The ATH2G18 from AR RF/Microwave Instrumentation is a Horn Antenna that operates from 2 to 18 GHz. It can handle an input power of up to 120 W, provides up to 12 dB of gain, and has a VSWR of 2.0:1. This horn antenna has an E-plane beamwidth of 60° and an H-plane beamwidth of 70°. It is designed to deliver high-intensity fields necessary of RFI/EMI field testing within and beyond the confinement of a shielded room. This lightweight antenna weighs 283g and has a tough build for outdoor use and easy mounting on the rear flange. It is available in an enclosure that measures 4.98 x 3.24 x 3.88 inches with SMA-female connectors and is ideal for RFI/EMI testing and high-power amplifier applications.