AIE-4X4LR
4X4 channel radio field emulator, 500 to 9000 MHz
The AIE-4X4LR radio field emulator enables true emulation of RF levels for radio communications between mobile devices and wireless networks. The device has 4 RF ports for base stations and 4 ports for DUTs such as mobile phones. All signal paths are bidirectional. Each of the 4 DUT ports can be fed with a composite RF signal that is individually composed of a programmable mix of the 4 signals coming from the base station ports.
The levels can be varied over a wide dynamic range with internal precision attenuators. The AIE-4X4LR enables the simulation of a realistic air interface, where the DUT receives several mobile stations simultaneously with different propagation losses. In particular, it enables the simulation of handovers between cellular base stations and mobile phones. The reproducible emulation of air interface scenarios in a laboratory environment saves time and money in product development and verification.
*Key Features
matrix function
The AIE-4X4LR can also be used as a non-blocking matrix. Each output has free access to each input. Attenuators between the signal paths also allow the emulation of fading effects. With a fast damping response time, the device is an efficient and fast solution for automated test systems.
High bandwidth
The operating frequency range is more than 500MHz to 9000MHz. Therefore, the AIE-4X4LR can be used for all cellular standards and Wi-Fi standards including 5G (FR1).
High dynamics
The adjustment range of the digitally controlled attenuators is 63.5 dB and can be adjusted in 0.25 dB increments. This enables test scenarios with the highest demands on dynamics and accuracy. All RF connections of the air emulation system allow signal levels of up to 2 watts.
synchronous operation
The AIE-4X4LR offers LAN and USB interfaces for remote control. AIE-4X4LR also offers a TRIGGER IO port. This interface provides a precise trigger impulse that corresponds to the physical execution of the switching command applied. On the other hand, external impulses can be applied to this port in order to synchronously trigger the execution of pending switching commands. The emulator’s attenuator configuration can be preloaded without execution using SCPI-oriented ASCII strings over the LAN interface. After a positive TTL pulse edge at the trigger input, the preloaded attenuator configuration is only executed by the hardware in microseconds.