國立虎尾科技大學 |

Small Antennas For 5G and IoT.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Small Antennas For 5G and IoT./
作者:	Oliveira, Tiago Emanuel da Silva.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
面頁冊數:	120 p.
附註:	Source: Dissertations Abstracts International, Volume: 84-07, Section: A.
Contained By:	Dissertations Abstracts International84-07A.
標題:	User interface. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30221519
ISBN:	9798363576386

Small Antennas For 5G and IoT.
Oliveira, Tiago Emanuel da Silva.

Small Antennas For 5G and IoT. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 120 p.

Source: Dissertations Abstracts International, Volume: 84-07, Section: A.

Thesis (M.E.)--Instituto Politecnico de Leiria (Portugal), 2022.

This item must not be sold to any third party vendors.

In this dissertation, the author’s work on small form factor antennas for 5th Generation of mobile network (5G), Internet of Things (IoT) and Wireless Sensor Network (WSN), is presented. After a dedicated literature review on the topic, several antennas were designed and further optimised utilising a full-wave electromagnetic solver (Computer Simulation Technology (CST)-Microwave Studio (MWS)). Three of the developed antenna designs were prototyped, tested and characterised in laboratory environment and, finally applied to a real-world scenario of a wireless sensor network.In a first iteration, a high-gain wideband parasitic microstrip antenna, for 5G and IoT applications at 26 GHz, is presented. An antenna, composed of miniaturised parasitic patches, has been studied and optimised to operate at 26 GHz, aiming at the 5G New Radio (NR) Frequency Range 2 (FR2) band n258. The proposed antenna uses eight microstrip patches as parasitic elements, in a squared layout, surrounding a central probe-fed patch. The patches operating as parasitic elements are coupled by the magnetic and electric field created by the central active patch.Subsequently, the development of directional antennas, for WSN Base Station (BS), is performed. In particular, two antenna designs have need studied: a microstrip Quasi-Yagi antenna followed by a enhanced lunar waning crescent Quasi-Yagi antenna. The latter, considered as a novel antenna design, follows the planar Quasi- Yagi concept and employs a microstrip dipole as the driven element and, waning crescent shaped reflector and directors, to manipulate the shape of the radiation pattern. The antenna is designed and optimised to operate in the 2.4 GHz ISM band, attending the ease of integration in a multi-sector BS antenna configuration.A small differential slotted microstrip patch antenna to be implemented in a sensor node operating at 2.4 GHz, is also proposed. This particular antenna design takes advantage of slotted resonant elements to reduce its overall size. In particular, specific project requirements, such as: resonating frequency, gain, Half-Power Beam-Width (HPBW) are taken into consideration when dimensioning the antenna. Further studies on the impact of vegetation and fire on the antenna performance are carried out. The simulations were performed using CST-MWS mimicking several application scenarios: involved by soil, vegetation and fire, approximating the model to a real case scenario of a wildfire.Finally, the implementation of a WSN based on WiFi protocol and using LoPy4 transceivers, is proposed. The WSN is composed of a multi-sector base station and several sensor nodes used for environmental monitoring. The antenna previously developed have been used in the BS and sensor nodes implementation. The implementation and performance assessment of such network in real scenarios is presented, and metrics such as area coverage and max range are determined in the field.

ISBN: 9798363576386Subjects--Topical Terms:

1049517
User interface.

Small Antennas For 5G and IoT.
LDR:04089nam a2200373 4500 001 1104694
005 20230619080122.5
006 m o d
007 cr#unu||||||||
008 230907s2022 ||||||||||||||||| ||eng d
020 $a 9798363576386
035 $a (MiAaPQ)AAI30221519
035 $a (MiAaPQ)Portugal1040087248
035 $a AAI30221519
040 $a MiAaPQ $c MiAaPQ
100 1 $a Oliveira, Tiago Emanuel da Silva. $3 1413685
245 1 0 $a Small Antennas For 5G and IoT.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 120 p.
500 $a Source: Dissertations Abstracts International, Volume: 84-07, Section: A.
500 $a Advisor: Caldeirinha, Rafael F. S.;Reis, Joao R.
502 $a Thesis (M.E.)--Instituto Politecnico de Leiria (Portugal), 2022.
506 $a This item must not be sold to any third party vendors.
520 $a In this dissertation, the author’s work on small form factor antennas for 5th Generation of mobile network (5G), Internet of Things (IoT) and Wireless Sensor Network (WSN), is presented. After a dedicated literature review on the topic, several antennas were designed and further optimised utilising a full-wave electromagnetic solver (Computer Simulation Technology (CST)-Microwave Studio (MWS)). Three of the developed antenna designs were prototyped, tested and characterised in laboratory environment and, finally applied to a real-world scenario of a wireless sensor network.In a first iteration, a high-gain wideband parasitic microstrip antenna, for 5G and IoT applications at 26 GHz, is presented. An antenna, composed of miniaturised parasitic patches, has been studied and optimised to operate at 26 GHz, aiming at the 5G New Radio (NR) Frequency Range 2 (FR2) band n258. The proposed antenna uses eight microstrip patches as parasitic elements, in a squared layout, surrounding a central probe-fed patch. The patches operating as parasitic elements are coupled by the magnetic and electric field created by the central active patch.Subsequently, the development of directional antennas, for WSN Base Station (BS), is performed. In particular, two antenna designs have need studied: a microstrip Quasi-Yagi antenna followed by a enhanced lunar waning crescent Quasi-Yagi antenna. The latter, considered as a novel antenna design, follows the planar Quasi- Yagi concept and employs a microstrip dipole as the driven element and, waning crescent shaped reflector and directors, to manipulate the shape of the radiation pattern. The antenna is designed and optimised to operate in the 2.4 GHz ISM band, attending the ease of integration in a multi-sector BS antenna configuration.A small differential slotted microstrip patch antenna to be implemented in a sensor node operating at 2.4 GHz, is also proposed. This particular antenna design takes advantage of slotted resonant elements to reduce its overall size. In particular, specific project requirements, such as: resonating frequency, gain, Half-Power Beam-Width (HPBW) are taken into consideration when dimensioning the antenna. Further studies on the impact of vegetation and fire on the antenna performance are carried out. The simulations were performed using CST-MWS mimicking several application scenarios: involved by soil, vegetation and fire, approximating the model to a real case scenario of a wildfire.Finally, the implementation of a WSN based on WiFi protocol and using LoPy4 transceivers, is proposed. The WSN is composed of a multi-sector base station and several sensor nodes used for environmental monitoring. The antenna previously developed have been used in the BS and sensor nodes implementation. The implementation and performance assessment of such network in real scenarios is presented, and metrics such as area coverage and max range are determined in the field.
590 $a School code: 7009.
650 4 $a User interface. $3 1049517
650 4 $a Computer simulation. $3 560190
650 4 $a Wide area networks. $3 1372842
650 4 $a Network topologies. $3 1413687
650 4 $a Photography. $3 654277
650 4 $a Radiation. $3 673044
650 4 $a Printed circuit boards. $3 1413688
650 4 $a Sensors. $3 1003702
650 4 $a Antennas. $3 1071085
650 4 $a Computer science. $3 573171
650 4 $a Electrical engineering. $3 596380
650 4 $a Engineering. $3 561152
650 4 $a Information technology. $3 559429
650 4 $a Web studies. $3 1148502
690 $a 0984
690 $a 0544
690 $a 0537
690 $a 0489
690 $a 0646
710 2 $a Instituto Politecnico de Leiria (Portugal). $3 1413686
773 0 $t Dissertations Abstracts International $g 84-07A.
790 $a 7009
791 $a M.E.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30221519