September 17, 2025

Losses in WR187 waveguides (8.2-12.4GHz, a=47.55mm, b=23.78mm) stem from conductor surface roughness (Ra>0.5μm adds 0.1-0.3dB/cm), dielectric oxidation (tanδ=1e-4 vs. 1e-6 clean, +0.02-0.05dB/cm), mode conversion at misaligned flanges (>λ/100, λ≈30mm at 10GHz, +0.1-0.3dB), and scattering from scratches (>λ/20, +0.05-0.15dB/cm). Wall Material Conductivity Impact The conductivity of the wall material is a primary factor in determining the […]

A quad-ridged horn antenna typically has a beamwidth of 60-80° in X-band (8-12 GHz), varying with ridge spacing and length; lower bands (e.g., L-band) may reach 90-100°, while higher Ku-band narrows to 50-60°, ideal for satellite communication directional coverage. Basic Antenna Beamwidth Explanation​​ Antenna beamwidth, specifically the ​​Half-Power Beamwidth (HPBW)​​, is the most critical metric