Eagleware-Elanix Corp., a supplier of communications system design software, has announced a new release of its popular RF and microwave design suite. Labeled GENESYS 2005, the new version includes WhatIF (a new frequency planning tool), CAYENNE (a new time domain simulator), two new synthesis modules -- AMPLIFIER and MIXER, enhancements to the linear, nonlinear, and system architecture simulators, new models, and a revamped simple user interface.

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WhatIF, a frequency planning tool, uses a new simulation technique that analyzes spurious performance of intermediate frequencies (IFs). CAYENNE is a SPICE-like time domain simulator. In addition to the normal analysis capabilities available in other time-domain simulators, CAYENNE incorporates the following features:

• Direct use of S-parameter data.
• Models that are exactly correct at a specific high frequency and are approximate at other frequencies.
• User trade-off of accuracy vs. simulation time.
• Co-simulation with electromagnetic simulator, including lumped elements.
• Compatibility with all GENESYS linear, nonlinear, Verilog-A, and system elements.
• Accepts data written by SystemVue system simulator to allow RF/microwave transient analysis with real baseband time-domain input.

Likewsie, MIXER, a new mixer synthesis module, allows the user to design and analyze mixer configurations using a variety of topologies as starting points. The 11 topologies of the initial release range from simple passive configurations such as the "diode rat race mixer" to complex active models such as the "bipolar double balanced Gilbert mixer."

AMPLIFIER, the new amplifier synthesis module, facilitates the design of linear low-noise RF amplifiers. Requirements can be automatically transferred from system-level behavioral models, and simulation results can be exported to system-level simulation to check results. Transistor and FET implementations are supported in both single and multiple stage configurations.

It also incorporates numerous user interface enhancements, including datasets that provide a persistent view of simulation results and permit easy comparisons among simulation runs, enhancements to the equations capabilities to include structured programming constructs such as WHILE loops and multi-line if-then-else statements, scripting capabilities have been extended to support all design elements. Other significant enhancements in GENESYS 2005 include filter synthesis, oscillator synthesis, SPECTRASYS, arbitrary port/model impedance, phase noise, and hierarchical models, new Motorola LDMOS models, Taconic substrate library, and new ideal circuit components.