Ansoft Delivers Ultra-Wideband Design Library for Multiband OFDM
-- Test & Measurement World, 1/27/2005 12:22:00 PM
Ansoft has announced the availability of an ultra-wideband (UWB) design library for designers of multiband orthogonal frequency-division-multiplexed (OFDM) radio systems. The kit, for use with Ansoft Designer software, allows engineers to generate and detect Multiband OFDM Alliance (MBOA)-compliant OFDM waveforms for system- and circuit-level simulations.
Using behavioral models for all base-band and nonlinear RF elements, the kit enables the simulation of UWB radio systems. In addition, users can perform dynamic co-simulations with detailed, transistor-level descriptions of analog and mixed-signal blocks using Ansoft's Nexxim circuit simulator.
"Ansoft developed the MBOA design kit as part of an ongoing project to design and produce a direct-conversion UWB radio reference design with our partner UMC," said Dr. Lawrence Williams, director of technical business development at Ansoft. "The library allows designers to evaluate radio performance with true MBOA-compliant waveforms."
The library enables Ansoft Designer users to simulate all analog and digital signal processing (DSP) functions in the MBOA transmitter and receiver. Engineers can use the library to generate and detect MBOA-compliant waveforms and apply them at the behavioral level, the transistor circuit level, or both. For example, it is possible to predict co-channel and adjacent-channel interference and to compute error vector magnitude (EVM) and bit error rate (BER) at the receiver for any combination of behavioral- and transistor-level blocks. This true co-simulation capability allows users to have the system simulator dynamically drive parametric circuit and electromagnetic simulations.
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