Agilent N4985A System Amplifiers Operating and Service Manual
Contents
1. Acq Limit Test Waveforms 170 Figure 3 7 N4985A 0A3 231 1 EYE Input signal from PRBS generator Agilent N4985A System Amplifiers N w 4 a 4 l Le Return Loss amp Gain dB 4 Q N il 100k 1M Frequency Hz 10k Agilent N4985A System Amplifiers Frequency GHz Figure 3 8 Small signal parameters versus frequency for N4985A S50 a z 2 5 10 GHz 20 GHz 30 GHz 40 GHz 50 GHz 10 Output Power dBm Figure 3 9 Gain versus output power P4gg indicated with for N4985A S50 27 28 Psat dBm Figure 3 11 Input pulse Ch3 420 m Vppk 10 4 pS rise time Output pulse Ch4 6 5 Vppk 11 0 pS rise time for N4985A 50 Agilent N4985A System Amplifiers Acq Limit Test Waveforms 170 T Figure 3 13 N4985A 0A5 2 1 EYE lt 500 fs added rms jitter 5 ps div Agilent N4985A System Amplifiers 29 30 Figure 3 15 N4985A 0A5 23 1 EYE Input signal from PRBS generator Agilent N4985A System Amplifiers Table 3 4 N4985A P15 and N4985A P25 specifications Model Agilent N4985A P15 Agilent N4985A P25 Frequency 10 MHz to 50 GHz 2 GHz to 50 GHz Gain dB 30 dB 30 dB Small signal gain 20 min 25 typ 10 MHz to 2 GHz 25 min 29 typ 2 GHz to 10 GHz 25 min 29 typ 2 GHz to 10 GHz 24 min 28 typ 10 GHz to 302. Physical Specifications Table 3 6 Physical specifications for the N4985A Amplifiers Model Agilent N4985A S30 Agilent N4985A S50 Agilent N4985A P15 Net weight 0 26 kg 0 26 kg 1 03 kg Shipping weight 1 8 kg 1 8 kg 3 2 kg Shipping dimensions Length 90 mm 90 mm 114 mm Width 90 mm 90 mm 140 mm Height 25 mm 25 mm 70 mm Agilent N4985A P25 1 03 kg 3 2 kg 114 mm 140 mm 70 mm Agilent N4985A System Amplifiers 37 Mechanical Dimensions Figure 3 24 Mechanical dimensions of the N4985A S30 S50 amplifier _ 114 3 _ BL 440 yy 19 5 Figure 3 25 Mechanical dimensions of the N4985A P15 P25 amplifier 1 Dimensions in millimeters 38 Agilent N4985A System Amplifiers Agilent N4985A System Amplifiers Operating and Service Manual 4 Operation Guide Operating Instructions 40 Performance Verification on page 40 Example Application on page 41 Service and Maintenance 42 Service on page 42 Maintenance on page 42 This chapter provides the operating instructions for the N4985A Amplifiers ee Agilent Technologies 39 Operating Instructions 40 Performance Verification The figures below show the setup used to verify the perf
3. 35 40 45 Frequency GHz Figure 3 17 Typical N4985A P15 performance group delay 50 33 Frequency GHz Figure 3 18 Typical N4985A P15 performance S11 S22 Saturated Output Power dBm Frequency GHz Figure 3 19 Typical N4985A P15 performance saturated output power 34 Agilent N4985A System Amplifiers 20 25 30 35 40 45 Frequency GHz Figure 3 20 Typical N4985A P25 performance S21 Group Delay ps Frequency GHz Figure 3 21 Typical N4985A P25 performance group delay Agilent N4985A System Amplifiers 35 36 511 522 a 2 y N ao a o Frequency GHz Figure 3 22 Typical N4985A P25 performance S11 S22 Saturated Output Power dBm T T T T 1 20 25 30 35 40 45 50 Frequency GHz Figure 3 23 Typical N4985A P25 performance saturated output power Agilent N4985A System Amplifiers Supplementary Specifications Table 3 5 Supplementary specifications for the N4985A Amplifiers Model Agilent N4985A S30 Agilent N4985A S50 Agilent N4985A P15 Agilent N4985A P25 Bias voltage and current 9 Vdc at 500 mA 9 Vdc at 500 mA 9 Vdc at 1 5 A 9 Vdc at 1 5 A RF connectors 2 92 mm f 2 92 mm f 2 4 mm f 2 4 mm f Survival input power 20 dBm 20 dBm 26 dBm 26 dBm Operating temperature 0 to 55 C 0 to 55 C 0 to 55 C 0 to 55 C 1 Including the power supply and the DC power supply cable
