Create RF Objects
Construct a New Object
You can create any
by calling the object constructor. You can create an
by fitting a rational function to passive component data.
This section contains the following topics:
Call the Object Constructor
To create a new RF object with default property values, you call the object constructor without any arguments:
h = objecttype.objectname
his the handle to the new object.
is the object type (
is the object name.
For example, to create an RLCG transmission line object, type:
h = rfckt.rlcgline
because the RLCG transmission line object is a circuit (
The following code illustrates how to call the object constructor
to create a microstrip transmission line object with default property
values. The output
t1 is the handle of the newly
created transmission line object.
t1 = rfckt.microstrip
RF Toolbox™ software lists the properties of the transmission line you created along with the associated default property values.
t1 = Name: 'Microstrip Transmission Line' nPort: 2 AnalyzedResult:  LineLength: 0.0100 StubMode: 'NotAStub' Termination: 'NotApplicable' Width: 6.0000e-004 Height: 6.3500e-004 Thickness: 5.0000e-006 EpsilonR: 9.8000 SigmaCond: Inf LossTangent: 0
The reference page describes these properties in detail,
Fit a Rational Function to Passive Component Data
You can create a model object by fitting a rational function to passive component data. You use this approach to create a model object that represents one of the following using a rational function:
A circuit object that you created and analyzed.
Data that you imported from a file.
For more information, see Fit Model Object to Circuit Object Data.
Copy an Existing Object
You can create a new object with the same property values as an existing object by using the
copy function to copy the existing
object. This function is useful if you have an object that is similar to one you
want to create.
t2 = copy(t1);
creates a new object,
t2, which has the same
property values as the microstrip transmission line object,
You can later change specific property values for this copy. For information on modifying object properties, see Specify or Import Component Data.
t2 = t1 copies
only the object handle and does not create a new object.