Horn Lens Antennas

M.E.C.’s horn lens antennas consist of a Rexolite lens, fed by a corrugated conical horn in an aluminum housing.  The inner surface of the lens contains surface matching grooves to reduce VSWR.  The corrugated horn produces symmetrical illumination of the lens with low spillover.  The resultant far-field pattern has sidelobes of approximately -25 dB and cross-polarization at -30 dB.  Beam efficiency is greater than 92%.  Typical VSWR is 1.3:1.

These parts are mechanically rugged and can withstand vibration, temperature extremes, wind, and rain. Any polarization and connector interface can be provided with the application of appropriate transducers.  Dual frequency performance can also be obtained using a diplexer (e.g. 10.7 and 37 GHz or 6.8 and 10.7 GHz).

Corrugated Conical Horn Antennas

M.E.C.’s wide flare corrugated conical horn antennas produce nearly constant and equal E and H-plane beamwidths over broad frequency bands. Beamwidths can range from 20 to 70 degrees. These units also feature very low side and cross polarized lobes and low internal losses.

M.E.C.’s narrow flare corrugated conical horn produces frequency dependent, equal E and H-plane beamwidths over an octave beamwidth. Beamwidths can range from 7 to 40 degrees.

The corrugations in these horns modify wall impedance to excite a hybrid mode (HE11) and produce an aperture field nearly identical in all planes. Due to their circular symmetry, these horns support any polarization.