Collaborate Disseminate
A parabolic antenna is a simple enough device, a curved reflector designed to focus all the radiation from the direction it’s pointed into a waveguide or antenna at its feedpoint. …read more Continue reading Need A Low-Mass Antenna In Space? Just Blow It Up!
If you want to simulate a tic-tac-toe game, that’s easy. You can evaluate every possible move in a reasonable amount of time. Simulating antennas, however, is much harder. [Rosrislav] has …read more Continue reading Better Antennas via Annealing (Simulated)
[Machining and Microwaves] has long wanted to use a 3D printer to print RF components for antennas and microwave lenses. He heard that Rogers — the company known for making …read more Continue reading 3D Printing Antennas with Dielectric Resin
City officials have found around a dozen of the antennas and no one is sure what they’re for. Continue reading Mysterious Antennas Are Appearing in Utah’s Hills and Officials Are Stumped
It’s a skill that radio amateurs pick up over years but which it sometimes comes as a surprise to find that is not shared by everyone, the ability to casually …read more Continue reading Identify That Antenna By Sight
It’s a skill that radio amateurs pick up over years but which it sometimes comes as a surprise to find that is not shared by everyone, the ability to casually …read more Continue reading Identify That Antenna By Sight
Perhaps the second most famous law in electronics after Ohm’s law is Moore’s law: the number of transistors that can be made on an integrated circuit doubles every two years …read more Continue reading Smaller is Sometimes Better: Why Electronic Components are So Tiny
It sometimes seems as though antennas and RF design are portrayed as something of a Black Art, the exclusive preserve of an initiated group of RF mystics and beyond the reach of mere mortals. In fact though they have their …read more
If you want to listen to satellites, you have to be able to track them as they pass over the sky. When I first started tracking amateur satellites, computing the satellite’s location in the sky was a part of the challenge. Nowadays, that’s trivial. What’s left over are all the …read more
Continue reading Tracking Satellites: The Nitty Gritty Details
Dealing with an antenna is one of those topics we never feel like we know enough about. MIT had a live stream of [Dr. Kiersten Kerby-Patel] discussing antennas in a talk, sponsored by the ham radio club on campus. You can see the recording below.
The main assertion of the …read more