Millimeter-wave Radars utilized in contemporary vehicles for cruise manage as well as collision avoidance are typically developed to work at varieties on the purchase of 100 meters or so. With some engineering nous, however, experimenters have gotten these gadgets sending signals over varieties of as much as 60 km in some tests. [Machining as well as Microwaves] chose to see if he might push the boat out even further, as well as set out machining some waveguide combiner cavities so he might utilize the radar chips with some extremely high-performance antennas.
Precision-machined elements are needed to effectively utilize these 122 GHz elements for long-range transmissions.
The end goal of the job is to create a 53 dBi antenna for the 122GHz signal put out by the mmWave radar chips typically discovered in automotive applications. working at this frequency needs getting tolerances just so in purchase to produce an antenna that performs well.
Plenty of fine lathe work as well as joyful machining banter later, as well as the precision waveguide is done. It may not look like much to the untrained eye, however much cautious style as well as machining went on to make it both simple to connect to the radar as well as parabolic antenna system, as well as to make it carry out at a high sufficient level to ideally break records set by other enterprising radio experimenters. If that wasn’t all difficult enough, though, the final task included making 24 of these things!
There aren’t a whole great deal of microwave antenna-specific machining channels on YouTube, so if you’ve been thirsty for that type of content, this video is extremely much for you. If you’re much more thinking about antennas for lower frequencies, though, you may discover a few of our other stories to your liking. video after the break.
[Thanks to MendesL for the tip!]