Project notes and build logs for ELEKITSORPARTS hardware experiments, firmware work, and practical maker electronics.
Overview: A vertical antenna is an unbalanced antenna, but it may still need a common mode choke balun to choke out the unwanted current flowing on the outer surface of your coax braid. Reasons for A Choke Balun: 1. Blocking Unwanted Radiation from the Feedline A vertical antenna uses the radial system (your elevated ground […]
A Current Choke Balun with a 3D Printed Housing Read More »
Nowadays, we use more and more electronic devices in daily life and work—like smartphones, tablets, laptops and smart wearables. Our need for quick charging is growing fast. Some people may always feel they don’t have enough charging ports on the desktop. To fix this issue, here comes a project, which is an open-source DIY desktop
A 260W Multi-Port Desktop Quick-Charge Unit Read More »
The full-wave loop antenna stands as a fascinating and effective alternative to the ubiquitous dipole, offering desirable characteristics such as gain of approximately 2dB over a dipole, a typically lower noise floor, and a closed-loop radiation pattern. Traditionally, a square or circular full-wave loop presents a feed point impedance in the range of 100-120 ohms,
A 50-ohm Full-Wave Loop for 2m Band Read More »
