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Manuel d’utilisation Agilent Technologies 8510

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Summary
  • Agilent Technologies 8510 - page 1

    Agilent Specifying Calibration Standards for the Agilent 8510 Network Analyzer Application Note 8510-5B Discontinued Product Information — For Support Reference Only — Information herein, may refer to products/services no longer supported. We regret any inconvenience caused by obsolete information. For the latest information on Agilent’ s tes ...

  • Agilent Technologies 8510 - page 2

    2 3 3 3 4 5 5 7 7 8 9 9 9 11 12 12 12 14 14 15 16 16 17 17 17 18 18 18 18 19 19 19 19 19 20 20 20 21 21 22 22 22 23 23 26 29 Introduction Measurement errors Measurement calibration Calibration kit Standard definition Class assignment Modification procedure Select standards Define standards Standard number Standard type Open circuit capacitance: C 0 ...

  • Agilent Technologies 8510 - page 3

    3 Introduction This product note co vers measurement calibration requirements for the Agilent 8510B/C network analyzer . All of t he capabilities described in this note also apply to the A gilent 8510A with t he follo wing ex ceptions: response & isolation calibra- tion; short circuit induct ance; class assignments for f or ward/rev erse isolat ...

  • Agilent Technologies 8510 - page 4

    4 The array coeff icients are computed by measuring a set of “kno wn” devices connected at a f ixed point and solving as the vector difference betw een t he modeled and measured response. The full 2-port er ror model sho wn in F igure 1 is an example of onl y one of t he measurement calibra- tions available with the 8510. The measurement calibr ...

  • Agilent Technologies 8510 - page 5

    5 Standard definition Standard def inition is the process of mathematical- ly modeling the electrical characteristics (delay , attenuation and impedance) of each calibration standard. These electrical characteristics can be mathematically derived fr om t he physical dimen- sions and material of each calibration st andards or from its actual measure ...

  • Agilent Technologies 8510 - page 6

    6 T able 1. Standard definitions table T able 2. Standard class assignments ...

  • Agilent Technologies 8510 - page 7

    7 Modification procedure Calibration kit modification provides the capability to adapt to measurement calibrations in ot her con- nector types or to generat e more precise error models from existing kits. Pr ovided the appropri- ate st andards are a vailable, cal kit modif ication can be used to est ablish a reference plane in the same transmission ...

  • Agilent Technologies 8510 - page 8

    8 Define standards A glossar y of standard definition paramet ers used with t he Agilent 8510 is included in t his section. Each parameter is described and appropriate con- versions are listed f or implementation wit h the 8510. T o illustrat e, a calibration kit f or WR -62 rec- tangular waveguide (operating frequency range 12.4 to 18 GHz) will be ...

  • Agilent Technologies 8510 - page 9

    9 Each standard is described using the St andard Definition Table in accordance with t he 1- or 2- port model. The St andard Definition t able for a wav eguide calibration kit is shown in Table 1. Each standard type (shor t, open, load, thr u, and arbi- trar y impedance) ma y be def ined by the parame- ters as specif ied belo w . • Standard numbe ...

  • Agilent Technologies 8510 - page 10

    10 It is not possible to remov e fringing capacit ance, but the result ant phase shift can be modeled as a function of frequency using C 0 through C 3 (C 0 +C l x f + C 2 x f 2 + C 3 x f 3 ,with units of F(Hz), C 0 (fF), C 1 (10 -27 F/Hz), C 2 (10 -36 F/Hz 2 ) and C 3 (10 -45 F/Hz 3 ), which are the coef ficients for a cubic polynomial that best f ...

  • Agilent Technologies 8510 - page 11

    11 Note In some cases (when the phase response is linear with respect t o frequency) the response of an open can be modeled as an equivalent “incremental” length. This method will serve as a first order appro xima- tion only , but can be useful when dat a or stan- dards f or t he abo ve modeling techniques are not available. F or t he wav eguid ...

  • Agilent Technologies 8510 - page 12

    The inductance as a function of frequency can be modeled by specifying the coeff icients of a third- order polynomial (L 0 + L 1 x f + L 2 x f 2 + L 3 x f 3 ), with units of L 0 (nH), L 1 (10 -24 H/Hz), L 2 (10 -33 H/Hz 2 ) and L 3 (10 -42 H/Hz 3 ). F or t he wav eguide example, the induct ance of the offset shor t circuits is negligible. L 0 t hro ...

