Fitting a simple, passive, parabolic reflector around your router’s antenna can focus the signal exactly where you want it. Your network will reach farther, and the addition can even improve ...

The resulting Fresnel reflector concentrates 117 times the normal solar radiation onto a ... on the spiral reflector. True parabolic dishes do work because the ... area of the sphere). ...

The classic PAR is a reflector and lamp all in one. It is a sealed-beam lamp, like an old-school car headlight. The rear of the envelope (the glass enclosure of the bulb) has a parabolic shape and is ...

STRL's deployable mesh reflector antenna for FPUs has performed well in the field. The lightweight mesh antenna uses a fine stainless steel wire mesh for its reflector surface.