For views of deep-sky objects, star clusters and galaxies, opt for a reflector or a Schmidt-Cassegrain telescope. And if you need more detailed guidance, have a look through our piece on the best ...

Want to see Mars at its brightest in January? The best telescopes for seeing planets give you the clearest views of our celestial neighbors. The new year is a great time to test out your ...

Table 1. VLA cassegrain focus receivers. Observations in the 224–480 MHz range (P-band) are enabled by a receiver consisting of a pair of linearly polarized dipole antennas located near the prime ...

Abstract: A hat feed loaded with low-profile electromagnetic band gap (EBG) structure is proposed to reduce the radiation side lobe levels (SLLs) of reflector antennas. A mushroom shaped EBG structure ...