The Model 3117 Double-Ridged Waveguide Antenna corrects the lower gain at the upper end of the frequency range that is commonly found in ridged waveguide antennas. It has uniform illumination of target surfaces and accurate gain measurement. In addition, the 3117 exhibits high gain and low VSWR across its operational frequency band, accepting input power of 300 W. It was designed and modeled using powerful workstations running electromagnetic simulation software as experienced RF engineers and the manufacturing team produced the practical and affordable antenna. All production units are individually calibrated at our A2LA accredited lab.