High-performance RF/uW/Analog/RFIC Design & Verification

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Ansoft Designer® is an integrated schematic and design management front-end for Ansoft's best-in-class simulation technologies, Nexxim®, HFSS™, Q3D Extractor®, and SIwave™. Ansoft Designer is the foundation for a highly accurate design flow that allows users to precisely model and simulate complex analog, RF, and mixed-signal applications and perform signal-integrity analysis and system verification of high-performance IC/package/board designs. This flexible, easy-to-use software includes schematic capture and layout editing, netlist generation, a planar electromagnetic solver (Method of Moments), and sophisticated data visualization and analysis tools.

Ansoft Designer Product Suites

Ansoft Designer technology is available in application product suites targeted to specific design needs and applications. These product suites combine subsets of Ansoft Designer and Nexxim functionality for engineers that may not require the advanced feature set available in the full products.

Signal Integrity Analysis Product Suite

• Ansoft Designer SI
• Ansoft Designer SI Circuit

RF and Microwave Product Suite

• Ansoft Designer RF
• Ansoft Designer RF Circuit
• Ansoft Designer Planar Electromagnetics

New in Ansoft Designer v4.1

• S-Parameter Analyzer tool
• I/O Wizard for channel setup
• Push excitations link for QuickEye & VerifEye analyses to HFSS, SIwave and PlanarEM.
• Crosstalk channel analysis for QuickEye & VerifEye
• Peak Distortion analysis
• Expanded active and passive libraries for high frequency designs
• Receiver jitter and noise

Example of Ansoft Designer system simulation capabilities.
Top Left: WiMax mobile communication system schematic
Top Middle: Cross-Modulation spectrum
Top Right: Swept Bit Error Rate Responses for MPSK systems
Bottom Left: Eye Diagram for QPSK transmitter
Bottom Middle: Constellation diagram for 128QAM system
Bottom Right: End-to-End communication system including Baseband & RF transmitters and receivers

Designer SI - Signal Integrity Analysis Product Suite

The signal integrity analysis suite offers a subset of Ansoft Designer and Nexxim, Ansoft's advanced high-capacity circuit simulator technologies for engineers designing high-speed serial interfaces such as XAUI, XFI, Serial ATA, PCI Express, HDMI, and FB-DIMM. The Designer SI option also includes the 2D Extractor, which allows the user to extract the parasitics of transmission line cross-sections and include them in the circuit analysis. Engineers that do not require the complete feature set available in Ansoft Designer and Nexxim products but desire a tailored solution that leverages Ansoft's expertise in advanced circuit simulation and electromagnetic field simulation to reliably characterize and design complex serial channels can use Designer SI. For those interested specifically in a circuit simulation solution, the Designer SI Circuit option will satisfy their needs. Both Designer SI and Designer SI Circuit include Ansoft's powerful QuickEye and VerifEye capability that provide statistical analysis and transient simulation capabilities to rapidly characterize high-speed serial channels.

Functionality Comparison

Designer SI Circuit example
Top Left: HDMI Cable TDR compliance test circuit
Top Middle: Eye diagram response with mask, histogram and transient display
Top Right: Bit Error Rate (BER) contour plots from a statistical channel analysis (VerifEye)
Bottom Left: BER bathtub plots with transmit and receive jitter, whose distribution is also shown in the middle
Bottom Middle: HDMI Eye compliance test circuit with dynamic links to HFSS and 2D Extractor
Bottom Right: HDMI Channel frequency attenuation profile as a function of cable length

Designer RF - RF and Microwave Product Suite

The Designer RF product suite offers a subset of Ansoft Designer and Nexxim, Ansoft's advanced high-capacity circuit simulator technologies for design of RFIC's, MMIC's, wireless transmission and System-on-Chip (SoC). Engineers that do not require the complete feature set available in Ansoft Designer and Nexxim products but desire a tailored solution that leverages Ansoft's expertise in advanced circuit simulation and electromagnetic field simulation to reliably characterize and design complex RF devices can use Designer RF product suite. For those interested specifically in a RF circuit simulation solution, the Designer RF Circuit option will satisfy their needs. Finally, engineers' desiring a solution specifically for planar electromagnetic field simulation the Designer Planar EM option is available.

Functionality Comparison

Designer Planar EM example
Top Left: Smith chart response for Cauer lowpass filter
Top Middle: 16x16 patch antenna array with current density shown with color
Top Right: Parameterized Tripole Frequency Selective Surface
Bottom Left: Layout and mesh for Cauer lowpass filter
Bottom Middle: 4 Element circular polarized patch antenna
Bottom Right: Transmission of Horizontal and Vertical polarizations for FSS structure

Designer RF Circuit example
Top Left: Swept VCO Phase Noise responses
Top Middle: Power Amplifier circuit
Top Right: Inter-modulation products from Harmonic Balance simulation
Bottom Left: Swept harmonic power curves and Intercept Point curves
Bottom Middle: VCO transient startup response
Bottom Right: 3D Layout for power amplifier from schematic shown