MULTI-PROBE NEAR FIELD ANTENNA TESTING SYSTEM

摘要

A multi-probe near field antenna testing system, comprising a testing system software carrier, a plurality of multi-probe near field antenna testing devices connected to the testing system software carrier via an active switching device, the multi-probe near field antenna testing device comprising a base, a metal arch ring fixed on the base, a plurality of probes having dual-polarized ultra-wideband wideband characteristics, the probes being evenly distributed at a certain angle and interval and disposed on the inner side of the metal arch ring, and foam holding poles; a lower end of the foam holding pole passes through the metal arch ring to connect to a goniometer, and a platform is disposed on an upper end of the foam holding pole, the platform carries an object to be tested, and the object to be tested is placed in a central positon of the metal arch ring, a probe selecting unit connected to the probe is disposed in the metal arch ring; in the base are disposed an interconnected control device, a power supply module, a reception amplifier, a transmission amplifier, and a transmission switching device. The multi-probe near field antenna testing system has a dual-polarized ultra-wideband probe array surrounding the object to be tested in 360 degrees around the periphery of the object to be tested, and replaces slow mechanical scanning with fast electronic scanning. The field at a spherical surface surrounding the antenna to be tested can be determined with only one-dimensional rotation of the object to be tested. Testing efficiency can theoretically improve by 40 times.