A Novel High-Directivity Microstrip Patch Antenna Based on Zero-Index Metamaterial

Zhou, Haijing; Pei, Zhibin; Qu, Shaobo; Zhang, Song; Wang, Jiafu; Duan, Z.; Ma, Hua; Xu, Zhuo

doi:10.1109/lawp.2009.2018710

Cited by 126 publications

(14 citation statements)

References 10 publications

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“…With the rapid development of metamaterial theory, the application of metamaterials such as metamaterial lenses [4,5,6], metamaterial electromagnetic cloaks [7], perfect metamaterial absorbers [8], and so on becomes more and more popular. What’s more, the combination of metamaterial and antenna has improved the performance of antennas such as low-profile high-gain patch antennas [9,10], compact microstrip antennas [11,12], dual-frequency and broadband circular patch antennas [13,14], and so on. The frequency-diverse metamaterial antenna is also a new kind of antenna that can generate radiation patterns with low correlation coefficients at different frequencies, which can be used as different measurement modes in coincidence imaging.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Diverse Bunching Metamaterial Antenna for Coincidence Imaging

Zhao

Zhu

et al. 2019

Materials

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A frequency-diverse bunching metamaterial antenna for coincidence imaging in the Ka band is proposed in this paper. The bunching metamaterial antenna includes a broadband circular array and a frequency-diverse bunching metalens. Firstly, in order to enhance the bunching characteristic, the broadband circular array is designed based on the 60-degree beamwidth design to generate radiation patterns from 32 GHz to 36 GHz. Then, types of metamaterial elements with different transmission phases are selected to form the frequency-diverse bunching metalens based on a random distribution design and gradient zoom coefficient design. Moreover, the bunching metamaterial antenna is constituted by loading the frequency-diverse bunching metalens to the broadband circular array, which can generate frequency-diverse bunching random radiation patterns with beamwidth less than 100 degrees from 32 GHz to 36 GHz. Furthermore, the performances of the bunching metamaterial antenna, including the reflection coefficient, the radiation efficiency, and the correlation coefficients of radiation patterns at different frequencies are evaluated. Finally, the coincidence imaging experiment is implemented using the bunching metamaterial antenna and the image of the target is reconstructed successfully. The design is verified by simulations and measurements.

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Section: Introductionmentioning

confidence: 99%

Frequency-Diverse Bunching Metamaterial Antenna for Coincidence Imaging

Zhao

Zhu

et al. 2019

Materials

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“…In Zhou et al. (2009), with ZIM structure as the superstrate of a microstrip patch antenna, 1–2 dB gain improvement was obtained. However, this kind of structure makes the antenna thick in profile and heavy in weight.…”

Section: Introductionmentioning

confidence: 95%

Gain enhancement for wideband end-fire antenna design with artificial material

Wei

Sun

et al. 2016

SpringerPlus

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Gain enhancement wideband end-fire antenna is proposed in this paper. The proposed antenna can achieve gain enhancement by loading novel artificial materials structures (Split-ring Resonators) in the end-fire direction while broad bandwidth is realized by using elliptic dipole elements and a microstrip to coplanar balun. The measurements show that the proposed antenna have around 5–8 dB gain in the working band (5–11 GHz), which is around 2 dB more than the unloaded one. This antenna can be used in target recognition systems for its advantages of end-fire radiation broad bandwidth and high gain.

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“…MTM are artificial materials whose qualities can be inferred both from its component parts and from their main use. For hundreds of years, analysts have been incredibly interested in MTM, which is close to a zero-index of refraction [7][8][9]. Based on the limits of the significant flaw inserted inside the false design, a Zero-Index Metamaterial (ZIM) is typically meant to function as a reflector or a transmitter [7].…”

Section: Introductionmentioning

confidence: 99%

Zero-Biasing Split Ring Resonator using Metamaterial Element for High Gain Superstrates Ultra-Wideband Antenna

Othman

Jamlos²,

Mustafa³

et al. 2023

ARASET

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Complex materials with artificial structures known as metamaterials (MTM) have unique properties that draw several scientists to use them in a variety of research fields. In addition, MTM can go beyond some of the restrictions placed on tools used in technical practise while improving the characteristics of microwaves. The Internet of Things (IoT) application calls for the construction of zero-index Split Ring Resonator (SRR) MTM element superstrates with an ultra-wideband antenna. Keep in mind that the MTM simulates behaviour that is not found in nature, namely the zero-reflection phase (dB) on the resonance frequency. For this project, an antenna with an SRR MTM unit cell operating at 2.70 GHz is built. The SRR has four inductance-related loops (r1, r2, r3, and r4), and gaps (slots) are added to the ring to produce the capacitance effect. Parametric research has been done for the SSR in the interim to identify the best design with zero indexes, permittivity and permeability at the desired frequency. The MTM unit cells array design's 7 x 4 and 10 x 5 dimensions achieved a dB of 0° at the 2.70 GHz frequency range. A 7 x 4 MTM unit cell makes up the first design, MTM Antenna Design 1, which at 2.70 GHz recorded a gain of 5.70 dB and a return loss (S11) of -20.007 dB. The return loss (S11) at a frequency of 2.70 GHz was -19.734 dB in the second design, an MTM antenna consisting of 10 x 5 MTM unit cells, which recorded a gain of 5.66 dB.

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A Novel High-Directivity Microstrip Patch Antenna Based on Zero-Index Metamaterial

Cited by 126 publications

References 10 publications

Frequency-Diverse Bunching Metamaterial Antenna for Coincidence Imaging

Frequency-Diverse Bunching Metamaterial Antenna for Coincidence Imaging

Gain enhancement for wideband end-fire antenna design with artificial material

Zero-Biasing Split Ring Resonator using Metamaterial Element for High Gain Superstrates Ultra-Wideband Antenna

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