  • Agilent Technologies 8510 - page 13

    13 The convention f or def inition of offset delay in wav eguide requires entr y of t he dela y assuming no dispersion. F or waveguide transmission line, the Agilent 8510 calculat es the ef f ects of dispersion as a function of frequency as follo ws: f co = lo wer cutoff frequency f = measurement frequency Note T o assure accurat e definition of of ...

  • Agilent Technologies 8510 - page 14

    14 µ r = relative permeability constant of t he medium (equal to 1.0 in air) ε r = relative permittivity constant of t he medium (equal to 1.000649 in air) D = inside diameter of outer conduct or d = outside diameter of inner conductor The 8510 requires that t he characteristic imped- ance of wav eguide transmission line is assigned to be equal t ...

  • Agilent Technologies 8510 - page 15

    15 Therefore, f or the WR -62 wav eguide st andard defi- nition table, of fset loss of zero ohm/sec is entered for all f our standards. Lower/minimum frequency Lo wer frequency defines t he minimum frequency at which the st andard is to be used for the purposes of calibration. Note When defining coaxial of fset st andards, it ma y be necessar y to ...

  • Agilent Technologies 8510 - page 16

    16 Upper/maximum frequency This specifies t he maximum frequency at which the st andard is valid. In broadband applications, a set of banded standards may be necessary t o pro- vide constant response. For exam ple, coaxial of fset standards (i.e., 1 / 4 λ offset shor t) are generally spec- ified over bandwidths of an octav e or less. Bandwidth spe ...

  • Agilent Technologies 8510 - page 17

    17 Note Mathematical operations on measurements (and display ed dat a) aft er calibration are not corrected for dispersion. Enter W A VEGUIDE int o the st andard definition table for all f our st andards. Standard labels Labels are entered through t he title menu and ma y contain up t o 10 characters. St andard Labels are entered to facilit ate men ...

  • Agilent Technologies 8510 - page 18

    18 S 11 A,B,C and S 22 A,B,C S 11 A, B,C and S 22 A,B,C correspond t o the S 11 and S 22 ref lection calibrations for port 1 and por t 2 respectivel y. These t hree classes are used by the Agilent 8510 t o solv e for the systematic er rors; directivity , source match, and ref lection tracking. The three classes used by the 7-mm cal kit are labeled ...

  • Agilent Technologies 8510 - page 19

    19 TRL Thru TRL Thru cor responds to t he measurement of the S-parameters of a zero-length or shor t thr u connec- tion between port 1 and por t 2. The Thru, Ref lect and Line classes are used ex clusively f or t he three steps of the TRL 2-PORT calibration. T ypically , a “delay/thru” wit h zero (or the smallest) Offset Delay is specified as t ...

  • Agilent Technologies 8510 - page 20

    20 Each adapter is specif ied as a single delay/thr u standard and up to seven standards numbers can be specified int o the adapter class. Standard Class labels Standard Class labels are entered t o facilitat e menu-driven calibration. A label can be an y user- selected ter m which best describes the device or class of devices that the operat or sh ...

  • Agilent Technologies 8510 - page 21

    21 Again, cal kit labels should be chosen t o best describe the calibration devices. The “B.1” default suff ix corresponds t o the kit’s mechanical revision (B) and mathematical revision (1). Note T o prevent confusion, if an y st andard definitions in a calibration kit are modified but a new kit label is not entered, the default label will a ...

  • Agilent Technologies 8510 - page 22

    22 User modified cal kits and Agilent 8510 specifications As noted previously , the result ant accuracy of t he 8510 when used with any calibration kit is depend- ent on ho w well its standards are defined and is verified through measurement of a device with traceable frequency response. The published Measurement Specifications for the 8510 Netw or ...

  • Agilent Technologies 8510 - page 23

    23 Appendix A Calibration kit entry procedure Calibration kit specifications can be ent ered into the A gilent 8510 using the 8510 disk drive, a disk drive connected to the syst em bus, by fr ont panel entr y , or through program control b y an ext ernal controller . Disk procedure This is an import ant f eature since t he 8510 can internally store ...

