The WI-112-UBR-15 is a laboratory-grade microwave Standard Gain Horn Antenna professionally engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for high-fidelity directional transmission and calibration routines across the 7.05 GHz to 10.0 GHz X-Band spectrum. Meticulously optimized to enforce exceptional boresight accuracy paths, this premium horn antenna delivers a flat nominal directive gain profile of 15 dBi combined with an exceptionally low maximum V.S.W.R threshold of 1.3 : 1. Precision CNC machined from high-grade structural aluminum alloy in Taiwan, the advanced horn flare geometry establishes a highly uniform radiation footprint, providing narrow -3dB beamwidths of 32° in the H-plane and 31° in the E-plane matrix. Featuring an integrated Waterproof Structure coupled to an environmentally shielded core, this lightweight 190 g component ensures flawless electromechanical coupling via its standardized rectangular square UBR Style cover flange layout, safely managing continuous wave power loads up to 500 Watts (CW). This optimized structural architecture avoids destructive field distortion modes, rendering it the definitive choice for EMI/EMC testing, anechoic antenna measurement ranges, all-weather outdoor tactical deployments, and mission-critical Signal Defense localized scanning networks.