August 13, 2025

Near-field probes typically operate from 30MHz to 6GHz, with specialized models reaching 40GHz for millimeter-wave applications. Magnetic (H-field) probes use loop diameters (1-5cm) to optimize sensitivity below 1GHz, while electric (E-field) probes employ 1-10mm tips for high-frequency precision. Most maintain ±2dB accuracy when calibrated with a 10V/m reference field at 1GHz. What Near-Field Probes Do […]

Near-field measurements analyze antenna patterns within ​​1-2 wavelengths​​ (λ) using probes, capturing detailed phase/amplitude data for simulations, while far-field tests (beyond ​​2λ²/λ​​) assess radiation efficiency in open ranges or anechoic chambers. Near-field requires precise positioning (±1mm accuracy), whereas far-field needs ​​10+ meters​​ of clearance. Convert near-field data via Fourier transforms for far-field predictions. ​​Distance and