A novel low profile high-gain UHF antenna using High-Impedance Surfaces

Mohamed-Hicho, Nora Mohamed; Antonino‐Daviu, Eva; Cabedo-Fabrés, Marta; Ferrando‐Bataller, Miguel

doi:10.1109/eucap.2014.6901912

Cited by 16 publications

(16 citation statements)

References 7 publications

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“…A wider AMC in-phase frequency band with better performance and also a reduced AMC substrate height are obtained by the existence of this air gap. Reducing AMC substrate thickness and accordingly decreasing weight and cost are more evident at low frequencies [3][4][5][6][7][8][9][10][11][12][13][14]. The unit cell simulation is performed in frequency domain, and the reflection phase diagram versus frequency is depicted in Fig.…”

Section: Design and Simulation Of The Unit-cellmentioning

confidence: 99%

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Improved Performance of Double-T Monopole Antenna for 2.4/5.6 GHZ Dual-Band Wlan Operation Using Artificial Magnetic Conductors

Chamani¹,

Jahanbakht²

2017

PIER M

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Abstract-A novel artificial magnetic conductor (AMC) structure for realizing gain enhancement of a double-T monopole antenna for 2.4/5.6 GHz dual-band WLAN operation is presented. First, an initial AMC unit cell is proposed, and a 2 × 5 array of this unit cell is placed behind a double-T monopole antenna as a ground plane, then the AMC structure is modified and improved to achieve better performance. Briefly, more than 4 dB gain improvement and other desirable characteristics including suitable radiation patterns and adequate bandwidths are reported from the simulation results of the final designed structure, and the simulation is performed by CST MWS 2014 in any of the mentioned frequencies. Finally, the validity and applicability of this design are demonstrated through experimental results of the fabricated antenna.

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Section: Design and Simulation Of The Unit-cellmentioning

confidence: 99%

“…However at the same time, it also inverts the phase of the reflected waves which causes destructive interference with waves in other directions and also considerably destroys the bandwidth [3]. Another approach for improving performance of these antennas is to use an AMC structure as a ground plane [4].…”

Section: Introductionmentioning

confidence: 99%

Improved Performance of Double-T Monopole Antenna for 2.4/5.6 GHZ Dual-Band Wlan Operation Using Artificial Magnetic Conductors

Chamani¹,

Jahanbakht²

2017

PIER M

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show abstract

“…FSSs are always designed to reflect, transmit, or absorb electromagnetic wave, and they are applied in the design of antenna radomes, reflector of low-profile antenna, electromagnetic absorbers, and so on [3][4][5][6][7]. The typical FSS structures consist of two-dimensional (2D) periodically arranged resonate units [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Design of a Novel Miniaturized Frequency Selective Surface Based on 2.5‐Dimensional Jerusalem Cross for 5G Applications

Zhao

Zhang

Sun

et al. 2018

Wireless Communications and Mobile Computing

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A compact frequency selective surface (FSS) for 5G applications has been designed based on 2.5-dimensional Jerusalem cross. The proposed element consists of two main parts: the successive segments of the metal traces placed alternately on the two surfaces of the substrate and the vertical vias connecting traces. Compared with previous published two-dimensional miniaturized elements, the transmission curves indicate a significant size reduction (1/26 wavelengths at the resonant frequency) and exhibit good angular and polarization stabilities. Furthermore, a general equivalent circuit model is established to provide direct physical insight into the operating principle of this FSS. A prototype of the proposed FSS has been fabricated and measured, and the results validate this design.

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“…More recently, electromagnetic band‐gap (EBG) structures have been incorporated into the design to improve the performance of patch antennas . As a kind of high impedance surface, the EBGs could be applied to suppress the propagation of the surface wave within the bandgap frequency range .…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, the configurations of the antennas do not need to be redesigned. In previous studies, EBGs were applied as substrates or reflectors of patch antennas to enhance the peak gain of antennas and achieve larger bandwidth. In other works, EBG structures were embedded in 2 closely coupled arrays to obtain a compact profile by eliminating mutual coupling between the antenna elements.…”

Section: Introductionmentioning

confidence: 99%

Design of defective electromagnetic band-gap structures for use in dual-band patch antennas

Zhang

Zhan

et al. 2018

Int J RF Microw Comput Aided Eng

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Generally, the surface wave of an antenna can be suppressed by integrating the electromagnetic band‐gap (EBG) structures. However, to achieve this effect, the EBG cells must be reasonably designed, otherwise it may lead to performance degradation instead. In this article, a dual‐band pinwheel‐shaped slot EBG structure is proposed. When applied to a patch antenna, defects are introduced into 3 rows of the EBG unit cells. The proposed antenna, incorporating EBGs designed with structural defects, to radiate at 4.9 and 5.4 GHz is simulated and tested. The measured results show that the −10‐dB bandwidth of the proposed EBG antenna is extended by 41% and 25.4% at low frequency and high frequency, respectively. In addition, the peak gain of the proposed EBG antenna is increased by 2.44 dB at 4.9 GHz and 2.86 dB at 5.4 GHz with >40% efficiency. When compared with the periodic EBG antenna, this antenna is more effective. Thus, these experimental results show that the performance of the EBG antenna can be improved by interrupting the periodicity of the EBGs structures.

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A novel low profile high-gain UHF antenna using High-Impedance Surfaces

Cited by 16 publications

References 7 publications

Improved Performance of Double-T Monopole Antenna for 2.4/5.6 GHZ Dual-Band Wlan Operation Using Artificial Magnetic Conductors

Improved Performance of Double-T Monopole Antenna for 2.4/5.6 GHZ Dual-Band Wlan Operation Using Artificial Magnetic Conductors

Design of a Novel Miniaturized Frequency Selective Surface Based on 2.5‐Dimensional Jerusalem Cross for 5G Applications

Design of defective electromagnetic band-gap structures for use in dual-band patch antennas

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