Wide Bandwidth Low Profile Pifa Antenna for Vehicular Sub-6 GHZ 5g and V2x Wireless Systems

Yacoub, Ahmad; Khalifa, Mohamed O.; Aloi, and Daniel N.

doi:10.2528/pierc21010609

Cited by 16 publications

(11 citation statements)

References 12 publications

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“…A tri-polarized antenna was designed to cover 5G and V2X frequencies in [4] with an H-plane gain of 2.05−2.88 dBi in the V2X band; however, it comes with an increased antenna volume with dimensions of 76×76×17mm 3 . Similar drawbacks of large volumes can also be seen in [5][6][7][8][9] with less than zero gain in [7] and [8], whereas a gain of 0.97 dBi was reported in [9]. A mean realized gain of 0.043 dBi was achieved in [10] with a multiband antenna that covers long-term evolution (LTE) and V2X with a big volume of 120 × 70 × 0.1mm 3 .…”

Section: Introductionsupporting

confidence: 62%

Cavity-Backed Slot V2X Antenna for Automotive Applications

2022

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In this work, a cavity-backed slot antenna has been designed to cover vehicle-to-everything (V2X) frequencies (5.85−5.9255.85-5.925 GHz). The antenna is made to be easily integrated in a vehicle windshield or rear mirror. The cavity-backed slot antenna does not require a ground plane to sit on which makes it an ideal model for below horizon performance. Antenna simulation has been done using high-frequency structure simulator (HFSS) and then on-foam and on vehicle’s windshield measurements have been carried out inside an anechoic chamber. The proposed antenna achieved a linear average gain (LAG) above 2.5 dBi in the targeted V2X elevation and azimuth angles with better than 15 dB return loss. The antenna performance has been reported in terms of reflection coefficient, surface current density, radiation pattern, LAG, and efficiency.

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Section: Introductionsupporting

confidence: 62%

Cavity-Backed Slot V2X Antenna for Automotive Applications

2022

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“…e performance requirements are in terms of frequency bands with its corresponding voltage standing wave ratio (VSWR) and the required linear average gain (LAG) in certain elevation angles as well as the polarization. e antenna performance requirements shown in Table 2 are derived from the automotive original equipment manufacturers (OEMs) specifications at the pigtail level [23,30].…”

Section: Antenna Design and Theorymentioning

confidence: 99%

“…Most of the listed antennas covers the cellular bands. Two antennas cover cellular and V2X frequency bands [23,24] with larger size than the proposed antenna, which covers the GNSS higher band too.…”

Section: Gnss Far-field Measurementsmentioning

confidence: 99%

“…Ultrawide band (UWB) antennas based on metamaterial and metasurfaces are suitable candidates for the 5G sub-6 GHz [19][20][21][22]. A PIFA that covers 5G sub-6 GHz with V2X bands is reported in [23], but it is suitable for certain wide types of shark-fins due to its size. UWB antenna for 5G sub-6 GHz and V2X bands also reported in [24], but it is not suitable to be placed inside a shark-fin.…”

Section: Introductionmentioning

confidence: 99%

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A 3-Dimensional Multiband Antenna for Vehicular 5G Sub-6 GHz/GNSS/V2X Applications

Ibrahim

Yacoub

Aloi

2022

International Journal of Antennas and Propagation

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A compact multiband monopole antenna is proposed for vehicular roof top shark-fin applications. The proposed multiband antenna covers 5G sub-6 GHz and LTE bands starting at 617 MHz to 5000 MHz and the higher GNSS band from 1559 to 1606 MHz as well as the V2X band at 5900 MHz. The presented antenna is a three-dimensional monopole antenna with two branches to cover the required bands with compact size to fit inside a roof top shark-fin. The long antenna branch covers the lower cellular frequency band from 617 to 960 MHz, while the short branch covers the higher frequency band from 1559 to 6000 MHz. The presented antenna is mounted on a double-sided FR4 PCB and is feeded through a short cable. The proposed antenna covers multiple frequency bands with compact size (H x L x W) of 58 × 37 × 17 mm3. The antenna is simulated and optimized, and then, a prototype is fabricated, and its radiation characteristics are measured when mounted on one-meter ground plane and on a vehicle’s roof. The maximum measured linear average gain is 3 dBi at 1900 MHz, and the maximum measured efficiency is 88% at 787 MHz. The active GNSS antenna gain is measured using an LNA with good isolation. A good agreement is achieved between the simulated and measured results when compared in terms of voltage standing wave ratio (VSWR), radiation patterns, linear average gain (LAG), and antenna efficiency.

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“…Table 2 shows the values of different geometrical parameters of the antenna. An extensive detailed design guideline for this PIFA, its unique features compared to other elements, and its RF properties and performance are presented in full detail in our previous work in [11]. Two PIFA elements were fabricated and orientated in an opposite way (i.e., mirrored in the yaxis) to have a complementary radiation pattern for each element so that the combined pattern will be omnidirectional.…”

Section: Two-element Pifa-based Mimo System With Spatial Diversitymentioning

confidence: 99%

Compact 2 × 2 Automotive Mimo Antenna Systems for Sub-6 GHZ 5g and V2x Communications

Yacoub¹,

Khalifa²,

Aloi³

2021

PIER B

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Various multiple-input multiple-output (MIMO) antenna systems for automotive applications are presented in this paper using two uniquely designed elements: 1) a low profile wideband Planar Inverted-F antenna (PIFA), and 2) a compact wideband monopole in the sub-6 GHz 5G systems and Vehicle-to-Everything (V2X) communications that cover the frequency range from 617 MHz to 6 GHz. The proposed MIMO systems can be used in a low-profile or shark fin style housing placed on the vehicle's roof. Each MIMO system achieves satisfactory performance across the whole band with suitable physical dimensions. The envelope correlation coefficient (ECC) and diversity gain (DG) are calculated using MATLAB in each MIMO configuration as they represent the two key factors in the MIMO performance. Simulation results are presented along with measured data on a 1-meter rollededge ground plane (GND) and on a vehicle's roof from properly cut metal sheet prototypes. The results are discussed in terms of VSWR, passive isolation between elements, combined radiation patterns, port-efficiencies, ECC, and DG.

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Wide Bandwidth Low Profile Pifa Antenna for Vehicular Sub-6 GHZ 5g and V2x Wireless Systems

Cited by 16 publications

References 12 publications

Cavity-Backed Slot V2X Antenna for Automotive Applications

Cavity-Backed Slot V2X Antenna for Automotive Applications

A 3-Dimensional Multiband Antenna for Vehicular 5G Sub-6 GHz/GNSS/V2X Applications

Compact 2 × 2 Automotive Mimo Antenna Systems for Sub-6 GHZ 5g and V2x Communications

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