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Development of a Compact Risley-Prism for Additive Manufacturing
KTH, School of Electrical Engineering and Computer Science (EECS).
KTH, School of Electrical Engineering and Computer Science (EECS).
2025 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Satellites have the potential to fundamentally change how internet is provided around the world. Requiring no infrastructure spending on the ground, it can connect people to the internet even in remote locations. To achieve this, satellites must become cheaper to manufacture and send into low earth orbit. Recently the use of Risley prisms in antenna systems has gained attention due to its simplicity, light weight and ease of manufacture. This project aims to further improve the compactness of the Risley prism. To achieve this, a design was developed with materials and dimensions to be satisfactory with industry standards. The project highlighted the solution as viable in simulation, but more testing and more accurate manufacturing must be done to prove its viability for real-world application.

Abstract [sv]

Satelliter har möjligheten att fundamentalt ändra hur internet levereras runtom i världen. Utan behov av markinfrastruktur kan de leverera internet även till avlägsna områden. För att lyckas måste satelliter kosta mindre att producera och skicka upp i låg omloppsbana. Det här projektet ämnar optimera en billig lättviktslösning på hur man kan styra antenner med hjälp av Risleyprisman. Med en Risleyprisma kan man använda dielektriskt material som kan produceras i stor skala med additiv tillverkning. Dessa material väger lite och har en liten profil på satelliten. En design av en Risleyprisma togs fram med syfte att få resultat som håller sig inom ramarna för industristandarder. Projektet visade att lösningsmetoden är möjlig i simulering, men fler tester och mer precis tillverkning krävs för att bevisa nyttan hos lösningen i verklig applikation.

Place, publisher, year, edition, pages
2025. , p. 261-268
Keywords [en]
Risley Prism, Beam steering, Additive manufacturing, Satellites, Internet
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-376028OAI: oai:DiVA.org:kth-376028DiVA, id: diva2:2033670
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Kandidatexamensarbete i Elektroteknik 2025, EECS, KTHAvailable from: 2026-01-29 Created: 2026-01-29 Last updated: 2026-02-06

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  • apa
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  • de-DE
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  • en-US
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