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Design of an antenna for automotive communication in FM band
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Antennas used for FM transmission in radio stations are too large and to fit in the same for vehicular communication is inconceivable, considering the dimensional aspects. The product “EVAM System” is used for automotive communication in emergency vehicles. This product uses FM band for transmission of traffic information to the surrounding vehicle. The FM antennas normally installed on the vehicles are used for reception. The radiation efficiency of these antennas is too low and VSWR is too large. Thus, the FM reception antennas reflect the power at large scale, damaging the product as a result. The main objective of this thesis is to design a low-profile antenna, which can be mounted on the emergency vehicle as demanded by H&E Solutions AB. In addition to the dimensional requirements, the antenna should also satisfy the specified performance characteristics. These specifications are explained in detail and a design that best suits the product is developed considering both dimensional and performance characteristics.

Abstract [sv]

Antennerna som används för FM-överföring i radiostationer är för stora och att passa in i detsamma för fordonskommunikation är otänkbart med tanke på dimensionella aspekter. Produkten "EVAM System" används för bil kommunikation i nödfordon. Denna produkt använder FM-band för överföring av trafikinformation till omgivande fordon. FM-antennerna som normalt installeras på fordonet används för mottagning. Strålningseffektiviteten hos dessa antenner är för låg och VSWR är för stor. FM-mottagningsantennen reflekterar således kraften i stor skala vilket skadar produkten som ett resultat. Huvudsyftet med denna avhandling är att utforma en lågprofilantenn som kan monteras på nödfordonet enligt kravet från H & E Solutions AB. Förutom de dimensionella kraven ska antennen också uppfylla de angivna prestandaegenskaperna. Dessa specifikationer förklaras i detalj och en design som bäst passar produkten är utvecklad med tanke på både dimensions- och prestandaegenskaper.

Place, publisher, year, edition, pages
2017. , 52 p.
Series
TRITA-EE, ISSN 1653-5146 ; 2017:155
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-217297OAI: oai:DiVA.org:kth-217297DiVA: diva2:1155116
External cooperation
H & E Solutions AB
Educational program
Master of Science - Electrophysics
Available from: 2017-11-07 Created: 2017-11-07 Last updated: 2017-11-07Bibliographically approved

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CiteExportLink to record
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  • apa
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