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Related Manuals for HP 85052c
Summary of Contents for HP 85052c
- Page 1 User’ s Guide HEWLETT PACKARD HP 85052C Precision Calibration Kit...
- Page 2 851 O-8A CARE CARD U s i n g t h e H P 85052C O p e r a t i n g a n d H P 85052c S e r v i c e M a n u a l...
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Page 3: Table Of Contents
C O N T E N T S T A B L E Chapter 1 Introduction to the Calibration Kit Calibration Kit Components Air Lines O-2 GHz Loads Reflect Standards Isolation Standards Precision Adapters Tools Chapter 2 Performing a TRL 2-Port Measurement Calibration Electrostatic Discharge Clean and Inspect Cleaning... - Page 4 I 0 N What’ s in this Guide Th*IS guide describes how to use the HP 85052C calibration kit with the HP 8510 vector network analyzer to perform the TRL 2-Port measurement calibration technique, and how to evaluate the results of the calibration.
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Page 5: Introduction To The Calibration Kit
- HP 85052C Precision Calibration Kit solution. All male connectors in this kit are HP precision with care- fully controlled dimensions. All female connectors are of the HP precision slotless (PSC-3.5) type. These connectors are designed for long repeatability when used with appro- priate technique. -
Page 6: Calibration Kit Components
Calibration Kit Components The HP 85052C 3.5 mm Precision Calibration Kit contains components useful for several different calibration tech- niques. The parts used for the TRL 2-Port calibration are: Longer precision air line for 2 to 7 GHz Shorter precision air line for 7 to 32 GHz... - Page 7 Each air line consists of a separate outer conductor and center conductor and includes its own tool used for installing and removing the parts from the test port. Both are insertable. Each has a male end and a female end. The male end of the air line fits into the installation tool.
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Page 8: Reflect Standards
Reflect Standards In this TRL 2-Port calibration, the reflect standards are identical short circuits with one connected to Port 1 and one to Port 2. The male short circuit and the female short circuit are manufactured to tolerances that assure equivalent responses. - Page 9 Recession Limits The female receptacle recession and the male pin recession, along with other mechanical specifications of Port 1 and Port 2, must be within limits to meet complete measurement specifications. The precision adapters supplied in this kit are manufactured to metrology standards in order to obtain the best measurement accuracy specifications.
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Page 10: Tools
Tools or ue wrench and spanner wrench are included in the At q kit to loosen and tighten the connectors. The small torque wrench is used for the 3.5 mm nuts. The large torque wrench is used for the 20 mm nuts on the precision adapters. -
Page 11: Chapter 2 Performing A Trl 2-Port Measurement Calibration
Performing a TRL Z-Port Measurement Calibration This example describes use of the HP 3.5 mm precision calibration kit to measure an insertable device. When the test device is insertable, the test ports can be connected together to establish the Thru connection during calibration. -
Page 12: Cleaning
A low power magnifier, less than 6x, is adequate to inspect the parts. Do not be concerned with minor defects such as scratches visible only with the magnifier; these will probably not affect performance. If inspection shows moisture, oil, or other residue, clean the parts. When examining the female connector, look at the inner contact to see that the gripping fingers are not bent. -
Page 13: Using Connector Gages
Using Connector Gages Gaging is optional for the precision connectors in this calibration kit if the male and female center conductors are concentric and do not show physical damage. Before Connecting However, due to the large range of dimensions found on most DUT connectors, the DUT connectors must always be inspected and gaged before connecting them to the precision adapters. - Page 14 Repair and Replacement In general, bent or deformed parts cannot be repaired in the field. It is necessary to return the part to an HP service center for repair or replacement. The air line center and outer conductors must be replaced as a set. Refer to the...
