Key Specifications, Waveguide Size: Broadband, Direction Type: Directional, Polarization: Linear, Frequency, Min: 1 GHz, Frequency, Max: 18 GHz. Broadband SMA Waveguide Horn Antenna Operating from 1 GHz to 18 GHz with a Nominal 11 dBi Gain with SMA Female Input Connector. PE9887-11 Broadband waveguide horn antenna is also known as a Broadband horn antenna. Our Broadband horn antenna has a minimum frequency of 1 GHz and a maximum frequency of 18 GHz. This Broadband waveguide horn antenna with is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our Broadband horn antenna can ship worldwide the same day as it is purchased as with our other available RF parts.