File:J-pole antenna diagram.svg

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Original file ‎(SVG file, nominally 148 × 406 pixels, file size: 11 KB)

Captions

Captions

Diagram of a J-pole antenna

Summary[edit]

Description
English: Diagram of a J-pole antenna, a vertical end-fed half-wave omnidirectional transmitting antenna used in the shortwave frequency bands. It consists of a vertical element a half wavelength () long, fed in series with a quarter wavelength () transmission line stub, with the coaxial cable feedline (F) from the transmitter attached along the stub. The stub serves as an impedance matching device to transform the high feedpoint impedance of the half-wave antenna down to match the impedance of the coaxial cable.
Date
Source Own work
Author Chetvorno

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Date/TimeThumbnailDimensionsUserComment
current04:37, 15 May 2021Thumbnail for version as of 04:37, 15 May 2021148 × 406 (11 KB)Chetvorno (talk | contribs)Tweaked size of coax
04:01, 15 May 2021Thumbnail for version as of 04:01, 15 May 2021151 × 409 (11 KB)Chetvorno (talk | contribs)Uploaded own work with UploadWizard

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