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Small Antennas For 5G and IoT.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Small Antennas For 5G and IoT./
作者:	Oliveira, Tiago Emanuel da Silva.
面頁冊數:	1 online resource (120 pages)
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=30221519click for full text (PQDT)
ISBN:	9798363576386

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

Small Antennas For 5G and IoT. - 1 online resource (120 pages)

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

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

Includes bibliographical references

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.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798363576386Subjects--Topical Terms:

3681528
User interface.
Index Terms--Genre/Form:

542853
Electronic books.

Small Antennas For 5G and IoT.
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100 1 $a Oliveira, Tiago Emanuel da Silva. $3 3697329
245 1 0 $a Small Antennas For 5G and IoT.
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300 $a 1 online resource (120 pages)
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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.
504 $a Includes bibliographical references
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.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a User interface. $3 3681528
650 4 $a Computer simulation. $3 525602
650 4 $a Wide area networks. $3 3683705
650 4 $a Network topologies. $3 3689896
650 4 $a Photography. $3 518339
650 4 $a Radiation. $3 673904
650 4 $a Printed circuit boards. $3 3560292
650 4 $a Sensors. $3 3549539
650 4 $a Antennas. $3 3681648
650 4 $a Computer science. $3 523869
650 4 $a Electrical engineering. $3 649834
650 4 $a Engineering. $3 586835
650 4 $a Information technology. $3 532993
650 4 $a Web studies. $3 2122754
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0984
690 $a 0544
690 $a 0537
690 $a 0489
690 $a 0646
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Instituto Politecnico de Leiria (Portugal). $3 3681527
773 0 $t Dissertations Abstracts International $g 84-07A.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30221519 $z click for full text (PQDT)