4. but not limited to the implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use or per formance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accor dance with the terms of such license Restricted Rights Legend U S Government Restricted Rights Soft ware and technical data rights granted to the federal government include only those rights customarily provided to end user cus tomers Agilent provides this customary commercial license in Software and techni cal data pursuant to FAR 12 211 Technical Data and 12 212 Computer Software and for the Department of Defense DFARS 252 227 7015 Technical Data Commercial Items and DFARS 227 7202 3 Rights in Commercial Computer Software or Com puter Software Documentation Safety Notices CAUTION A CAUTION notice denotes a haz ard It calls attention to an operat ing procedure practice or the like that if not correctly performed or adhered to could result in dam
5. in a single package potentially replacing two or three narrower band amplifiers N4985A P15 and N4985A P25 e The amplifier is designed to be easily used in laboratory and test applications e It is small in size and has built in bias power supplies allowing close placement to the measurement or source reference plane Its high gain helps to compensate for system losses such as long transmission lines and system components 12 Agilent N4985A System Amplifiers Applications Agilent N4985A System Amplifiers The N4985A S30 and N4985A S50 system amplifiers are an often needed companion to synthesized signal generators and microwave sources The small size of the amplifiers allows close placement to the DUT or test fixture High gain and greater than 20 dBm output power will overcome long cable losses from the signal source and provide the additional output power needed in many development and test applications The N4985A P15 and N4985A P25 are test amplifiers designed for broadband power and gain applications It is ideally suited for saturated RF amplifier testing driving TWT amplifiers or as an antenna system amplifier High gain and typically 22 dBm output power at 50 GHz will overcome long cable losses from the signal source and will provide additional power required in many development and test applications 13 14 This page is intentionally left blank Agilent N4985A System Amplifiers Agilent N4985A System Amplif
6. products contact your local Agilent office or see www agilent com for more information Regulatory Markings The CE mark shows that the product complies with all the relevant European Legal Directives ICES NMB 001 indicates that this ISM device complies with ICES NMB 001 Canadian ICES 001 Cet appareill ISM est conforme a la norme NMB 001 du Canada The C Tick mark is a registered trademark of the Spectrum N10149 Management Agency of Australia This signifies compliance with the Australian EMC Framework Regulations under the terms of the Radio Communications Act of 1992 This symbol indicates the time period during which no w hazardous or toxic substance elements are expected to leak or deteriorate during normal use Forty years is the expected useful life of the product South Korean Class EMC declaration This equipment is Class A suitable for professional use and is for use in electromagnetic environments outside of the home REC CRW ADC AEXEERANANEEEX Aw 717 BTE 88471274 9 ANE AER AF AAPARINNE H WA EE agai o AS RHA whe H RAJA AANA Aet AS FAO Agilent N4985A System Amplifiers Contacting Agilent Agilent N4985A System Amplifiers For more information please contact your nearest Agilent office Americas Canada Latin America United States Asia Pacific Australia China Hong Kong India Japan Korea Malaysia Singapore Taiwan Thailand Europe Austria
7. 20 This page is intentionally left blank Agilent N4985A System Amplifiers Agilent N4985A System Amplifiers Operating and Service Manual 3 Specifications General Specifications 22 Specifications on page 22 Supplementary Specifications 37 Physical Specifications 37 Mechanical Dimensions 38 This chapter provides the specifications of the N4985A Amplifiers ee Agilent Technologies 21 General Specifications Specifications Specifications refer to the performance standards or limits against which the N4985A is tested Typical characteristics are included for additional information only and they are not specifications These are denoted as typical nominal or approximate and are printed in italic Table 3 1 N4985A S30 and N4985A S50 specifications Model Agilent N4985A S30 Agilent N4985A S50 Frequency 100 kHz to 30 GHz 100 kHz to 50 GHz Gain dB 30 dB Small signal gain Output power at Pat dB Input match S dB Output match Sy dB Noise figure dBm 2nd harmonics H dBc P 27 min 30 typ 1 GHz to 26 GHz 20 min 22 typ 100 kHz to 26 GHz 10 typ 1 GHz to 26 GHz 10 typ 1 GHz to 26 GHz 5 typ 2 GHz to 30 GHz 30 typ 2 GHz to 25 GHz 27 min 30 typ 24 min 27 typ 20 min 22 typ 20 typ 17 typ 10 typ 8 typ 10 typ 8 typ 5 typ 6 typ 30 typ 1 GHz to 26 GHz 26 GHz to 45 GHz 100 kHz to 26 GHz 26 GHz
