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N2002A Noise Source Test Set 10 MHz to 26.5 GHz Technical Overview

One of the key performance parameters for noise figure is the level of measurement uncertainty. A significant contributor to this is the uncertainty surrounding the noise source used when measuring noise figure on your device. Accurate noise source calibration is critical to minimizing noise source uncertainty, and thus a critical factor for obtaining quality noise figure measurements. The Agilent N2002A noise source test set is a stand-alone instrument that operates as an integral part of a noise source calibration system. The low cost, easy-to-use N2002A, as part of a calibration system, helps deliver fast, accurate, repeatable calibration results with minimal levels of uncertainty. Agilent recommends using the N2002A noise source test set together with the Agilent N8975A noise figure analyzer (NFA) 1 as the core equipment to perform fast and accurate noise source calibrations. The N2002A provides isolation between the noise source and the NFA to minimize the reflection coefficient. This coefficient contributes to reflections between the DUT and the source, causing uncertainty in the noise power emerging from the source; the measured noise figure refers to the actual noise source impedance, rather than the desired 50-ohm value. Incorporating the N2002A into a calibration system will minimize the interaction between the DUT and the NFA, thus minimizing the reflection coefficient and thereby ensuring measurement results with reduced measurement uncertainty. The result is more accurate noise source calibrations. Measurements made with an accurate noise source allow for greater confidence and tighter specifica- tions of the device being tested. The N2002A will be of particular interest if

  • you and your company would benefit from completing noise source calibration in-house, but previously found it too expensive or complex
  • you already perform noise source calibration with the Agilent N8975A NFA but would benefit from the improved accuracy provided by the N2002A test set
  • you already perform noise source calibration, without the N8975A, but would benefit from the improved speed and accuracy provided by the N2002A test set a n d N 8 9 7 5 A N F A c o m b i n a t i o n . In-house calibration Many customers have long equated noise source calibration with the time consuming and expensive delays of sending equipment to external laboratories or test houses. The straightforward operation and low cost of Agilent’s recommended noise source calibration equipment make the prospect of in-house calibration more appealing due to the drastic reduction in manufacturing downtime and the long-term financial advantages. Incorporating the N2002A into an existing noise source calibration system For engineers who currently run their own noise source calibration service, the N2002A noise source test set is an ideal addition to their test equipment. Incorporating this low-cost, self-contained unit into an existing noise source calibration system can significantly improve the quality of calibrations. With existing systems the noise source test set can be incorporated between the noise source and the noise figure measuring device to reduce reflections and therefore reduce the level of uncertainties. N2002A key features and benefits

Features

  • Reduces noise figure uncertainty thus ensuring a c c u r a t e a n d r e p e a t a b l e r e s u l t s
  • Operation over a frequency range of 10 MHz to 26.5 GHz
  • Results traceable to a national standard
  • Full calibration of Agilent SNS and 346 noise sources, as well as other manufacturers’ noise sources
  • Manual control or remote operation using GPIB Benefits
  • Ensures accuracy of noise source calibration systems, enabling greater confidence in and tighter specifications of the device under test
  • Provides speed and accuracy when combined with the N8975 noise figure analyzer, resulting in increased t h r o u g h p u t
  • Cost-efficient solution for on-site calibration, which minimizes downtime 1. Agilent recommends that the N2002A noise source test set be used in conjunction with Agilent equipment, however test and measurement equipment from other manufacturers can also be used.

Ordering Information

N2002A Noise source test set, 10 MHz to 26.5 GHz N2002A-001 Accessory cable and adapters Cable (x1): 1 1 5 0 0 E 3.5 mm female to female adapter (x3): 1 2 5 0 - 1 7 4 9 3.5 mm female to type-N female adapter ( x 1 ) : 1 2 5 0 - 1 7 4 5 Noise sources N4000 SNS series noise source N4000A SNS noise source, nominal ENR 6 dB, 1 0 M H z t o 1 8 G H z N4001A SNS noise source, nominal ENR 15 dB, 1 0 M H z t o 1 8 G H z N4002A SNS noise source, nominal ENR 15 dB, 1 0 M H z t o 2 6 . 5 G H z N400xA-001

