FT-RF WR1800 Waveguide Input Antenna is a precision-engineered Sub-1GHz / VHF Band waveguide input antenna (410 MHz to 620 MHz) designed for seamless integration into high-frequency waveguide systems. With an optimized input structure, it provides excellent signal coupling and stable radiation characteristics for low-frequency EMC radiated emissions testing, defense broadcast calibration, and high-precision measurement systems.

Constructed from high-precision CNC machined aluminum alloys, this antenna guarantees high cross-polarization rejection (>30 dB) and smooth gain flatness across the entire frequency band, ensuring reliable and repeatable measurement results in laboratory environments.