A single-layer compact four-element quasi-Yagi MIMO antenna design for super-wideband response

Chaudhari, Amar D.; Ray, K. P.

doi:10.1016/j.aeue.2021.153878

Cited by 8 publications

(7 citation statements)

References 30 publications

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“…Finally, comparing this proposal to other works already published, the following results are presented: From Gurjar and colleagues 14–18 and this work, the number of elements is: 2, 2, 2, 4, 4, and 4, respectively; the size of each array is: 720, 1800, 2916, ~12,100, 1024, and 7200 mm 2 each layer. The frequency band is in GHz: 3–12.6; 3.5, 4.5, and 7.5; 2.83–13.23; 1.37–16; 3.2–5.2, and 5–20 GHz.…”

Section: Simulated and Measured Mimo Metricsmentioning

confidence: 59%

Four‐port MIMO Vivaldi antenna for access points

Lilian,

José,

Hildeberto

et al. 2024

Micro & Optical Tech Letters

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In this article, a 4‐port multiple input, multiple output (MIMO) antenna array is presented, based on a Vivaldi design for nonplanar applications like access points above 6 GHz. The antenna is configured with four Vivaldi antennas arranged orthogonally, one to each other, to increase the electromagnetic isolation among elements. The Vivaldi element is fed with a microstrip with an integrated balun in only one arm, and each arm is set in an antipodal position to the other, giving an easy‐to‐design and build prototype, with no complicated feeding techniques. Each antenna plane has dimensions of 90 × 40 mm2. The array presents a bandwidth from 5.3 GHz to beyond 20 GHz, with electromagnetic isolation above 20 dB, an envelope correlation coefficient below 0.001 for the entire bandwidth, giving a diversity gain around 20 dB, and a total active reflection coefficient below −10 dB from 7 to 20 dB, fulfilling the metrics for MIMO applications.

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Section: Simulated and Measured Mimo Metricsmentioning

confidence: 59%

Four‐port MIMO Vivaldi antenna for access points

Lilian,

José,

Hildeberto

et al. 2024

Micro & Optical Tech Letters

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“…The performances of the Yagi-Uda array are compared in Table 1 with the published reports. 8,11,21,22 The array of microstrip Yagi-Uda antenna, proposed in this paper for 4.5 GHz band for the application to FWA in 5G wireless communication has wide bandwidth, high gain, and less design complexity.…”

Section: Measured Resultsmentioning

confidence: 99%

“…The performances of the Yagi‐Uda array are compared in Table 1 with the published reports 8,11,21,22 …”

Section: Measured Resultsmentioning

confidence: 99%

Design of microstrip Yagi‐Uda antenna array for 4.5 GHz band fixed wireless access in 5G

Roy

2022

Micro & Optical Tech Letters

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Fixed wireless is a part of wireless local area network (WLAN) infrastructure which connects two fixed locations, like, tower to building or building to building by radio link or by other wireless link. In fifth generation (5G) for fixed wireless access (FWA) one of the attractive bands is 4.5 GHz band. The designs of a microstrip Yagi‐Uda antenna and a 4‐element Yagi‐Uda array for the application to 5G FWA at 4.5 GHz band are reported here. The experimentally investigated impedance and radiation properties of Yagi‐Uda antenna and a 4‐element array of it are reported. The antenna has 10 dB return loss bandwidth of 580 MHz which is 12.8% of the centre frequency and the array has bandwidth of 520 MHz which is 11.7% at the centre frequency. The Yagi‐Uda antenna array beam is tilted by 46° from the broadside direction. The measured maximum gains of the Yagi‐Uda antenna and the 4‐element array are 7.2 and 16.5 dBi, respectively. The cross‐polarization levels lower by about 20 dB than the main lobes are observed. The Yagi‐Uda array has high front‐to‐back ratio of better than 25 dB. The measured results are compared with the simulated results.

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“…For the application of quasi-Yagi antenna in MIMO and millimeterwave system, the features of simpler structures and easier integral feeding are required. Chaudhari and Ray proposed a compact 3-elements quasi-Yagi antenna with a bowtiedriven element and four microstrips line-fed [9]. Rehman et al proposed a novel high gain two-port planar antenna, which adopted the inverse concentric Yagi director around the rectangular minipatch with a stepped impedance [10].…”

Section: Introductionmentioning

confidence: 99%

Deep Learning for Inverse Design of Broadband Quasi-Yagi Antenna

Zhou

Mei

et al. 2023

International Journal of RF and Microwave Computer-Aided Engine

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Deep learning (DL) approaches have been increasingly adopted to design antenna autonomously. For obtaining geometry of the broadband quasi-Yagi antenna from its physic response images directly, we propose an inverse design approach based on the optimized bidirectional symmetry GoogLeNet, which can extract the required bandwidth information to redesign the geometric parameters of antenna without changing its physical structure. It demonstrates that the bandwidth of a reference quasi-Yagi antenna is improved from 0.6 GHz to 1.15 GHz through the proposed inverse design DL approach, and the measured bandwidth value of this redesigned quasi-Yagi antenna achieves 1.16 GHz, which is improved 93% actually. The numerical and measured results indicate that the proposed DL approach could significantly improve the performance of the existed quasi-Yagi antenna and present a new attempt to apply the image processing techniques in resolving physical problem.

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A single-layer compact four-element quasi-Yagi MIMO antenna design for super-wideband response

Cited by 8 publications

References 30 publications

Four‐port MIMO Vivaldi antenna for access points

Four‐port MIMO Vivaldi antenna for access points

Design of microstrip Yagi‐Uda antenna array for 4.5 GHz band fixed wireless access in 5G

Deep Learning for Inverse Design of Broadband Quasi-Yagi Antenna

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