Chapter 8: Spacecraft Antennas - Homepages at WMUhomepages.wmich.edu/~johnson/ece5950/PDF/May 22...

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Chapter 8: Spacecraft Antennas Objectives today: Review of Basic Antenna Properties Radiation Beam, Directivity, Gain Aperture Antenna Design Parameters e, η’s Examples Voyager Galileo more… Gaseous Planet Report

Transcript of Chapter 8: Spacecraft Antennas - Homepages at WMUhomepages.wmich.edu/~johnson/ece5950/PDF/May 22...

Page 1: Chapter 8: Spacecraft Antennas - Homepages at WMUhomepages.wmich.edu/~johnson/ece5950/PDF/May 22 ECE5950.pdfChapter 8: Spacecraft Antennas ... FIRST NULLS (BWFN) SIDE LOBES (e left

Chapter 8: Spacecraft Antennas

Objectives today:

Review of Basic Antenna Properties

Radiation

Beam, Directivity, Gain

Aperture Antenna Design Parameters

e, η’s

Examples

Voyager

Galileo

more…

Gaseous Planet Report

Page 2: Chapter 8: Spacecraft Antennas - Homepages at WMUhomepages.wmich.edu/~johnson/ece5950/PDF/May 22 ECE5950.pdfChapter 8: Spacecraft Antennas ... FIRST NULLS (BWFN) SIDE LOBES (e left

Radiation

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Beam Pattern Progression

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Beam Pattern Progression

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Beam Pattern

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Beam Pattern

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Example Calcs

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Example Calcs

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Example Calcs

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Example Calcs

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Example Calcs

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Directivity

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Gain

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Gain

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Aperture Gain

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Aperture Gain

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Aperture Gain

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Aperture Gain

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Aperture Gain

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Aperture Gain

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Aperture Gain

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Antenna Types

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Antenna Types

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Examples: Voyager, Galileo, Cassini, Juno

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Voyager

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Voyager

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Voyager Antenna Needs

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Voyager Antenna Design

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Voyager Antenna Design

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Voyager Antenna Design Specs

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Galileo

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Galileo “Umbrella” Antenna Design

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Galileo “Umbrella” Antenna Design

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Galileo “Umbrella” Antenna Design

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Galileo “Umbrella” Antenna Design

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Galileo Antenna Design Specs

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Cassini

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Cassini Antenna Specs

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Cassini

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Cassini

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Cassini

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Large Gas Planet Report

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Large Gas Planet Report


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SIF #2: 6 - μPILS, Hardware-in-the-loop Synthesis and Analysis of Spacecraft Micropropulsion Systems

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The Friis Transmission Formulausers.cecs.anu.edu.au/~Gerard.Borg/anu/courses/... · The Friis Transmission Formula If we assume that the antennas are aligned for maximum transmission

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Testing General Relativity with Interplanetary Spacecraft · Solar Electric Propulsion Chemical ... (ratio between mantle and planet moment of inertia) ... • Position of Mercury

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AMATEUR RADIO TRAINING Feeders & Antennas v1.101 © essexham.co.uk.

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