2022 IEEE Symposium on Wireless Technology & Applications (ISWTA)最新文献

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Orbital Angular Momentum Vortex Waves Generation Using Textile Antenna Array for 5G Wearable Applications 基于纺织天线阵列的轨道角动量涡波产生技术在5G可穿戴应用中的应用

2022 IEEE Symposium on Wireless Technology & Applications (ISWTA) Pub Date : 2022-08-17 DOI: 10.1109/ISWTA55313.2022.9942785

Shehab Khan Noor, Arif Mawardi Ismail, M. N. Mohd Yasin, Mohamed Nasrun Osman, N. Ramli

{"title":"Orbital Angular Momentum Vortex Waves Generation Using Textile Antenna Array for 5G Wearable Applications","authors":"Shehab Khan Noor, Arif Mawardi Ismail, M. N. Mohd Yasin, Mohamed Nasrun Osman, N. Ramli","doi":"10.1109/ISWTA55313.2022.9942785","DOIUrl":"https://doi.org/10.1109/ISWTA55313.2022.9942785","url":null,"abstract":"The development of wireless systems for fifth-generation technology (5G) has enabled the use of textile antennas for a wide range of applications, and it has now become one of the world's most in-demand technology. As the number of wireless devices and users increase, operators would need higher channel capacity to deliver better possible service to their customers. This paper presents the generation of Orbital Angular Momentum (OAM) vortex waves with mode 1 using a wearable textile antenna. OAM introduces a new scheme called Mode Domain Multiple Access (MDMA). OAM mode is an orthogonal mode with each mode carrying individual signals. Therefore, multiple signals can be sent using the same carrier frequency without additional resources. This allows the channel capacity and spectrum efficiency to be enhanced. The proposed antenna array comprises rectangular microstrip patch elements with an inset fed technique. Felt textile fabric was used as an antenna substrate. A carefully planned feeding phase shift network was used to excite the elements by supplying similar output energy at output ports with the required phase shift value. The generated OAM waves were confirmed by measuring the null in the boresight direction of their 2D radiation patterns as well as simulated phase distribution, intensity distribution and mode purity. The antenna covered portions of the 5G n77 band with a bandwidth of 81.7 MHz and an overall gain of 2.9 dBi. This is, to the best of our knowledge, the first work on generating OAM waves using a flexible textile material.","PeriodicalId":293957,"journal":{"name":"2022 IEEE Symposium on Wireless Technology & Applications (ISWTA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124363587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Low-Cost, Long-Range Unmanned Aerial Vehicle (UAV) Data Logger Using Long Range (LoRa) Module 使用远程(LoRa)模块的低成本、远程无人机(UAV)数据记录器

2022 IEEE Symposium on Wireless Technology & Applications (ISWTA) Pub Date : 2022-08-17 DOI: 10.1109/ISWTA55313.2022.9942751

Muhammad Eddie Irfan bin Edi, Nur Emileen Abd Rashid, N. Ismail, Korhan Cengiz

{"title":"Low-Cost, Long-Range Unmanned Aerial Vehicle (UAV) Data Logger Using Long Range (LoRa) Module","authors":"Muhammad Eddie Irfan bin Edi, Nur Emileen Abd Rashid, N. Ismail, Korhan Cengiz","doi":"10.1109/ISWTA55313.2022.9942751","DOIUrl":"https://doi.org/10.1109/ISWTA55313.2022.9942751","url":null,"abstract":"Unmanned aerial vehicles (UAVs), also known as drones, are in high demand due to their suitability for observation and surveillance. It also has been utilized for both recreational and commercial purposes. Unfortunately, as with the term \"unmanned\", the UAV operator cannot determine the state of the drone when it is in the air. One of the crucial parts is to recover the UAV’s mission data if something happens that prevents it from continuing to operate. Therefore, it is necessary to develop a low-cost, long-range data logger payload that can transmit the measured data in real-time. Additionally, it is essential to integrate the aforementioned functions into a unified system. In this work, an Arduino Uno, Arduino Nano, GY-86 10DOF IMU, micro-SD card converter, LoRa SX1278, and a 7.4V lithium-ion battery are used to develop the data logger system. The system utilized the long-range (LoRa) module by using Arduino IDE software and Node-RED as an internet of things (IoT) platform. The MJX Bug 16 Pro UAV device is used to mount the system and measure the altitude and atmospheric pressure of the flying device. The data logger payload is expected to provide precise live data on altitude and air pressure from the UAV to the operator’s base station.","PeriodicalId":293957,"journal":{"name":"2022 IEEE Symposium on Wireless Technology & Applications (ISWTA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126926688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

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