FWT Antenna Gain and Range

Antenna gain is often expressed in terms of dBi, to express the ability to broadcast power when compared with an isotropic or point source. The typical reference is the standard ½-wavelength dipole antenna which has gain of 1.8 dBi and perfect hemispherical distribution. And, for this reference, doubling communications link range requires four times the power or a +6 dB gain challenge.

Our classic FWT convex antenna has the broadcast pattern controlled using dielectric wave shaping. This provides smooth and even power over the selected portion of a hemisphere while reducing energy elsewhere. Focused Wave Technology makes it possible to place and control directivity.

The concave shaped dielectric focuses broadcast energy. Below, the FWT cylindrical lens provides an additional 2.5 dB of gain. If you used complementary FWT antennas your system would have additional 5 dB link margin without any additional RF or battery power. Your 60 meter link can go over 100 meters by using FWT antennas alone!

FWT uses classic antenna elements and dielectric material, with an integral substrate to produce larger than normal gain at reduced size.