To me, this means a large parabolic reflector, a feed horn made of brass sheet, coat hanger wire, and at least for the initial experiments, an RTL-SDR dongle. I’ve done the calculations ...

Typical polar distributions of single, double, trigonal, trapezoidal, plane, and parabolic arrays are shown. The distance between antenna and reflector for optimum forward effect, for plane and other ...

To me, this means a large parabolic reflector, a feed horn made of brass sheet, coat hanger wire, and at least for the initial experiments, an RTL-SDR dongle. I’ve done the calculations ...

This focussing effect is very strong with WAVELENGTHs less than the aperture of the reflector, making it particularly suitable for recording high frequency sounds such as birdsong. Schematic diagram ...

A parabolic reflector antenna utilizes a paraboloid-shaped reflecting surface to collect and re-radiate electromagnetic waves. It is widely regarded as the simplest and most efficient reflector ...

Designed and optimized parabolic reflector antenna using CST Microwave Studio. Determined S-parameter, VSWR, Gain, Directivity, Radiation pattern, E-field, H field,Surface Current and analyzed antenna ...

Abstract: Radio radiation from the Milky Way was serendipitously discovered by Jansky in 1932. Reber used a home-built parabolic reflector to map the “radio sky” around 1940. Radio astronomy quickly ...

Parabolic space heaters are a type of infrared heater that use a parabolic reflector to aim the heat in a concentrated beam.

The system is demonstrated by continuously imaging multiple cardiac monolayer and Caenorhabditis elegans preparations. The random-access parallel (RAP) system uses a large parabolic reflector and ...