Linear nonuniform antenna array of planar elements fed by a dielectric waveguide

Kong, Linghui; Yan, Sen; Volskiy, Vladimir; Vandenbosch, Guy A. E.

doi:10.1002/mop.31063

Cited by 3 publications

(4 citation statements)

References 13 publications

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“…The Bloch-Floquet theorem, used to characterize the performance of EBG structures, can indicate the wave propagation properties in an infinite media that comprises periodic elements [24]. According to the theory, a unit cell with periodic boundary conditions can fully calculate the wave propagation characteristics in a periodic structure [25].…”

Section: B Ebg Structurementioning

confidence: 99%

“…For reference, the limitations of these published works are highlighted in Table 1. Indeed, until now, no published work has demonstrated the optimization of all performance parameters for the entire 5G bandwidth (24)(25)(26)(27)(28)(29)(30). This work introduces different design techniques to optimize the phased array from all aspects simultaneously for the entire bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Wideband and Wide Beam Scanning Dual-Polarized Phased Array Antenna-in-Package Design for 5G Applications

Zhang,

Shamim

2024

IEEE Open J. Antennas Propag.

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Millimeter (mmWave) 5G phased arrays require multiple simultaneous features for reliable high data-rate communication. However, it is challenging to simultaneously achieve a true wideband operation for all parameters due to mutual coupling and grating lobe issues. A 5 × 5-stacked patch rectangular phased array was designed and fabricated in a 15-layer low-temperature co-firing ceramic (LTCC) substrate. This work utilized multiple design strategies, such as employing stacked patch topology, electromagnetic band gap (EBG) structures, and the rotation of elements to obtain a true wideband performance. The single element of the phased array was a dual linear polarized stacked patch antenna with notched corners. Compared to a standard patch antenna, the bandwidth was enhanced by 15.3%. The undesired mutual coupling between elements was minimized by rotating nearby elements and introducing EBG structures between the adjacent elements. A wideband beamforming network composed of a Rotman lens and a 5-way Wilkinson power divider (WPD) was also designed and fabricated. The proposed phased array achieved 6 GHz of bandwidth, covering 24 to 30 GHz and achieving a maximum gain of 17.5 dBi and a wide beam-scanning range from -50 to +50 degrees. This work also introduced a figure of merit (FoM) based on all critical performance parameters for objective comparison with state-of-the-art designs. The proposed design achieved the highest FoM (0.451), whereas most similar 5G phased array designs achieved much lower FoM value.INDEX TERMS phased array; low-temperature co-firing ceramic; beam scanning; millimeter 5G

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Section: B Ebg Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wideband and Wide Beam Scanning Dual-Polarized Phased Array Antenna-in-Package Design for 5G Applications

Zhang,

Shamim

2024

IEEE Open J. Antennas Propag.

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“…e first LWA was proposed in the 1940s in the form of a slotted rectangular waveguide [14]. Recent developments are focusing on planar LWAs to improve the scanning range and overcome the 'stop band' problem in the broadside direction [15,16].…”

Section: Introductionmentioning

confidence: 99%

Leaky Wave Array in Full Planar Substrate with EBG-Based Wave Guiding Channel

Kong

Yan

Volskiy

et al. 2021

International Journal of Antennas and Propagation

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A new type of wave guiding structure is proposed is this paper. The guiding channel is developed on the full planar dielectric substrate and aligned with electromagnetic bandgap (EBG) units. Since the bandgap of these mushroom-like units is calculated with a coverage of the channel working band, these units are of great importance on ensuring the transmission efficiency and eliminating the coupling effect between channels. Then, this wave guiding structure is extended to the design of a six-element leaky wave antenna array with a complete size of 25.6 mm × 80.6 mm, which is working at Ku band from 12.0 GHz to 12.8 GHz and achieving a bandwidth of about 0.8 GHz, a gain of 11.36 dBi, and an efficiency of ca. 86.7% at 12.0 GHz. Within the working frequency band, this antenna topology achieves a frequency-dependent beam scanning in the forward directions, and it offers a potential for radar application on road speed detecting with low costs.

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“…Very recently, a conceptually new, low‐cost antenna topology with compact and low profile was proposed for in‐house X‐band radar and localization purposes . In this article, the remaining huge disadvantage of this topology, the fact that it is not able to provide a broadside beam, which is highly desirable for communication purposes, is solved.…”

Section: Introductionmentioning

confidence: 99%

Directive planar antenna array fed by dielectric waveguide for WiFi applications

Kong

Yan

Vandenbosch

2018

Micro & Optical Tech Letters

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A 1‐D nonuniform antenna array fed by a dielectric waveguide operating at 5.7 GHz is proposed. Based on the electromagnetic coupling between the inside travelling wave and the antenna elements, a broadside directive radiation pattern is obtained. The presence of a ground plane allows wall mounting, which is advantageous in many wireless fidelity applications. A prototype was built and measured to prove the concept. The measured −6 dB bandwidth is ca. 150 MHz and the measured realized gain is 9.58 dBi in the broadside direction. This is a very reasonable performance for an extremely simple structure, without feeding network, which is easily manufactured with cheap mass‐production Printed Circuit Board technology.

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Linear nonuniform antenna array of planar elements fed by a dielectric waveguide

Cited by 3 publications

References 13 publications

Wideband and Wide Beam Scanning Dual-Polarized Phased Array Antenna-in-Package Design for 5G Applications

Wideband and Wide Beam Scanning Dual-Polarized Phased Array Antenna-in-Package Design for 5G Applications

Leaky Wave Array in Full Planar Substrate with EBG-Based Wave Guiding Channel

Directive planar antenna array fed by dielectric waveguide for WiFi applications

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