental results. The measured operating frequency range for the reflection coefficient ≤−15 dB is from 25.7 GHz to 29.8 GHz; its corresponding fractional impedance bandwidth is 14.8%. The measured gain is approximately 32 dBi, with the 3 dB beamwidth around 4°.

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L‐Probe Patch Antennas on Dielectric Substrate

Lai

Luk

2016

Wiley Encyclopedia of Electrical and Electronics Engineering

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This article introduces the performance of conventional probe‐fed patch antennas with different substrate layers. Then, the geometry of L‐probe fed patch antennas with multiple dielectric layers is discussed. By embedding layers of finite dielectric materials, the L‐probe fed patch antennas achieve wideband performance. The low‐profile characteristic of patch antenna is also retained, and the size of the antenna can be minimized to have a surface area. It is expected that the L‐probe patch antenna design would be attractive in base station antenna design for MIMO (multiple input and multiple output) systems with its characteristics of low profile and compact size.

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A Dual-Mode Wideband MIMO Cube Antenna With Magneto-Electric Dipoles

Cited by 32 publications

References 27 publications

Design of a Low-Profile Wideband Magnetoelectric Dipole Antenna with Reduced Gain Drop

Design of a Low-Profile Wideband Magnetoelectric Dipole Antenna with Reduced Gain Drop

3D Printed High Gain Complementary Dipole/Slot Antenna Array

L‐Probe Patch Antennas on Dielectric Substrate

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