Telescopes are specialist optical instruments that have been around for over 400 years and are useful for many applications including seafaring, military operations and especially stargazing. But not ...

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 ...

Astronomy magazine's April 2004 issue featured a review of Konus U.S.A. Corp.'s Motormax-130 HM, a 5.1-inch (130mm) f/15.4 Maksutov Cassegrain telescope. The telescope boasts a 2000mm focal length, ...

The Ceravolo 300 Astrograph is an 11.8-inch (300 mm) aperture Dall-Kirkham Cassegrain reflector telescope. Its construction incorporates a carbon-fiber tube, a fused-quartz primary mirror, and an ...

Holiday shopping season has really kicked into gear, and if you have a stargazing fan on your gift list, you have a lot of choices. I think the best thing to do is buy online from one of the major ...

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 ...

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 ...