主要内容

rfelement

Generic RF element object

expand all in page

Description

Use therfelementobject to create a generic RF element. An RF element is a 2–port RF circuit object. You can use this element in therfbudget对象和circuit目的。

Creation

Syntax

rfel = rfelement
rfel = rfelement(Name,Value)

Description

example

rfel = rfelementcreates an RF element object with default property values.

example

rfel = rfelement(Name,Value)使用一个或多个名称值对设置属性。您可以指定多个名称值对。将每个属性名称包装在报价中。

Properties

expand all

Name given to identify rf element, specified as a character vector. All names must be valid MATLAB®可变名称。

Example:'Name','rfel'

Example:rfel.Name = 'rfel'

Available power gain, specified as a scalar in dB.

Example:“获得”,10

Example:rfel.Gain = 10

噪声图, specified as a real finite nonnegative scalar dB.

Example:'nf',-10

Example:rfel.NF = -10

Second -order output-referred intercept point, specified as a real scalar in dBm.

Example:'OIP2',8

Example:放大器。OIP2= 8

第三阶输出引用截距点, specified as a real scalar in dBm.

Example:'oip3',10

Example:放大器.OIP3 = 10

输入阻抗，在欧姆中指定为正真实部分有限标量。您也可以使用具有积极实际部分的复杂值。

Example:'Zin',40

Example:rfel.zin = 40

Output impedance, specified as a scalar in Ohms. You can also use a complex value with a positive real part.

Example:'Zout',40

Example:rfel.zout = 40

端口数，指定为标量整数。此属性仅阅读。

Names of port terminals, specified as a cell vector. This property is read-only.

Object Functions

clone 创建现有电路元件或电路对象的副本

Examples

collapse all

打开实时脚本

创建一个rfelement对象，增益为10 dB，噪声图为3 dB，而OIP3（输出三阶截距）为2 dbm。

r = rfelement(“获得”,10,'nf'，3，'oip3',2)
r = rfelement: RF element Name: 'RFelement' Gain: 10 NF: 3 OIP2: Inf OIP3: 2 Zin: 50 Zout: 50 NumPorts: 2 Terminals: {'p1+' 'p2+' 'p1-' 'p2-'}
打开实时脚本

Create an rf element with a gain of 4 dB. Create another rf element with an output third-order intercept(OIP3) of 13 dBm.

rfel1 = rfelement(“获得”,4); rfel2 = rfelement('oip3'，13）;

使用上述RF元素构建2端口电路。

c = circuit([rfel1 rfel2])
c = circuit: Circuit element ElementNames: {'RFelement' 'RFelement_1'} Elements: [1x2 rfelement] Nodes: [0 1 2 3] Name: 'unnamed' NumPorts: 2 Terminals: {'p1+' 'p2+' 'p1-' 'p2-'}
打开实时脚本

Create an amplifier with a gain of 4 dB.

a = amplifier(“获得”,4);

使用13 dBm的OIP3创建一个调制器。

m = modulator('oip3'，13）;

Create an nport usingpassive.s2p.

n = nport('passive.s2p');

Create an rf element with a gain of 10 dB.

r = rfelement(“获得”,10);

以2.1 GHz的输入频率，-30 dBM的可用输入功率和10 MHz的带宽计算一系列RF元件的RF预算。

b = rfbudget([a m r n],2.1e9,-30,10e6)
b = rfbudget with properties: Elements: [1x4 rf.internal.rfbudget.Element] InputFrequency: 2.1 GHz AvailableInputPower: -30 dBm SignalBandwidth: 10 MHz Solver: Friis AutoUpdate: true Analysis Results OutputFrequency: (GHz) [ 2.1 3.1 3.1 3.1] OutputPower: (dBm) [ -26 -26 -16 -20.6] TransducerGain: (dB) [ 4 4 14 9.4] NF: (dB) [ 0 0 0 0.1392] IIP2: (dBm) [] OIP2: (dBm) [] IIP3: (dBm) [ Inf 9 9 9] OIP3: (dBm) [ Inf 13 23 18.4] SNR: (dB) [73.98 73.98 73.98 73.84]

输入showcommand at the command window to display the analysis in theRF预算分析仪应用程序。

show(b)

Version History

Introduced in R2017a

See Also

|||