Agilent PN 8510-16 - Manuals

Page 2 - Introduction; capable of setting

2 Introduction Designers and manufacturers of active devicesoften need to control the power level at the testport 1 of their power-sensitive devices, but find dif- ficulty in overcoming insertion losses. The insertionlosses occur as a result of connecting componentsin the measurement path between th...

Page 3 - System Configuration; power sensor

3 System Configuration The basic 8510C measurement system configura-tion needed for test port f latness correction isshown in Figure 1. A single channel power metersuch as the Agilent 437B, E4418A, or E4418B isrequired, along with a compatible sensor, for per-forming the power f latness calibration....

Page 4 - Flatness-Correction Operation; Power

4 Flatness-Correction Operation The basic setup procedure to obtain f lat test portoutput power is illustrated in Table 1. To simplifythe execution of the procedure, the front panelhardkeys are enclosed in [brackets]. The softkeysare enclosed in {braces}. Table 2 provides the pro-cedure for setting ...

Page 5 - Table 1. Flatness-correction calibration procedure

5 Table 1. Flatness-correction calibration procedure 8510C Keystrokes Description Set up the power meter (see Table 2) For proper operation, the E4418B must be set up before initiating the flatness-correction routine. See Table 2 for specific instructions. Verify the power meter's address on the 851...

Page 6 - Table 2. Agilent E4418B power meter setup

6 Table 2. Agilent E4418B power meter setup E4418B Keystrokes Description Preset and zero the power meter [PRESET/LOCAL] Return the power meter to a known state. {CONFIRM}[ZERO/CAL]{ZERO} Set up the 437B emulation on the power meter [SYSTEM/INPUTS] The 437B command set must be activated in order to ...

Page 7 - Power control with flatness correction; Operational Considerations; Calibration time; Number of Points

7 The following error messages may occur whileattempting to enable the f latness correction and/orreducing the test port power level: • If f latness correction is enabled before reducing the test port power level, IF Overload or Source 1 Warning—RF Unleveled may be displayed on the analyzer as the s...

Page 9 - Using test port 1 calibrations on test port 2

9 Using test port 1 calibrations on test port 2 In most cases, port 1 will be the input port of theDUT. When port 2 must be used as the input portto the device, the user may choose to use a port 1f latness-correction calibration on port 2 since theport 1 and port 2 signal paths are symmetrical. 1 Fi...

Page 10 - Practical Application Examples

10 Practical Application Examples Absolute output power measurements with flatness correction One benefit of the f latness-correction capability isthe ability to measure the absolute output power ofactive devices. Since the input power level to theDUT is kept constant, the magnitude offset featureof...

Page 11 - Amplifier measurement example

11 Amplifier measurement example Step-by-step instructions for setting up and apply-ing f latness corrections for the measurement of an amplifier are shown in Table 7. Gain, absolute output power, and gain compression measurementsprocedures are covered. For more information onmeasuring amplifiers, r...