Building a 5G base station with a successful link in the presence of environmental obstacles requires over-the-air (OTA) performance characterization in the field. Path loss and link budget are essential measurements for investigating 5G link behavior. A 5G link includes line-of-sight (LOS) and non-line-of-sight (NLOS) components in the radio propagation environment. To assess the impact on millimeter wave (mmWave) links and path loss, engineers must include factors such as rain fade, shadowing, foliage, atmosphere absorption, humidity, and Fresnel zone blockage.
With two portable microwave signal analyzers, engineers can use the extended-range transmission analysis measurement method to connect the transmitter (5G base station) and the receiver (mobile phone). The splitter at the transmitter measures the output power from the base station. With an accurate measurement of the transmitting power level, the other microwave signal analyzer, which acts as the receiver, will be able to calculate the path loss. Engineers can move an isotropic antenna to different locations in the environment, so the analyzer can measure effective isotropic radiated power, which is crucial for path loss characterization.
5G mmWave air interface characterization solution
Characterizing 5G OTA requires an integrated, portable signal analyzer with a phased-array antenna. Keysight handheld microwave signal analyzers support FR1 and FR2 5G bands, up to 54GHz, and gNodeB RF parametric test over-the-air in the field. The analyzer addresses 5G network deployment challenges by characterizing mmWave path loss and coverage.
N9962B FieldFox Handheld Microwave Signal Analyzer, 50 GHz
A lightweight, durable, software-enabled, microwave signal analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more