Description

You're diving into a fascinating niche of high-performance RF antennas! An ultra broad wall dual linear polarization four-ridged antenna is a specialized evolution of the classic horn antenna, engineered for ultra-wideband (UWB) applications with enhanced polarization purity and beam control. 📡 Key Characteristics - Structure: Four-ridged waveguide design (an advancement over double-ridged horns) enables broader bandwidth and better mode suppression. - Polarization: Dual linear (typically horizontal and vertical), ideal for MIMO systems, polarization diversity, and EMC testing. - Frequency Range: Can span from 1 GHz to 40+ GHz, depending on the specific design and ridge geometry. - Gain: Typically ranges from 10 to 20 dBi, increasing with frequency. - VSWR: Often < 2:1 across the band, ensuring efficient power transfer. - Cross-Polar Isolation: >30 dB is common, which is excellent for clean polarization separation. 🧪 Applications - EMC/EMI Compliance Testing: Due to its wide bandwidth and stable radiation pattern. - Antenna Calibration: Serves as a reference antenna in anechoic chambers. - Radar & 5G/mmWave: Supports high-frequency beamforming and signal integrity testing. - Scientific Research: Ideal for material characterization, shielding effectiveness, and propagation studies. 🔧 Design Enhancements - Four ridges improve impedance matching and suppress higher-order modes more effectively than traditional double-ridged designs. - Broad wall excitation allows for better control of E- and H-plane beamwidths, reducing asymmetry and side lobes. If you're considering this for a test setup or system integration, I can help you compare models like the OBH-180400-20 or explore dielectric-loaded variants like the UWB horn from Ohio State University. Want to dig into beamwidth specs or mounting options next?