Antenna Design for iRoad Markers using PEEC Modelling
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
With the enormous popularity of the road transport nowadays both of passengers andgoods, and with the previsions of a continuous growing in the future the industry and thepublic institutions are making a considerable eort to apply the last technologies withinthe IT eld to improve its performance and safety and reduce the ecological footprintto minimums. These ambitious aims require both to increase the technological level ofthe vehicles, which has evolved considerably in the last years, and to introduce the newtechnologies in the vial infrastructures, point which is still commercially pendant in despiteof all the research projects that are being conducted worldwide.One of these projects, named iRoad, is being conducted by a Swedish consortium ofcompanies and universities and consists in the implementation of the distributed sensornetwork technology to the roads in order to collect traffic data allowing to implementlater several functionalities related with the performance and safety of the transportationsystem. This sensor-actuator distributed network would use, regarding the inner inter-communication system, one of the many wireless radio technologies in UHF frequencyband. Since in the original design of the sensor network the nodes are placed in lowprole patches directly above the road shoulders surface, the object of this thesis is todeterminate how the classic low prole antenna designs would perform, considering theparticularities of this network conguration, and specially, the presence of an interfacebetween two mediums so electromagnetically dierent such as the air and the real ground.To approach this scenario rst the problem has been modelled and simulated by usingthe Partial Elements Equivalent Circuit numeric technique. The post-processing of thedata extracted allows to obtain some preliminary results which are valuable to orientproperly the second stage, which consists in the milling of some prototypes which illustratethe issue and their measuring and evaluation in near operating conditions.From this analysis process the results extracted according to the thesis aims are anoverview of the performance of each simple antenna design both in terms of spatial per-formance and electrical performance and also a comparison between the dierent antennadesigns based on the results of the simulations conducted using the PEEC method, whichhave shown the dipole as the design with best performance under the considered condi-tions.
Place, publisher, year, edition, pages
2011. , 108 p.
Technology, iRoad, PEEC, antenna
IdentifiersURN: urn:nbn:se:ltu:diva-52480Local ID: 99d376f8-e135-4b41-84fc-a8227a93af68OAI: oai:DiVA.org:ltu-52480DiVA: diva2:1025850
Subject / course
Student thesis, at least 30 credits
Computer Science and Engineering, master's level
Validerat; 20111020 (anonymous)2016-10-042016-10-04Bibliographically approved