8. Agilent N4985A System Amplifiers Operating and Service Manual ote Agilent Technologies Notices Agilent Technologies Inc 2013 No part of this manual may be reproduced in any form or by any means including elec tronic storage and retrieval or translation into a foreign language without prior agree ment and written consent from Agilent Technologies Inc as governed by United States and international copyright laws Manual Part Number N4985 90001 Edition First Edition June 2013 Printed in Malaysia Agilent Technologies Inc Phase 3 Bayan Lepas Free Industrial Zone Bayan Lepas Penang 11900 Malaysia Certification Agilent Technologies certified that this product met its published specifications at the time of shipment from the factory Agi lent Technologies further certifies that its calibration measurements are referenced to the United States National Institute of Stan dards and Technology NIST formerly NBS to the extent allowed by the Institute s cali bration facility and to the calibration facili ties of other International Standards Organization members Warranty The material contained in this docu ment is provided as is and is sub ject to being changed without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including
9. Belgium Denmark Finland France Germany lreland Italy Netherlands Spain Sweden Switzerland French Switzerland German United Kingdom Other European Countries 877 894 4414 305 269 7500 800 829 4444 1 800 629 485 800 810 0189 800 938 693 1 800 112 929 81 426 56 7832 080 769 0800 1 800 888 848 1 800 375 8100 0800 047 866 1 800 226 008 0820 87 4411 32 0 2 404 93 40 45 7013 15 15 358 0 10 855 2100 0825 010 700 01805 24 6333 1890 924 204 39 02 92 60 8484 31 0 20 547 2111 34 91 631 3300 0200 88 22 55 41 21 8113811 Opt 2 0800 80 53 53 Opt 1 44 0 118 9276201 www agilent com find contactus Or go to www agilent com find assist for more information Declaration of Conformity A copy of the Manufacturer s European Declaration of Conformity for these System Amplifiers can be obtained by contacting your local Agilent Technologies sales representative or copies can be downloaded from the Agilent Technologies Inc Web site at http regulations corporate agilent com DoC search htm Agilent N4985A System Amplifiers Contents Agilent N4985A System Amplifiers Introduction 9 Product Overview 10 Features of the Agilent N4985A Amplifiers 12 Applications 13 Installation 15 Initial Inspection 16 Service and Recalibration 17 Related Documentation 17 Operating and Safety Precautions 18 ESD Damage 18 Connector Care 19 Specifications 21 General Specifications 22 Specificatio
10. GHz 24 min 28 typ 10 GHz to 30 GHz 21 min 25 typ 30 GHz to 40 GHz 21 min 25 typ 30 GHz to 40 GHz 17 min 24 typ 40 GHz to 50 GHz 17 min 24 typ 40 GHz to 50 GHz Output power at Psat dB 20 min 24 typ 10 MHz to 2 GHz 26 min 30 typ 2 GHz to 10 GHz 26 min 30 typ 2 GHz to 10 GHz 25 min 29 typ 10 GHz to 30 GHz 25 min 29 typ 10 GHz to 30 GHz 23 min 27 typ 30 GHz to 40 GHz 23 min 27 typ 30 GHz to 40 GHz 20 min 24 typ 40 GHz to 50 GHz 20 min 24 typ 40 GHz to 50 GHz Output power P 48 dB 17 min 22 typ 10 MHz to 2 GHz 24 min 28 typ 2 GHz to 10 GHz 24 min 28 typ 2 GHz to 10 GHz 23 min 27 typ 10 GHz to 30 GHz 23 min 27 typ 10 GHz to 30 GHz 21 min 25 typ 30 GHz to 40 GHz 21 min 25 typ 30 GHz to 40 GHz 17 min 22 typ 40 GHz to 50 GHz 17 min 22 typ 40 GHz to 50 GHz Input match S4 dB 15 typ 10 MHz to 2 GHz 15 typ 2 GHz to 10 GHz 15 typ 2 GHz to 10 GHz 15 typ 10 GHz to 30 GHz 15 typ 10 GHz to 30 GHz 10 typ 30 GHz to 40 GHz 10 typ 30 GHz to 40 GHz 8 typ 40 GHz to 50 GHz 8 typ 40 GHz to 50 GHz Agilent N4985A System Amplifiers 31 Table 3 4 N4985A P15 and N4985A P25 specifications continued Model Agilent N4985A P15 Agilent N4985A P25 Output match S dB Reverse isolation dB Noise figure dBm 2nd harmonics H dBc P 3rd harmonics H dBc P 6 typ 15 typ 10 t
