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 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:48, 23 August 2018 | | 713 × 436 (32 KB) | Chetvorno | Minor 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 2018 |  | 727 × 446 (25 KB) | Chetvorno | User created page with UploadWizard |
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