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File:Antenna and resistor in cavity.svg

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Summary

Description
English: Diagram of a thought experiment used to derive the effective aperture of a isotropic antenna, used to derive the expression for antenna gain. It consists of an ideal lossless isotropic antenna A in a thermal cavity at temperature T, connected through a lossless transmission line and a narrowband filter F to a resistor R in another cavity. Both cavities are at the same temperature and so are in thermodynamic equilibrium
Date
Source Own work
Author Chetvorno

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Captions

Diagram of a resistor and an isotropic antenna in a thermal cavity

21 August 2018

image/svg+xml

a82960984095f437d33238f0c64ad30bf03e9148

32,400 byte

436 pixel

713 pixel

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Date/TimeThumbnailDimensionsUserComment
current00:48, 23 August 2018Thumbnail for version as of 00:48, 23 August 2018713 × 436 (32 KB)ChetvornoMinor alterations to diagram: changed font to Times New Roman to more clearly distinguish Greek and Roman characters, altered red arrows indicating equilibrium between antenna, resistor and cavities
22:47, 21 August 2018Thumbnail for version as of 22:47, 21 August 2018727 × 446 (25 KB)ChetvornoUser created page with UploadWizard

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