EBG Metamaterial Ground Plane for Mitigation of Multipath Signals in GNSS Antenna

Boyko, Sergey N.; Kukharenko, A. S.; Yaskin, Yury S.

doi:10.5515/jkiees.2015.15.4.199

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…Even though the proposed design is focused on the elimination of the interference at |S 31 |, to the best of the authors’ knowledge, there do not exist appropriate studies applying the metasurface absorber for the same purpose. Therefore, we verify the effectiveness of the proposed design by comparing the mitigation of the mutual coupling from |S 21 | with those reported in the previous studies utilizing a slotted‐complementary split‐ring resonator, 17 a mushroom‐type EM band gap structure, 18 a split‐ring resonator, 19 and a superstrate composed of rectangular patches 20 . Because the mechanism of the proposed scheme that absorbing multiple reflections is different from those of the previous cases that suppressing the mutual coupling, the distance between two ports is quite different from those of the previous cases.…”

Section: Results Of Antenna System Integrated With Metasurface Absorbermentioning

confidence: 64%

Elimination of interference and cross talk from a face‐to‐face‐antennas system by a metasurface absorber

Jang

Kim

Lee

2023

Micro & Optical Tech Letters

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In this letter, a design and an experimental verification of a face-to-faceantennas system combined with a metasurface absorber are presented, from which interference and cross talk are eliminated. First, the metasurface absorber unit cell composed of square copper pixels is optimally designed with the far-field-incidence condition utilizing the genetic algorithm to satisfy the −10 dB reflectance from 5.75 to 5.83 GHz with the minimum reflectance −13.90 dB at 5.8 GHz. Then, the metasurface absorber is integrated into a pair of 2 × 1 array antennas, of which the resonance frequency is 5.8 GHz. The two array antennas are set to face each other to enable short-distance wireless-data transmission between two antennas aligned in a line of sight. By absorbing undesired reflected waves using the metasurface absorber, interference induced on the transmitted spectrum along the vertical direction and cross talk along the horizontal and diagonal directions can be eliminated at the same time. They are confirmed by the simulation results calculated for various distances between the pair of array antennas. The measurements are well matched to the simulations, verifying the accuracy of the proposed design.

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Section: Results Of Antenna System Integrated With Metasurface Absorbermentioning

confidence: 64%

Elimination of interference and cross talk from a face‐to‐face‐antennas system by a metasurface absorber

Jang

Kim

Lee

2023

Micro & Optical Tech Letters

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“…Artificial electromagnetic MTMs have properties that are not usually encountered in nature [7]. Thus, there has been much interest in using artificial electromagnetic MTMs in the design of microstrip antennas over recent years [9][10][11][12]. Approaches to creating an MTM exist within two main categories: resonant and non-resonant [13].…”

Section: Introductionmentioning

confidence: 99%

Theory, Design, and Implementation of a New Family of Ultra-Wideband Metamaterial Microstrip Array Antennas Based on Fractal and Fibonacci Geometric Patterns

Shookooh

Monajati

Khodabakhshi

2020

J Electromagn Eng Sci

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The theory and design of a new family of ultra-wideband (UWB) metamaterial (MTM) microstrip array antennas based on fractal and Fibonacci geometric patterns are investigated. First, the UWB microstrip array antenna is presented with two radiating MTM elements. Then, using fractal and Fibonacci geometric patterns, the array antenna is expanded. Improvements in the antenna parameters is achieved by repeating the second and third iterations of the fractal and Fibonacci patterns. As the order of iteration of the fractal and Fibonacci geometric patterns increases, the impedance bandwidth of the MTM microstrip array antenna increases, and its radar cross-section (RCS) decreases. The impedance bandwidth of the array antenna with two MTM elements is 3.37–9.2 GHz, while the bandwidth of the third-iteration Fibonacci and fractal MTM array antennas are 3.5–10.1 GHz and 3.55–10.34 GHz, respectively. Furthermore, the proposed array antennas exhibit lower RCS due to metal area reduction, with respect to the array antenna with two MTM elements.

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“…Synthetic electromagnetic MTMs have properties that are not commonly found in nature [9]- [12]. In order to create an MTM, there are two methods: non-resonant and resonant [13].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wideband Metamaterial-Loaded Microstrip Array Antennas using Fibonacci & Fractal Geometric Patterns, Design and Modelling

Shookooh

Monajati

Khodabakhshi

2020

EJECE

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In this study; theory, design and modeling of a new topology of ultra-wideband (UWB) metamaterial (MTM) loaded microstrip array antenna using Fibonacci & fractal geometric patterns are analyzed. This antenna is made basically from many monopole elements which are loaded by complementary metamaterial transmission line (CMTL) unit cells. The distributed CMTL element, contains a Koch-shaped expanded complementary single split ring resonator (CSRR) pair. At first step, the UWB microstrip array antenna designed with two CMTL-loaded monopole element. So, using an iterative method based on the Fibonacci and fractal geometry patterns, the array antenna is expanded. As the order of iteration increases, the impedance bandwidth of the proposed array antennas improve more, and the radar cross section (RCS) decreases. the impedance bandwidth of the proposed third-order Fibonacci and fractal CMTL-loaded array antennas are 250 MHz and 539 MHz more than the two-element CMTL-loaded array antenna, respectively. Finally, this paper presents an improved method to extract the parameters of an equivalent circuit model of the proposed MTM-loaded array antenna. Verification of the equivalent model have been validated utilizing ADS software. The obtained model, in addition to numerically efficient in comparison with the full wave analysis utilizing the moment method, gives a good physical insight to the mutual coupling mechanism of the array antenna.

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EBG Metamaterial Ground Plane for Mitigation of Multipath Signals in GNSS Antenna

Cited by 11 publications

References 12 publications

Elimination of interference and cross talk from a face‐to‐face‐antennas system by a metasurface absorber

Elimination of interference and cross talk from a face‐to‐face‐antennas system by a metasurface absorber

Theory, Design, and Implementation of a New Family of Ultra-Wideband Metamaterial Microstrip Array Antennas Based on Fractal and Fibonacci Geometric Patterns

Ultra-Wideband Metamaterial-Loaded Microstrip Array Antennas using Fibonacci & Fractal Geometric Patterns, Design and Modelling

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