PARIS — The Intelsat New Dawn satellite launched April 24 has been unable to deploy its C-band reflector antenna, depriving the satellite of half its intended functionality, because the antenna’s ...

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 ...

Engineers at Los Alamos National Laboratory are reinventing the mirror, at least for microwaves. Their invention could replace the familiar satellite dishes and microwave horns seen on rooftops and ...

An antenna reflector built by Harris Corporation (NYSE: HRS) for the geosynchronous ICO G1 global communications satellite was successfully deployed on orbit Saturday, April 26, and will play a key ...

The Ka-band frequency spectrum has recently gained attention thanks to the successful launch of several new satellite services, all of which utilize the advantages of a high frequency range. The beam ...

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 ...

A 6m-diameter composite reflector frame that could be collapsed into a 1.83m by 0.36m envelope for launch, weigh less than 13 kg and then deploy as expected in the zero-gravity LEO environment. A ...

I've constructed hundreds of antennae in the past. Bowtie dipole arrays, biquads, parabolic reflector dipoles, straight up yagi, logarithmic yagi, log periodic, heliacal and simple 1/4 whips. So when ...

Are you a wizard at antenna design? Chances are you’ve never even given it a try, but this tool could change that. Most home-made WiFi signal boosting antenna plans around the Internet share one ...

Designing equipment that meets stringent size and mass restrictions for use on aircraft brings extra challenges for instrument developers, as Tamara Clelford explains Antennas are used for a huge ...