The TEMH20 from RFSpin is a TEM Horn Antenna that operates from 1 to 22 GHz. This linearly polarized antenna has an antenna factor from 23.5 to 41 dB/m and a VSWR of 2.6:1. It generates homogenous fields with high gain using the dielectric lens which allows close proximity radiation immunity evaluation testing. This antenna is available in a corrosion-resistant housing that measures 112 x 198 x 345 mm with a 3.5 mm coaxial connector and comes with an adapter with ¼ inch inner thread.