3 Type-N (male) connector

N400xA-H10 Gold standards calibration 346 series noise source 346A 346 series noise source, nominal ENR 5 dB, 1 0 M H z t o 1 8 G H z 346B 346 series noise source, nominal ENR 15 dB, 1 0 M H z t o 1 8 G H z 346C 346 series noise source, nominal ENR 15 dB, 1 0 M H z t o 2 6 . 5 G H z 346x-001 Type-N (male) connector 346x-002

4 APC-7 connector

346x-004 4 Type-N (female) connector 346x-H10 Gold standards calibration Optional noise source calibration equipment5 11713A Attenuator/switch unit N8975A Noise figure analyzer, 10 MHz to 26.5 GHz ( o p t i o n N 8 9 7 5 A - 1 D 5 , h i g h s t a b i l i t y frequency reference) 3. Options only available with the N4000A and the N4001A. 4. Options only available with the 346A and the 346B. 5. Full system is not supplied - all necessary equipment must be purchased separately. Additional Literature Noise Source Calibration: Using the Agilent N8975A Noise Figure Analyzer and the N2002A Noise Source Test Set, product note, literature number 5988-7229EN NFA Series Noise Figure Analyzers, brochure, literature number 5980-0166E SNS Series Noise Sources, product overview, literature number 5988-0081EN Fundamentals of RF and Microwave Noise Figure Measurements, application note 57-1, literature number 5952-8255 Noise Figure Measurement Accuracy, application note 57-2, literature number 5952-3706

10 Hints for Making Successful Noise Figure

Measurements, application note 57-3, literature number 5980-0288E For more information on noise figure visit: www.agilent.com/find/nf For more information on N2002A noise source test set visit: www.agilent.com/find/nsts

www.agilent.com/fi nd/emailupdates Get the latest information on the products and applications you select. www.agilent.com/fi nd/agilentdirect Quickly choose and use your test equipment solutions with confi dence. www.agilent.com For more information on Agilent Technologies’ products, applications or services, please contact your local Agilent office. The complete list is available at: www.agilent.com/find/contactus Americas Canada (877) 894-4414 Latin America 305 269 7500 United States (800) 829-4444 Asia Pacific Australia 1 800 629 485 China 800 810 0189 Hong Kong 800 938 693 India 1 800 112 929 Japan 0120 (421) 345 Korea 080 769 0800 Malaysia 1 800 888 848 Singapore 1 800 375 8100 Taiwan 0800 047 866 Thailand 1 800 226 008 Europe & Middle East Austria 0820 87 44 11 Belgium 32 (0) 2 404 93 40 Denmark 45 70 13 15 15 Finland 358 (0) 10 855 2100 France 0825 010 700* *0.125 € fixed network rates Germany 01805 24 6333 0.14€/minute Ireland 1890 924 204 Israel 972-3-9288-504/544 Italy 39 02 92 60 8484 Netherlands 31 (0) 20 547 2111 Spain 34 (91) 631 3300 Sweden 0200-88 22 55 Switzerland (French) 41 (21) 8113811(Opt 2) Switzerland (German) 0800 80 53 53 (Opt 1) United Kingdom 44 (0) 118 9276201 Other European Countries: www.agilent.com/find/contactus Revised: October 24, 2007 Product specifi cations and descriptions in this document subject to change without notice. © Agilent Technologies, Inc. 2002, 2003, 2007 Printed in USA, November 29, 2007 5988-7228EN Remove all doubt Our repair and calibration services will get your equipment back to you, performing like new, when promised. You will get full value out of your Agilent equipment throughout its lifetime. Your equipment will be serviced by Agilent-trained technicians using the latest factory calibration procedures, automated repair diagnostics and genuine parts. You will always have the utmost confi dence in your measurements. Agilent offers a wide range of additional expert test and measurement services for your equipment, including initial start-up assistance onsite education and training, as well as design, system integration, and project management. For more information on repair and calibration services, go to: www.agilent.com/find/removealldoubt www.agilent.com/fi nd/open Agilent Open simplifies the process of c onnecting and programming test systems to help engineers design, validate and manufacture electronic products. Agilent offers open connectivity for a broad range of system-ready instruments, open industry software, PC-standard I/O and global support, which are combined to more easily integrate test system development. www.lxistandard.org LXI is the LAN-based successor to GPIB, providing faster, more effi cient connectivity. Agilent is a founding member of the LXI consortium.