RF - February 2009 - (Page 9)

www.keithley.com MIMO Test Solutions for Multi-Antenna Devices and Systems The Model 2895 MIMO Synchronization Unit provides synchronized signals to the system instruments. This gives the system a highly precise and stable alignment between up to eight signal analyzers or signal generators. The Model 280111 WLAN 802.11n MIMO Signal Analysis Software is the industry-leading PC-based tool. This fast and powerful software has an extensive measurement suite for analyzing up to 16 signals of an 802.11n WLAN device with 4×4 MIMO channels. Precise and Stable Synchronization The MIMO systems are designed to have a stable RF carrier and a precise signal sampler alignment between all instruments in the system. The Model 2895 MIMO Synchronization Unit distributes a common LO (local oscillator), common clock, and precise trigger to all the signal analyzers or generators connected in the system. This high alignment enables the system to make accurate and repeatable measurements of OFDM (orthogonal frequency-division multiplexing) MIMO signals. The RF carrier’s phase of all instruments in each system is synchronized with one another without the limitations of using a phase-locked loop. The RF carrier phases have less than one degree peak-to-peak phase jitter between any two instruments. Additionally, the signal samplers of the MIMO system instruments are precisely aligned. The system has a maximum sample time difference of 1ns and peak-to-peak sampler jitter of less than 1ns between any two instruments. Precise and stable synchronization is achieved by providing common LO, common clock, and precise trigger signals to all of the signal analyzer or signal generator instruments. Common LO, Lock, and Trigger Signals 2895 MIMO Synchronization Unit Signal Analysis Software Keithley s SignalMeister" RF Communications Test Toolkit software, Model 290101, provides both complex signal generation and signal analysis capability for MIMO applications like WLAN 802.11n and WIMAX 802.16e Wave 2. This package is designed to work seamlessly with Keithley s VSGs, VSAs, and MIMO synchronization units to form a complete measurement system with both tightly synchronized signal generation and signal acquisition for these complex communications systems. In addition to extensive EVM and MIMO channel response measurements, this software can also be used to evaluate SISO systems. MIMO signals are easy to create, utilizing ready-made signal libraries with signal impairments elements to create a variety of distortion including channel distortion. Download a MIMO data sheet | View a brief, online MIMO product intro Get advice for your application today! Click here, email us at applications@keithley.com, or call us at 1-800-492-1955 and press 3 to speak to an applications engineer. Request a quote a g r e at e r m e a s u r e o f c o n f i d e n c e 9 http://www.keithley.com http://www.keithley.com/rf/mimo http://www.keithley.com/products/software/?mn=280111 http://www.keithley.com/data?asset=50873 http://www.keithley.com/events/proddemos/mimosystemintro/index.html http://www.keithley.com/support http://www.keithley.com/company/quick_quote http://www.keithley.com

Table of Contents Feed for the Digital Edition of RF - February 2009

RF - February 2009 Contents WiMAX Testing WLAN Testing MIMO System Testing Series 2900 Vector Signal Generators Series 2800 Vector Signal Analyzers MIMO Test Systems SignalMeister™ v3.0 RF Communications Test Toolkit Software Additional Reference Resources

RF - February 2009

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