Matching Network Design

Design narrowband matching networks

Matching network designs a set of circuits that match the impedance of a given source to the impedance of a give load at a specified center frequency.

Apps

Matching Network Designer

Design, visualize, and compare matching networks for one-port load

Objects

matchingnetwork Create matching network for 1-port network and generate circuit object

Functions

`addEvaluationParameter`	Adds performance goal for sort, pass, or fail matching network design
`circuitDescriptions`	Tables describing each created matching network's topology and performance
`getEvaluationParameters`	Table of evaluation parameters currently used to rank and pass or fail matching network designs
`clearEvaluationParameter`	Delete one or more performance goals
`exportCircuits`	Select and export generated matching networks as circuit objects from an existing matching network object
`rfplot`	Plot input reflection coefficient and transducer gain of matching network
`smithplot`	Plot measurement data on Smith chart
`sparameters`	Calculate S-parameters for RF data, network, circuit, and matching network objects

Featured Examples

Impedance Matching of Small Monopole Antenna

Design a double tuning L-section matching network between a resistive source and capacitive load in the form of a small monopole by using the matchingnetwork object. The L-section consists of two inductors. The network achieves conjugate match and guarantees maximum power transfer at a single frequency. This example requires the following product:

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Designing Matching Networks for Low Noise Amplifiers

Verify the design of input and output matching networks for a Low Noise Amplifier (LNA) using gain and noise figure plot.

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Designing Matching Networks (Part 2: Single Stub Transmission Lines)

Use the RF Toolbox to determine the input and output matching networks that maximize power delivered to a 50-Ohm load and system. Designing input and output matching networks is an important part of amplifier design. This example first calculates the reflection factors for simultaneous conjugate match and then determines the placement of a shunt stub in each matching network at a specified frequency. Finally, the example cascades the matching networks with the amplifier and plots the results.

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Design Matching Networks for Passive Multiport Network

Design matching networks for 16-port passive network at 39 GHz for 5G mmWave systems. Matching networks are designed independently for each port, and each generated matching network is intended to function between two 1-port terminations.

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Design Broadband Matching Networks for Antennas

Design a broadband matching network between a resistive source and inductive load using optimization with direct search methods.

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Design Broadband Matching Networks for Amplifier

Design broadband matching networks for a low noise amplifier (LNA).

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