How to design and build a 70cm DIY loop antenna

by kc4mcq | Posted on


Thanks to "electronics unmessed" for this exceptionally well done tutorial on the theory, design, construction, testing, and use of a 70cm band loop antenna.

The finished product is lightweight, portable, and easily concealed for radio amateurs living in deed-restricted housing.

If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=Findn5bihWE.

Here are some comments from "electronics unmessed":

This video is about building a loop antenna for the 70 centimeters amateur radio band. What I particularly like about this antenna is that it implements a bandpass and a powerful antenna at the same time. The principle of this antenna is actually very simple: A ring with the circumference of one wavelength is excited with its resonant frequency and thus acts as a filter and antenna at the same time. Since this type of loop antenna has a fairly high radiation impedance, a suitable matching network is needed for it, which is not easy to calculate. That's why we at “electronics.unmessed” have developed a dimensioning tool based on EXCEL: it allows you to design such an antenna for different materials and for an arbitrary frequency band. ► PayPal - you can support my channel directly here: https://paypal.me/acamediacon?country... ► Playlists: All videos:    • All Videos   Introduction and background:    • About the Channel   ► Download free tools and materials: https://github.com/electronics-unmess...

Featured playlist

35 videos
Antennas & Wave Propagation
electronics unmessed

Transcript

Follow along using the transcript.

electronics unmessed

380 subscribers

 Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

About the author

文 » A