  • Agilent Technologies 8510 - page 24

    24 Front panel procedure: (P -band waveguide example) 1. Prior to modifying or generating a cal kit, store one or both of t he cal kits in the 8510’s non- volatile memory to a disk. 2. Select CAL menu, MORE. 3. Prepare to modify cal kit 2: press MODIFY 2. 4. T o def ine a standard: press DEFINE STAND ARD. 5. Enable standard no. 1 to be modif ied: ...

  • Agilent Technologies 8510 - page 25

    25 4. Change the class label for S 11 A: LABEL CL ASS, S 11 A, ERASE TITLE. 5. Enter the label of PSHORT 1 by using the knob, the SELECT sof t ke y and t he SP ACE soft k ey. 6. Complete the label entr y procedure: TITLE DONE, L ABEL DONE. F ollow a similar pr ocedure t o enter t he remaining standard classes and labels as shown in the table belo w ...

  • Agilent Technologies 8510 - page 26

    26 Appendix B Dimensional considerations in coaxial connectors This appendix describes dimensional considera- tions and required conventions used in determin- ing the physical offset length of calibration standards in sexed coaxial connector families. Precise measurement of the physical offset length is required to deter mine the OFFSET DEL AY of a ...

  • Agilent Technologies 8510 - page 27

    27 Female type-N Male type-N 7 mm Coaxial connector T ype-N coaxial connector interface The location of the “calibration plane” in T ype-N standards is the outer conductor mating surfaces as shown below . Note: 1.0mm, 1.85mm and 2.4mm connectors not shown, but similar to 3.5mm calibration planes. ...

  • Agilent Technologies 8510 - page 28

    28 ...

  • Agilent Technologies 8510 - page 29

    29 Appendix C Cal coefficients model Offset devices like offset shorts and of fset opens c an be modeled by the follo wing signal f low graph : Figure 1 Signal flow graph model of offset devices The offset por tion of the open or shor t, is modeled as a perfectly unif or m lossy air dielectric transmis- sion line. The expected coef ficient of ref l ...

  • Agilent Technologies 8510 - page 30

    30 Their first order appro ximations, R is small and G=0, are: Equation 3 Since Equation 4 F or coaxial devices ...

  • Agilent Technologies 8510 - page 31

    31 then: Equation 5 Equation 6 If the Of fset delay=0, then the coeff icient of ref lection, Γ = Γ L . ...

  • Agilent Technologies 8510 - page 32

    www .agilent.com/find/emailupdates Get the latest information on the products and applications you select. Ag ilent Email U pda tes www .agilent.com Agilent T echnologies’ T est and Measurement Support, Services, and Assistance Agilent T echnologies aims to maximize the value you receive, while minimizing your risk and problems. We strive to ensu ...

Fabricant Agilent Technologies Catégorie Network Hardware

Les documents que nous recevons du fabricant de l'appareilAgilent Technologies 8510 peuvent être divisés en plusieurs groupes. Ceux-ci sont, entre autres:
- dessins techniques Agilent Technologies
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Tous sont importants, mais les informations les plus importantes du point de vue de l'utilisation de l'appareil se trouvent dans le manuel d’utilisation Agilent Technologies 8510.

Un groupe de documents appelé manuels d’utilisation est également divisé en types plus spécifiques, tels que: Manuels d’installation Agilent Technologies 8510, manuels d’entretien, brefs manuels ou manuels de l’utilisateur Agilent Technologies 8510. Selon vos besoins, vous devriez chercher le document dont vous avez besoin. Sur notre site, vous pouvez voir le manuel le plus populaire d’utilisation du produit Agilent Technologies 8510.

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Le manuel d’utilisation, également appelé le mode d’emploi, ou tout simplement le manuel, est un document technique destiné à aider à utiliser Agilent Technologies 8510 par les utilisateurs. Des manuels sont généralement écrits par un rédacteur technique, mais dans un langage accessible à tous les utilisateurs Agilent Technologies 8510.

Le manuel d’utilisation complet Agilent Technologies, devrait inclure plusieurs éléments de base. Certains d'entre eux sont moins importants, tels que: la couverture / page de titre ou pages d'auteur. Cependant, la partie restante, devrait nous fournir des informations importantes du point de vue de l'utilisateur.

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5. FAQ - questions fréquemment posées
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