Anritsu ME7840A S-Parameters, Operations, Measurement, ME 7840A OMM, S-Parametertests, Procedure

S-PARAMETERS OPERATIONS, MEASUREMENT

5-5S-PARAMETER TESTS:	This test measures the scattering parameters (S-parameters). The test
S21, S11, S22, S12, ALL	module comprises six tests: S11, S12, S21, S22, and ALL. (The K Factors
	test is described in paragraph 5-6.) In each case, the measurement
	screens are the similar. This procedure will present a test screen for the
	“S21” measurement and will describe certain differences at the end of the
	procedure.
	Procedure.
		Prepare the ME7840A as shown in Chapter 3.
		Enter the appropriate test values in the displayed
		User Input screen. The input fields are described
		below: The inputs required for this test are de-
		scribed below.
		￿ S-Parameter:Drop down options. Set to S21 for
		this procedure. Other selections include S11, S12,
		S22, ALL, and K Factor (paragraph 5-6).
		￿ Data Points: Drop down options ￿ number of data
		points in frequency sweep.
		￿ Frequency 1 (MHz): Lower frequency or start fre-
		quency.
		￿ Frequency 2 (MHz): Upper frequency or stop fre-
		quency.
		￿ Input Power (dBm):Input power level, in dBm.
		￿ IF Bandwidth (Hz):Intermediate frequency band-
		width for test, in Hertz.
		￿ Test Set Setting: Byte value for setting test set
		attenuation and source switch (below).
			Internal Source	Value	External Source	Value
			0 dB	8	0 dB	0
			10 dB	9	10 dB	1
			20 dB	10	20 dB	2
			30 dB	11	30 dB	3
			40 dB	12	40 dB	4
			50 dB	13	50 dB	5
			60 dB	14	60 dB	6
			70 dB	15	70 dB	7

5-4 ME 7840A OMM