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Page 15: Configure Port 1 And Port
Configure Port 1 and Port 2 s frequency range, available cables, operator convenience, and DUT requirements. Following is an example hookup using the two-cable set and two examples using a single cable. The appropriate precision adapters are installed on the ends of the cables and become Port 1 and Port 2. TEST SET TEST SET TEST PORT... -
Page 16: Install Test Port Return Cables
Install Test Port Return Cables When all parts are ready for use, connect the test port extension cables. To connect a cable to the test set: Loosen the test port anti-rotation clamp securing screw and slide the clamp over the cable far enough to provide access to the cable connector. -
Page 17: Air Line Frequency Coverage
Air Line Frequency This illustration shows the frequency range covered by the air line and fixed loads for the Lines part of the TRL 2-Port calibration procedure. If measuring over the entire frequency range, measure the 7-32 Line first, then the 2-7 Line, then the O-2 Loads. -
Page 18: Measure Standards
Measure Standards perform the TRL 2-Port measurement calibration procedure using the HP 85052C 3.5 mm Precision Calibration Kit. The standards are measured in the order: Thru, Note: Reflect, Line, Isolation in order to connect the load standards just once. Press:... -
Page 19: When Stop Frequency Is Greater Than 7 Ghz
If the stop frequency is greater than 7 GHz, install the 7-32 When Stop Frequency is Greater than 7 GHz Move the Port 1 nut to its standard position and carefully insert the air line into the male connector using the installation tool. - Page 20 Tighten finger tight, then use the spanner and torque wrenches to achieve the final torque. Connect Port Press 7-32 LINE. The HP 8510 makes six measurements. All frequencies of the current range are measured, but only data from 7 to 32 GHz is used to compute error coefficients.
- Page 21 Hold the tool close to the connector without squeezing the tool. Carefully pull the assembly away from the connector. Remove the 7-32 Line . Check to see that both the inner and the outer conductors have been removed and are secure in the installation tool.
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Page 22: When Start Frequency Is Less Than 7 Ghz
When Start Frequency is Less Than 7 GHz If the start frequency is less than 7 GHz, install the 2-7 GHz air line as follows: Move the Port 1 nut to its standard position. Carefully insert the air line outer conductor and center pin into the TURN f\ HOLD male connector using the installation tool. - Page 23 Connect Port 2 . Press 2-7 LINE. The HP 8510 makes six measurements. All frequencies of the current range are measured, but only data from 1 GHz to 7 GHz is used to compute error coefficients.
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Page 24: When Start Frequency Is Less Than 2 Ghz
Loads as follows: Connect a fixed load to Port 1 and a fixed load to Port 2. Press O-2 LOADS. The HP 8510 makes six measurements. All frequencies are measured, but only data up to 2 GHz are used. These measurements replace error coefficients obtained from measurement of the 2-7 GHz air line below 2 GHz. -
Page 25: Check The Calibration
Check the Calibration A good first check of the calibration is to measure the transmission and reflection characteristics of the longer air line. Connect the air line between Port 1 and Port 2 and view the Szl magnitude and phase and the S,, magnitude. The air line should exhibit low insertion loss and linear phase. -
Page 26: General Theory
Detailed information about the adapter removal calibration is contained in HP Product Note 8510-13, available from your local HP Sales Office. The previous calibration sequence assumed that the device under test is insertable;... -
Page 27: Adapter Removal Calibration Procedure
Adapter Removal Calibration Procedure Create Cal Set for Port First create the Port 1 calibration set by performing the TRL the adapter connected to Port 2 during the entire procedure. Save the calibration in Cal Set 1. Port 2 Create Cal Set for Port 2 Next create the Port 2 calibration set by performing the TRL 2-Port calibration between Port 2 and the adapter. -
Page 28: Other Calibrations
H A P Other Calibrations Changing the Air Line of your application requires a frequency range slightly Frequency Range beyond the standard frequency range of one of the precision air lines, you may extend the frequency range of one of the air lines in order to accomplish the calibration by connecting only one of the air lines. -
Page 29: Lowband Reflection Procedure
Selecting the Lowband Reflection part of the procedure guides you through these additional steps to measure an open circuit, short circuit, and fixed load at Port 1 and an open circuit, short circuit, and fixed load at Port 2. So, if the start frequency is less than 2 GHz and you wish to use the open/short/load technique for calibration below 2 GHz, then after measuring the Thru, Reflect, Isolation and Line... - Page 30 HEWLETT PACKARD Customer Order Number 85052-90059 Printed in USA April 1995...