Regenerative loop antenna

The regenerative loop antenna can consist of a tuned signal winding on an open X frame with a feed back winding in close proximity. High effective gain is achieved, for example by placing this feedback winding in the drain circuit of a JFET (junction field effect transistor). An antenna of this type employing vacuum tubes was constructed by Vladimir Zworykin in the 1920s.

Sources
  • ARRL publication QEX, January/February 2007, pages 45–46.
gollark: Esobot can, actually, if I remember right?
gollark: They don't have perms.
gollark: I'm *kind of tempted*, I *probably* won't.
gollark: I'm kind of tempted to try and @⁡everyone and hope that *one* person is non-annoyed enough and/or morbidly curious enough to vote gibson.
gollark: See, this does nothing.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.