rfparam

Extract vector of network parameters

Syntax

n_ij = rfparam(hnet,i,j)

abcd_vector = rfparam(habcd,abcdflag)

Description

n_ij = rfparam(hnet,i,j) extracts the network parameter vector (i,j) from the network parameter object, hnet.

abcd_vector = rfparam(habcd,abcdflag) extracts the A, B, C, or D vector from ABCD-parameter object, habcd.

Examples

Create Data Vector From S-Parameter Object

Read in the file default.s2p into an sparameters object and get the S21 value.

S = sparameters('default.s2p');
s21 = rfparam(S,2,1)

s21 = 191×1 complex

  -0.6857 + 1.7827i
  -0.6560 + 1.7980i
  -0.6262 + 1.8131i
  -0.5963 + 1.8278i
  -0.5664 + 1.8422i
  -0.5363 + 1.8563i
  -0.5062 + 1.8700i
  -0.4760 + 1.8835i
  -0.4457 + 1.8966i
  -0.4152 + 1.9094i
  -0.3847 + 1.9219i
  -0.3542 + 1.9339i
  -0.3236 + 1.9455i
  -0.2930 + 1.9566i
  -0.2623 + 1.9674i
      ⋮

Input Arguments

abcdflag — ABCD-parameter index

'A' | 'B' | 'C' | 'D'

Flag that determines which ABCD parameters the function extracts, specified as 'A', 'B', 'C', or 'D'.

habcd — 2-port ABCD parameters

ABCD parameter object

2-port ABCD parameters, specified as an RF Toolbox™ ABCD parameter object. When you specify abcdflag, you must also specify an ABCD parameter object.

hnet — Network parameters

network parameter object

Network parameters, specified as an RF Toolbox network parameter object.

i — Row index

positive integer

Row index of data to extract, specified as a positive integer.

j — Column index

positive integer

Column index of data to extract, specified as a positive integer.

Output Arguments

n_ij — Network parameters (i, j)

vector

Network parameters (i, j), returned as a vector. The i and j input arguments determine which parameters the function returns.

Example: S_21 = rfparam(hs,2,1)

abcd_vector — A, B, C, or D- parameters

vector

A, B, C, or D- parameters, returned as a vector. The abcdflag input argument determines which parameters the function returns. The function supports only 2-port ABCD parameters; thus, the output is always a vector.

Example: a_vector = rfparam(habcd,'A');

Version History

Introduced before R2006a