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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Featured Company - March 2003
This month's featured company is Eagleware, of Norcross, GA, U.S.A. Please tell Eagleware folks you saw them featured on the RF Cafe web site!
Eagleware offers an integrated environment that takes designs from specification through documentation. The GENESYS design flow starts with customer specifications which are used to develop system architecture. Synthesis tools then convert each block in the system into a circuit representation. The circuit is refined using linear and nonlinear circuit simulators, and then a layout is created. Electromagnetic simulation — including co-simulation with the circuit simulators —verifies the design. Prototype measurements are read into the GENESYS environment for final validation.

As each more detailed design representation is created, more detailed performance characteristics can be included in the overall system simulation. This concept of "Continuous Integration" saves time, facilitates team communication, and catches system errors early.

The GENESYS design flow starts with customer specifications which are used to develop system architectures, using a wide range of behavioral models such as amplifiers, mixer, splitters, couplers, and filters. Once the architecture is in place, simulate the system performance along each signal path. Since SPECTRASYS™ is a fast full-spectrum simulator, the complete spectrum may be tracked at each node of the design.

Eight synthesis tools take system block specifications and create first pass circuits that are ready for refinement. A range of synthesis modules synthesize matching networks, oscillators, filters (LC, distributed, active, and mixed), and group delay equalizers.

Once a circuit is entered, GENESYS simulates S, Y, H, and Z parameters, noise parameters, and stability factors as well as nonlinear DC and spectral (harmonic balance) parameters such as intermodulation distortion. The linear and nonlinear simulation engines are so tightly interwoven that you can perform all simulations and optimizations within a single workspace. A powerful equation and post-processing engine makes it easy to create custom measurements.

Using highly optimized simulation technology, designs are refined with real-time tuning. The speed of GENESYS is particularly valuable in completing statistical analysis such as Monte Carlo analysis or yield optimization.

The integrated layout module in GENESYS allows engineers to automatically create the layout from the schematic or manually create it through interactive design. Either way, complete layouts are created on up to 128 layers including metallization, IC processing, solder mask, and assembly layers and are output using built-in Gerber, GDSII, and DXF writers.

For ultimate accuracy, the metal in the circuit can be analyzed using electromagnetic simulation. Using EM-circuit co-simulation, lumped components such as transistors and capacitors can be simulated together with the metal.

The ultimate step in the design process is to test the design. Integrated into the GENESYS environment, TEST LINK™ reads data from network analyzers, spectrum analyzers, oscilloscopes, and noise figure meters through GPIB or RS-232 into the workspace. This data can be used to compare measured results to simulation, or it can be used directly as a model or as a stimulus to the design.

The last part of any design is completing the documentation. Much of the work is already done since the schematics, layouts, and simulation results are stored in visual form. Comments are easily added to the schematic, graphs and layout. Or, transfer information to office automation tools through simple cut and paste operations.

Achieve power, speed and accuracy with the GENESYS design suite from Eagleware.

Eagleware Corporation
635 Pinnacle Court
Norcross, GA 30071
www.eagleware.com
Phone: 1.678.291.099

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