A Microstrip Quasi-Yagi Antenna based on Optimised Waning Crescent Elements for WSN

Oliveira, Tiago E.; Reis, João R.; Caldeirinha, Rafael F. S.

doi:10.23919/at-ap-rasc54737.2022.9814209

Cited by 1 publication

(5 citation statements)

References 11 publications

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“…To compose the multi-sector BS antenna architecture proposed in this paper ( Figure 1 b), the microstrip Quasi-Yagi antenna developed by the authors in [ 20 ] has been considered. The detailed layout of the Quasi-Yagi antenna and a photography of a produced prototype are depicted Figure 2 .…”

Section: Multi-sector Base Station Antennamentioning

confidence: 99%

“…According to the simulations performed in a full-wave electromagnetic solver (CST MWS), the final and optimized version of the antenna presents a realized gain of 9.4 dBi at 2.45 GHz, with a bandwidth of 450 MHz, a front-to-back ratio of 20.2 dB, and a HPBW of

and

in the azimuth and elevation planes, respectively, for the optimized dimensions of (in mm):

, and director dimensions of:

and

. More details about antenna design and optimization (including parametric simulations) can be found in [ 20 ].…”

Section: Multi-sector Base Station Antennamentioning

confidence: 99%

“…To further validate the model, the proposed microstrip Quai-Yagi antenna has been fabricated and experimentally characterized in laboratory environment using the experimental setup detailed in Section 3 . In particular, antenna matching (

-parameter) and radiation patterns in the two main antenna planes (i.e., azimuth and elevation) have been measured inside an anechoic chamber and compared to the simulation results previously presented in [ 20 ]. From the

-parameter, depicted in Figure 3 a, it is possible to observe that the measured results are in good agreement with the simulated ones, with the resonance peak present at 2.39 GHz.…”

Section: Multi-sector Base Station Antennamentioning

confidence: 99%

“…It is divided into several parts: firstly, it covers the fabrication and characterization of a multi-sector base station antenna composed of six microstrip waning crescent Quasi-Yagi elements. The microstrip Quasi-Yagi antenna elements, which have been already studied and optimized by the authors in [ 20 ], are experimentally characterized in a controlled laboratory environment, i.e., inside an anechoic chamber. Measurement results obtained on a physical prototype are presented and analyzed against the simulated ones of [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…The microstrip Quasi-Yagi antenna elements, which have been already studied and optimized by the authors in [ 20 ], are experimentally characterized in a controlled laboratory environment, i.e., inside an anechoic chamber. Measurement results obtained on a physical prototype are presented and analyzed against the simulated ones of [ 20 ]. Subsequently, the impact of elements spacing on radiation pattern when disposing several Quasi-Yagi elements in a circular fashion ( Figure 1 b) is also evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Implementation of a WSN for Environmental Monitoring: From the Base Station to the Small Sensor Node

Oliveira

Reis²,

Caldeirinha³

2022

Sensors

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In this paper, the implementation of a Wireless Sensor Network (WSN) for environmental monitoring (EM) is presented. It includes the design, implementation and experimental characterization of a multi-sector base station (BS) antenna composed of several microstrip Quasi-Yagi elements and the implementation and experimental characterization of a reduced form factor antenna for the sensor nodes (SN). Subsequently, it reports the implementation of a WSN based on Lopy4 transceivers, using the developed BS and SN antennas. Finally, experimental results obtained on the field to evaluate the performance of the network in terms of maximum coverage distance and coverage area are presented. According to the field tests, the connectivity between the sensor nodes and the developed WSN base station is confirmed at distances above 3.5 km and for all the antenna sectors of the multi-sector BS attaining a 360∘ of field of view.

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Section: Multi-sector Base Station Antennamentioning

confidence: 99%

and

in the azimuth and elevation planes, respectively, for the optimized dimensions of (in mm):

, and director dimensions of:

and

. More details about antenna design and optimization (including parametric simulations) can be found in [ 20 ].…”

Section: Multi-sector Base Station Antennamentioning

confidence: 99%

-parameter, depicted in Figure 3 a, it is possible to observe that the measured results are in good agreement with the simulated ones, with the resonance peak present at 2.39 GHz.…”

Section: Multi-sector Base Station Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations