Low-Profile Automotive Antenna Systems for MIMO 5G and L1/L5 GNSS Communications

Yacoub, Ahmad; Aloi, Daniel N.

doi:10.23919/eucap53622.2022.9769623

Cited by 10 publications

(6 citation statements)

References 9 publications

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“…[8] use a single structure but employs a monopole, which does not align with GNSS requirements due to its omnidirectional, linear polarisation and low gain at the zenith. Both [4, 5] use two separate antennas for GNSS and 5G cellular, offering good performance but with nearly double the size of our proposed design. Meanwhile, The authors in Refs.…”

Section: Resultsmentioning

confidence: 99%

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Design of a multi‐function global navigation satellite system and 5G cellular antenna structure for automotive applications using characteristic mode analysis

Abdul‐Rahman,

Aloi

2023

IET Microwaves Antenna & Prop

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This paper illustrates a single antenna structure that simultaneously satisfies the antenna requirement for 5G cellular and global navigation satellite systems (GNSS). The antenna has a linearly polarised omnidirectional radiation for the newly defined 5G sub‐6 GHz cellular bands in the 617–5000 MHz frequency range. In contrast, a right‐hand circular polarisation (RHCP) with a hemispherical radiation pattern at the GNSS L1 has a frequency range of 1559–1606 MHz. This multi‐function antenna would provide a simplified product design and better space utilisation, particularly suitable for flat antenna modules and automotive. The primary concept involves employing a planar inverted F antenna structure to generate radiation modes for cellular bands and incorporate U‐slot on the top plate to generate the GNSS radiation modes. The design methodology utilises the characteristic mode analysis tool to tune the desired radiation characteristic mode at the intended frequency range for each function. The antenna was fabricated, and the performance was evaluated on a 1‐m ground plane. The GNSS RHCP gain measures 5 dBc at boresight, with an axial ratio below 2 dB across the L1 bands, while the cellular gain maintains an excellent return loss and omnidirectional radiation pattern performance across the cellular bands.

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Section: Resultsmentioning

confidence: 99%

“…[4] or lined side by side as in Ref. [5]; other lower-profile integration solutions, as discussed in Ref. [6,7] but only cover narrow ranges for the cellular bands.…”

Section: Introductionmentioning

confidence: 99%

Design of a multi‐function global navigation satellite system and 5G cellular antenna structure for automotive applications using characteristic mode analysis

Abdul‐Rahman,

Aloi

2023

IET Microwaves Antenna & Prop

Self Cite

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“…Multiple-Input Multiple-Output (MIMO) antenna systems must be created in order to meet the enhanced needs for wider channel bandwidth and higher modulation order for Wi-Fi 7 technology. MIMO systems increase the overall throughput without increasing the operating frequency channels or transmit power since it uses multiple antennas on both the transmitter and receiver which also provides diversity that reduces multipath effect [9]. It is also essential for Wi-Fi 7 applications to have MIMO antenna systems with better passive isolation between antennas (low envelope correlation coefficient).…”

Section: Introductionmentioning

confidence: 99%

Innovative Loaded Low-profile Tri-band MIMO Antenna System for Wi-Fi 7 Technology

Yacoub,

Aloi

2023

PIER M

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A distinctive low-profile 2 × 2 MIMO antenna system for Wi-Fi 7 applications is presented in this paper that is compact, easily manufactured and with excellent performance. Because of its compact size and good RF performance, the design can be placed in hidden locations for various applications such as the automotive field in the front side mirrors or front dashboard, and consumer products in laptops and internet wireless routers. The proposed design can cover the entire tri-bands of Wi-Fi 7 (2400-2495 MHz, 5150-5895 MHz, 5945-7125 MHz) using a loaded low-profile Planar Inverted-F Antenna (PIFA) with distinct dimensions and slots across its geometry. The element design and the MIMO system is simulated and a properly made prototype was fabricated to present the results in terms of reflection coefficients, current distribution, combined radiation patterns, passive isolation, ports efficiencies, and Envelope Correlation Coefficient (ECC). The design shows relatively good RF properties across the entire three bands, hence making it an attractive solution to be used for Wi-Fi 7 technology to satisfy the needs of larger omnidirectional coverage area, wider channel bandwidth, and better transmission rates with low interference.

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“…Monopoles and planar inverted-F type of antennas (PIFAs) are the most widely utilized LTE antenna types. However, there are a limited number of LTE monopole antennas reported in the literature that can effectively cover the 5G sub-6 GHz frequency band [14][15][16]. These monopole antennas only occupy 5G sub-6 GHz frequencies and do not cover other bands.…”

Section: Introductionmentioning

confidence: 99%

Integration of LTE and GNSS Antenna for Multiband Performance in Vehicular Application

Nikam,

Patil

2023

PIER C

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Low-Profile Automotive Antenna Systems for MIMO 5G and L1/L5 GNSS Communications

Cited by 10 publications

References 9 publications

Design of a multi‐function global navigation satellite system and 5G cellular antenna structure for automotive applications using characteristic mode analysis

Design of a multi‐function global navigation satellite system and 5G cellular antenna structure for automotive applications using characteristic mode analysis

Innovative Loaded Low-profile Tri-band MIMO Antenna System for Wi-Fi 7 Technology

Integration of LTE and GNSS Antenna for Multiband Performance in Vehicular Application

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