Radio Frequency (RF) & Wireless Design

In recent news NASA is developing a new giant Cassegrain Dish to communicate with some of its launched deep space missions : https://www.jpl.nasa.gov/news/nasa-adds-giant-new-dish-to-communicate-with-deep-space-missions

The Cassegrain dish is a parabolic reflector designs that actually has two dishes ; one parabolic concave dish for aggregating all the RF energy and another convex reflector that focuses the RF energy into a waveguide opening at the center of the parabolic dish. https://en.wikipedia.org/wiki/Cassegrain_antenna

I have created a smaller scale model for higher millimeter wave (mmwave) frequencies here :

Grabcad model

Sage Millimeter Cassegrain Parabolic Dish Antenna for 94 GHz (W Band) = mmWave

This is a model of a Sage Millimeter Cassegrain Parabolic mmWave Antenna for frequencies from 92 to 96 GHz, a gain of 45 dBi (31,600 x) , return loss of 14dB (25x), 0.7 degrees 3dB beam width, linear polarization, and uses a WR-10 waveguide connection. The parabolic reflector is 12", the hyperbol...

But unlike my smaller dish, the Deep Space (DS-53) is a 230-foot (70-meter) antenna !

"DSS-53 is the fourth among six new beam waveguide antennas that the agency is adding to the network. When the project is complete, each ground station – Madrid, along with one in Canberra, Australia, and the Goldstone facility near Barstow, California – will have a total of four such antennas."