Near-Field and Far-Field Measurements

Near-field and far-field measurements are methods used to analyze electromagnetic waves from antennas. Near-field measurement occurs close to the antenna, capturing detailed field patterns that help identify issues and optimize design. Far-field measurement is done at a much greater distance, where the waves form a stable, predictable pattern, allowing accurate assessment of the antenna’s overall radiation pattern and strength. In simple terms, near-field is like examining signals up close to see detailed behavior, while far-field looks at the signals from afar to understand their overall direction and strength.