circuit

Creates a circuit diagram object.

Library

EngeeRF

Syntax

Function call

cktobj = circuit() — creates a schema object cktobj with the default name.

cktobj = circuit(cktname) — creates a schema object cktobj with a name cktname.

cktobj = circuit(elem1,…,elemN) — creates a schema object cktobj by cascading the specified two-port elements.

cktobj = circuit(elem1,…,elemN, cktname) — creates a cascade scheme object cktobj with a name cktname.

Arguments

Input arguments

# cktname — schema name

+ "unnamed" (by default) | character vector

Details

The name of the schema, specified as a vector of symbols.

# elem1,…,elemN — dual-port RF elements

+ character vector

Details

Two-port radio frequency elements specified as character vectors. Possible elements: amplifier amplifier, n-port nport and the modulator modulator.

Output arguments

# cktobj — schema object

+ scalar descriptor object

Details

The schema object. The circuit may contain elements such as a resistor, a capacitor, and an inductor.

The schema object contains the following properties:

Name — the name of the scheme in the form of a symbolic vector, for example "new_circuit1".
Elements — an array of circuit elements present in the circuit. The elements of the scheme can be: amplifier, resistor, capacitor, inductor and nport.
ElementNames — names of the circuit elements in the form of a vector of cells. The circuit elements can be a resistor, a capacitor, an inductor and a circuit, for example ("C", "L").
Terminals — the names of the terminals in the circuit in the form of a vector of cells. To determine the terminals, use the function setports or setterminals. The terminals of the circuit are displayed only after they are identified. For example ("t1", "t2").
Ports — the names of the ports in the scheme in the form of a character vector. To determine the ports, use the function setports. The schema ports are displayed only after they are defined. For example "p1".
Nodes — a list of nodes in the diagram in the form of a vector of integers. These nodes are created when a new element is added to the schema. For example [1, 2].
ParentPath — the full path to the parent schema to which the schema object belongs, in the form of a character vector. This path is displayed only after adding the child schema to the parent schema. For example "example".
ParentNodes — nodes of the parent schema in the form of a vector of integers. This vector of integers has the same length as the property Terminals. This property is read-only and is displayed only after adding the child schema to the parent schema.

Examples

Creating a circuit with elements and terminals

Details

Create a schema with the name "new_circuit1". Add a resistor and a capacitor to the circuit, adjust the terminals. Let’s derive the properties of the scheme.

using EngeeRF
hckt = circuit("new_circuit1")
hC1= add(hckt,[1 2],capacitor(3e-9))
hR1 = add(hckt,[2 3],resistor(100))
setterminals(hckt,[1 3])
println(hckt)

circuit(ElementNames = ("C", "R"), Terminals = ("t1", "t2"), Name = "new_circuit1", Elements = Vector{EngeeRF.DomainRF.DomainObjectRF}, Nodes = [1, 2, 3], TerminalNodes = [1, 3])

Creating a circuit with parallel elements

Details

Create a schema with the name "new_circuit". We will add a capacitor and an inductor in parallel to it.

using EngeeRF

hckt = circuit("new_circuit")
hC = add(hckt,[1 2],capacitor(1e-12))
hL = add(hckt,[1 2],inductor(1e-9))
println(hckt)

circuit(ElementNames = ("C", "L"), Name = "new_circuit", Elements = Vector{EngeeRF.DomainRF.DomainObjectRF}, Nodes = [1, 2])