Agilent Technologies 8719ET, ES, 8720ET, 8722ET quick start Measuring Other Reﬂection Characteristics

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Quick Start: Learning How to Make Measurements

Learning to Make Reﬂection Measurements

Measuring Other Reﬂection Characteristics

You can derive several important ﬁlter parameters from the measurement shown on the analyzer display. The following set of procedures is a continuation of the previous reﬂection measurement procedure.

Measuring Reﬂection Coefﬁcient

1.Press Save/Recall RECALL STATE to recall the calibrated reﬂection measurement that you saved earlier in this procedure.

2.Press Format LIN MAG Scale Ref AUTO SCALE so the analyzer shows the same data in terms of reﬂection coefﬁcient, as shown in Figure 2-12.

The units "mU" displayed on the analyzer are "milli-units," where "units" or "U" is used to indicate that the parameter is unitless (as opposed to dB in log magnitude format). For example, 200 mUnits = 0.2.

Figure 2-12 Example Reﬂection Coefﬁcient Measurement Trace

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Chapter 2

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Contents Part Number Print Date February Installation and Quick Start GuidePage Certiﬁcation General Safety Considerations How to Use This Guide Documentation Map Contents Installing Your Analyzer Introduction Verify the Shipment Item Number Part Number Description Analyzer Front Panel Familiarize Yourself with the Analyzer Front and Rear PanelsTest Sequence Analyzer Rear PanelMeet Electrical and Environmental Requirements Meet Electrical and Environmental Requirements Conﬁgure the Analyzer To Conﬁgure the Standard Analyzer To Conﬁgure the Analyzer with Printers or Plotters Plotter Port Conﬁgure the Analyzer Thinkjet Deskjet SET Clock To Conﬁgure the Analyzer for Bench Top or Rack Mount Use To Attach Front Handles to the Analyzer Standard Conﬁgure the Analyzer Conﬁgure the Analyzer Verify the Analyzer Operation To View the Installed Options To Initiate the Analyzer Self-Test To Run the Operators Check Service Menu TestsTransmissn To Test the Transmission ModeMeas Reﬂ REV S22 B/R To Test the Reﬂection ModeEquipment Eeprom Backup Disk ProcedureBack Up the Eeprom Disk DescriptionBack Up the Eeprom Disk Quick Start Learning How to Make Measurements Quick Start Learning How to Make Measurements Analyzer Front Panel Analyzer Front PanelAnalyzer Front Panel Output measurement results Measurement ProcedureMake a measurement calibration Measure the deviceDevice Connections for a Transmission Measurement Learning to Make Transmission MeasurementsConnections for a Thru Calibration Standard Perform a measurement calibrationExample Measurement of Insertion Loss Press Return Define DISK-SAVE Example Measurement of 3 dB Bandwidth Measuring Other Transmission CharacteristicsExample Measurement of Out-of-Band Rejection Measuring Out-of-Band RejectionExample Measurement of Passband Flatness or Ripple Measuring Passband Flatness or RippleLearning to Make Reﬂection Measurements = Γ= 1 + ρ / 1 − ρ Connections for Reﬂection Measurements Make a measurement calibration 10 Example Measurement of Return Loss Measuring Return Loss11 Example Measurement Title Measuring Reﬂection Coefﬁcient Measuring Other Reﬂection Characteristics13 Example Standing-Wave-Ratio Measurement Trace Measuring Standing Wave Ratio SWRMeasuring S11 and S22 or Reﬂection in a Polar Format Measuring S11 and S22 or Reﬂection in a Smith Chart Format 15 Example Impedance Measurement Trace If You Encounter a Problem Power-Up ProblemsIf the analyzer display does not light Data Entry Problems If there is no RF signal at the front-panel portNo RF Output If You Encounter a Problem European Field Operations Agilent Technologies Sales and Service OfﬁcesIndex Index