help center help center

circuit object -凯发k8网页登录

circuit object

description

use circuit object to build a circuit object which can contain elements like resistor, capacitor, and inductor.

creation

syntax

cktobj = circuit

cktobj = circuit(cktname)

cktobj = circuit([elem1,...,elemn])

cktobj = circuit([elem1,...,elemn],cktname)

cktobj = circuit(rfb)

cktobj = circuit(rfb,cktname)

description

cktobj = circuit creates a circuit object cktobj with a default name.

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

cktobj = circuit([elem1,...,elemn]) creates a circuit object cktobj by cascading the specified 2-port elements.

cktobj = circuit([elem1,...,elemn],cktname) creates a cascaded circuit object cktobj with the name, cktname.

cktobj = circuit(rfb) creates a circuit object cktobj by cascading the elements in the rf object, rfb.

cktobj = circuit(rfb,cktname) creates a circuit object cktobj by cascading the elements in the rf object, rfb, using name, cktname.

input arguments

`elem1,...,elemn` — 2-port rf elements
character vector

2-port rf elements, specified as character vectors. the possible elements are , , and

`rfb` — rf budget object
object handle

rf budget object, specified as an object handle.

properties

`name` — object name
`'unnamed'` (default) | character vector

name of circuit, specified as a character vector. default name is 'unnamed'. two circuit elements attached together or belonging to the same circuit cannot have the same name

data types: char | string

`elements` — heterogeneous array of elements in circuit
`resistor` object | `capacitor` object | `inductor` object | `lcladder` object | `nport` object | `modulator` object | `rffilter` object | `amplifier` object

heterogeneous array of elements present in the circuit, specified as any one of the following objects: , , , , , , , and objects.

data types: char | string

`elementnames` — name of elements in the circuit
cell vector

name of elements in the circuit, specified as a vector of cell vector. the possible elements here are resistor, capacitor, inductor, and circuit.

data types: char | string

`terminals` — names of terminals in the circuit
cell vector

names of terminals in the circuit, specified as a cell vector. use or function to define the terminals. the terminals of the circuit are only displayed once it is defined.

data types: char | string

`ports` — names of ports in a circuit
character vector

names of ports in a circuit specified as a character vector. use function to define the ports. the ports of the circuit are only displayed once it is defined.

data types: char | string

`nodes` — list of nodes defined in circuit
vector of integers

list of nodes defined in the circuit, specified as a vector of integers. these nodes are created when a new element is attached to the circuit.

data types: double

`parentpath` — full path of parent circuit
character vector

full path of parent circuit, specified as a character vector. this path appears only once the child circuit is added to the parent circuit.

data types: char | string

`parentnodes` — nodes of parent circuit
vector of integers.

nodes of parent circuit, specified as a vector of integers. this vector of integers is the same length as the terminals property. this property is read-only and appears only after the child circuit is added to the parent circuit.

data types: double

object functions

`sparameters`	calculate s-parameters for rf data, network, circuit, and matching network objects
	group delay of s-parameter object or rf filter object or rf toolbox circuit object
	insert circuit element or circuit object into circuit
	delete circuit object and decouple its elements
	set ports of circuit object
	set terminals of circuit object
	create copy of existing circuit element or circuit object
	convert lumped element circuit to distributed element circuit using richards' transformation

examples

create circuit with elements and terminals

create a circuit called new_circuit. add a resistor and capacitor to the circuit. set the terminals and display the results.

hckt = circuit('new_circuit1');
hc1= add(hckt,[1 2],capacitor(3e-9));
hr1 = add(hckt,[2 3],resistor(100));
setterminals (hckt,[1 3]);
disp(hckt)

  circuit: circuit element
    elementnames: {'c'  'r'}
        elements: [1x2 rf.internal.circuit.rlc]
           nodes: [1 2 3]
            name: 'new_circuit1'
       terminals: {'t1'  't2'}

create circuit with two parallel elements

create a circuit called new_circuit. add a capacitor and inductor parallel to the circuit.

hckt = circuit('new_circuit');
hc = add(hckt,[1 2],capacitor(1e-12));
hl = add(hckt,[1 2],inductor(1e-9));
disp(hckt)

  circuit: circuit element
    elementnames: {'c'  'l'}
        elements: [1x2 rf.internal.circuit.rlc]
           nodes: [1 2]
            name: 'new_circuit'

version history

introduced in r2013b

see also

| | |

topics

mos interconnect and crosstalk