AIE-4X4LR
The AIE-4X4LR air interface emulator enables real emulation of RF levels for radio communication between mobile devices and wireless networks. It has 4 RF Ports for base stations and 4 ports for DUTs like cellular phones. All signal paths are bidirectional. Every 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 variation of levels can be done in a wide dynamic range with internal precision attenuators. The AIE-4X4LR allows to recreate a realistic air interface, whereby the DUTs receives multiple cellular stations simultaneously with varying propagation loss. In particular it allows the simulation of handovers between cellular base stations and cellular phones. The reproducible emulation of air interface scenarios in laboratory environment saves time and cost in product development and verification.
step size 0.25 dB 500 ... 9000 MHz attenuation range 0 up to 127.0 dB 4X4 ports
Matrix Function
The AIE-4X4LR can also be used as non-blocking matrix. Every output has free access to each input. Attenuators between the signal paths allow also the emulation of fading effects. With a fast attenuator response time, the device is an efficient and fast solution for automatic testing systems.
Wideband
The operating frequency range covers more than 500 MHz to 9000 MHz. Therefore, the AIE-4X4LR is useable for all cellular standards and Wi-Fi standards including 5G (FR1).
High Dynamic
The setting range of the digitally controlled attenuators covers 63.5 dB and is adjustable in 0.25 dB steps. This allows test scenarios with highest requirements for dynamics and accuracy. All RF ports of the air emulation system allow signals levels of up to 2 Watts.
Synchronous Operation
For remote control the AIE-4X4LR offers LAN and USB interfaces. AIE-4X4LR offers additional a TRIGGER IO port. This Interface provides a precise trigger pulse which complies with the physical execution of the applied switching command. On the other hand, external pulses can be applied to this port in order to trigger the execution of queued switching commands synchronously. The attenuator configuration of the emulator can be preloaded with SCPI oriented ASCII strings via LAN interface without execution. After a positive TTL pulse slope at the trigger input, the preloaded attenuator configuration will be executed only by hardware in micro seconds.
Latest modification: 11.01.2018