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System and method for creating a single port interface for simulating bidirectional signals in circuits using available circuit simulation standards

A circuit simulation and two-way signal technology, applied in two-way transmission, electromagnetic receiver, CAD circuit design, etc., can solve different problems

Pending Publication Date: 2021-02-12
ANSYS LUMERICAL知识产权有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rather, this is a result of trying to represent the physical waveguide as a multi-wire bus, where different wires are used for forward and backward signals, which creates very different problems than those faced by interfaces such as MDI / MDI-X

Method used

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  • System and method for creating a single port interface for simulating bidirectional signals in circuits using available circuit simulation standards
  • System and method for creating a single port interface for simulating bidirectional signals in circuits using available circuit simulation standards
  • System and method for creating a single port interface for simulating bidirectional signals in circuits using available circuit simulation standards

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Experimental program
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Embodiment Construction

[0029] It is recognized that if the designer accidentally connects the wrong port type, it will cause the simulation to fail and should ideally be prohibited. There are several possible solutions, each with drawbacks, as shown below.

[0030] One possible solution is to mandate that waveguides use only one port type (eg, left type) and all other components use another port type (eg, right type). This solves many simple use cases, as elements are usually connected by waveguides, however, this would prohibit the direct connection normally made by any other elements such as waveguide bends or tapered tubes. Therefore, unnecessary waveguides need to be introduced between components, or zero-length waveguides need to be introduced in schematic diagrams which do not represent artificial ones of physical components.

[0031] Another possible solution is to create four different waveguide types for all combinations of port types. These waveguides can be used as "crossover" elements ...

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Abstract

A system and method are provided for simulating circuits that transmit bidirectional signals between some ports using simulators designed originally for electrical circuits and systems, that eliminatethe need for different port interfaces. The system and method can be applied to simulate photonic circuits either standalone or integrated with electrical circuits and systems. In one method implemented by the system potential and flow representations, available for example in Verilog-A simulators, are used to create bidirectional signals on a single bus line to transmit optical signals. In another method implemented by the system, the system auto-configures each optical port type as left or right at runtime or during a pre- simulation initialization to allow for bidirectional signals with asingle port interface.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 776,067, filed December 6, 2018, which is incorporated herein by reference. technical field [0003] The following relates to systems and methods for creating single-port interfaces for simulating bidirectional signals in circuits, including circuits with photonic elements and photonic circuits, using available circuit simulation standards. Background technique [0004] It is well known that behavioral models of photonic components can be described using, for example, the Verilog-A modeling language (a continuous-time subset of Verilog-AMS). The standard approach is to represent an optical connection using a bus that supports multiple analog signals. For example, in systems where the waveguide is a single mode, two analog signals are required to represent the forward-propagating envelope of the optical signal at a given carrier frequency. Since ...

Claims

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Application Information

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IPC IPC(8): G01R31/3181G01M11/00G06F30/20H04B10/67G06F30/32G02B27/00H04B10/50
CPCG06F30/36G06F13/382G06F13/38G01M11/33H04B10/2589G06F30/20G06F30/32G02B27/0012H04B10/50H04B10/67
Inventor J·F·庞陆泽钦A·R·瑞德V·帕卡度尼锺瑞峰
Owner ANSYS LUMERICAL知识产权有限责任公司
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