Dual reflector antennas are considered as pencil beam antennas that can produce radiation identical to searchlight. Cassegrain Reflector Antenna Design consists of various effects caused by blockage ...

In this paper, a Ku-band corrugated feed horn antenna for a Cassegrain reflector is designed and optimized. The horn dimension parameters are optimized so that it has a radiation pattern with a ...

If this is the easy part of making a complete reflector telescope from a single piece of glass, we can’t wait to get a load of the hard part! A little backstory may be in order for those who don’t ...

This review, “Celestron’s Advanced Series Telescopes,” appeared in the August 2004 issue of Astronomy magazine. The first go-to telescopes, introduced a decade ago, had one thing in common: they were ...

CASSEGRAIN AND GREGORIAN REFLECTORS.—For some time past, Prof. Schaeberle, of the Lick Observatory, has been experimenting on the applications of these rather neglected forms of reflecting telescopes ...

Boller & Chivens 16-inch F/18 Cassegrain reflector acquired by Harvard College Observatory in 1967 for use by students at their Oak Ridge station. At Harvard it was dedicated as the Cooke Memorial ...