SMP Calibration Kits - Spectrum Elektrotechnik GmbH

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Calibration Kits10INTRODUCTION: Vector Network Analyzers are commonly used to accurately determinethe RF Characteristics of microwave components. Accurate Testing of microwave circuitsmeans eliminating measurement errors and ensuring repeatable results. This is only possiblewhen the network analyzers can be calibrated with known and true calibration standards.These standards are not to be subjected to any kind of limitations, they must rather be designedto perfection. As Network Analyzers do have the ability to reduce error terms to negligiblevalues, they depend on the quality and integrity of the Calibration Standards.METHODOLOGY: Two different techniques are commonly known for coaxial calibration,the Open-Short-Load-Through Calibration Method , and the Line Reflective Line (LRL)Calibration Method, also recognized as Through Reflective Line (TRL).OPEN-SHORT-LOAD-THROUGH CALIBRATION: This method uses as knownStandards, Opens, Shorts and Loads. The Load can be either a sliding or a fixed broadbandload. The Kits supplied, can be divided into three groups: The Standard Calibration Kit, theExpanded Calibration Kit, and the Professional Calibration Kit. The Instrument Cases for allthree of these Calibration Kits are identical. The customer may start with the StandardCalibration Kit and fill the empty spots at a later stage, to end up with an Expanded, or eventhe Professional Calibration Kit.The Kits, as suggested for Hewlett Packard and Wiltron,do differ slightly in the number of components supplied, as necessary for the different calibrationsequences.STANDARD OPEN-SHORT-LOAD-THROUGH CALIBRATION KIT: It contains allthe components needed for calibration in the subject connector series, Opens, Shorts, BroadbandLoads, and the Software Configuration Medium.EXPANDED OPEN-SHORT-LOAD-THROUGH CALIBRATION KIT: Besides thecomponents supplied with the Standard Calibration Kit, a set of interface gauges for centerconductor location dimensions, calibration blocks for zeroing the gauges, wrenches, and atorque wrench are added.PROFESSIONAL OPEN-SHORT-LOAD-THROUGH CALIBRATION KIT: Additionalto the components supplied with the Expanded Calibration Kit, the sets of interface gaugesand calibration blocks are completed for measuring further also certain critical outer conductordimensions. A set of thread limit gauges for checking the connector and coupling nut threadsis supplied as well. Four empty spaces can be filled with optional adapters, individually to be specified.LRL / TRL KIT: The Line Reflective Line (LRL), or Through Reflective Line Methods areusing Shorts and two different adapter lengths. Spectrum Elektrotechnik GmbH has developeda complete line of Components, as needed for proper and consistent LRL / TRL calibration.The LRL / TRL Components are true 50 Ohm lines. The adapters are not using any supportingmaterial between center contact and outer conductor. Outer conductors and the sets of centercontacts are supplied separately. The set of center contacts contains all lengths as needed forSpectrum Elektrotechnik GmbH P.O. Box 45 05 33, 80905 Munich, Germany Tel. (89) 354 804-0, Fax (89) 354 804-90 (Country Code: 49)kits.pm6
kits.pm6Calibration Kitsadjusting the adjacent in-specification connector interfaces that is usually recessed, as allowed,to perfect 50 Ohms lines. So length adjustments of 0.0004 inches (0.01mm) can be achieved,when all center contacts have been purchased. A Center Contact Insertion Tool helps to alignand connect the center contact.The Calibration Kits are delivered with a disc supplying data on the properties of the Kits'components. Kits are available for the Network Analyzers of Hewlett Packard and Wiltronand can be divided into two groups: The Standard LRL Calibration Kit, and the ProfessionalLRL Calibration Kit. The Instrument Cases for both of these Calibration Kits are identical.The customer may start with the Standard Calibration Kit and fill the empty spots at a laterstage, to end up with the Professional Calibration Kit.STANDARD LRL CALIBRATION KIT: A Calibration Kit contains as a minimum twoShorts (male and female), two Throughlines each (female/female, male/female, male/male) indifferent lengths and a Disk for the Calibration Characteristics. The Disc is supplied either forthe Scalar Network Analyzers of Hewlett Packard, or Wiltron, and is ready to be used.PROFESSIONAL LRL CALIBRATION KIT: Besides the components, as supplied withthe Standard Kit, it also contains Interface Gauges for measuring the center condutor location,Calibration Blocks for those Interface Gauges, and a Torque Wrench.VERIFICATION KITS: To verify that the network analyzer system is working properly,the measuring of known devices, other than the calibration standards, is a straightforwardmethod. Spectrum Elektrotechnik GmbH is offering Verification Kits that consist ofprecision airlines and mismatch airlines. Traceable measurement data are shipped with each kit.TEST CABLES: Vector network analizers require electrically stable cable assemblies formeasurement in very critical areas, such as Phase, Amplitude and VSWR. Cables have tomaintain calibration data, even when subjected to bending and twisting which can introducedistorting parameters. The cable assembly needs to be flexible without being flaccid. TheCables of Types 16, 18 and 22, as described in the Phase Stable Cable Assemblies’ Sectionare ideal for this application. One end of the Assembly will usually be terminated with anNMD 2.4mm, 2.9mm, or 3.5mm, 7mm or N connector, as needed for connecting directlywith the RF output of the network analyzer. These NMD Connectors are designed with alarger than standard coupling nut for greater stability. The other end of the ANA - Assemblycan be terminated with the proper Test Connector, as needed in the setup.ADAPTERS: Spectrum Elektrotechnik GmbH manufactures a large variety of adapters. Whereexisting test cables are to be used, between series instrument-grade adapters to those 2.4mm,2.9mm, 3.5mm, 7mm, or N-type test port or ANA cable connectors are offered. NMDInstrument-Grade Adapters are supplied when the network analizer test port needs to bechanged to another connector series. The NMD Adapters are designed with this larger thanstandard coupling nut for greater stability.Spectrum Elektrotechnik GmbH P.O. Box 45 05 33, 80905 Munich, Germany Tel. (89) 354 804-0, Fax (89) 354 804-90 (Country Code: 49)11
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