11. age to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met Agilent N4985A System Amplifiers Compliance Notices and Regulatory Information Compliance with Electromagnetic Compatibility EMC This product conforms with the protection requirements of EMC Directive 2004 108 EC for Electromagnetic Compatibility This product complies to the EMC Directive by assessment according to the IEC EN61326 1 2005 EMC standard In order to preserve the EMC performance of this product any cable which becomes worn or damaged must be replaced with the same type and specifications WEEE Compliance Agilent N4985A System Amplifiers This product complies with the WEEE Directive 2002 96 EC marking requirements The affixed label indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE Directive Annex I this product is classed as a Monitoring and Control Instrumentation product Do not dispose in domestic household waste To return unwanted
12. anual for the Agilent Technologies nearest to you Attach a tag indicating the type of service required return address model number and serial number Mark the container FRAGILE to insure careful handling In any correspondence refer to the instrument by its model number and serial number Agilent N4985A System Amplifiers Service and Recalibration If your N4985A amplifiers require service or repair contact the nearest Agilent office for information on where to send it Refer to Contacting Agilent in the front matter of this manual The performance of the N4985A can only be verified by specially manufactured equipment and calibration standards from Agilent The recommended interval for recalibration is 12 months Related Documentation Agilent N4985A System Amplifiers This Operating and Service Manual is shipped with the product It is also available at http www agilent com find N4985A 17 Operating and Safety Precautions Observe the following guidelines before connecting or operating the N4985A System Amplifiers ESD Damage Protection against electrostatic discharge ESD is important while handling and operating the N4985A Static electricity can build up on your body and can easily damage sensitive components when discharged Static discharges too small to be felt can cause permanent damage to the unit To prevent damage from ESD e Use a grounded antistatic mat in front of your test equipment and w
13. ear a grounded wrist strap attached to it when handling or operating the N4985A e Wear a heel strap when working in an area with a conductive floor e Ground yourself before you clean inspect or make a connection to the N4985A You can for example grasp the grounded outer shell of the analyzer test port or cable connector briefly e Avoid touching the exposed connector pins 18 Agilent N4985A System Amplifiers Connector Care CAUTION Because connectors can become defective due to wear during normal use all connectors should be inspected and maintained to maximize their service life Inspect the mating surface each time a connection is made Metal particles from connector threads often find their way onto the mating surface when a connection is made or disconnected Clean dirt and contamination from the connector mating surface and threads This simple step can extend the service life of the connector and improve the quality of your calibration and measurements Gage connectors periodically This not only provides assurance Of proper mechanical tolerances and thus connector performance but can also indicate situations where the potential for damage to another connector may exist The N4985A can be damaged if excessive torque is applied to the connectors The recommended torque value is 8 Ib in torque for 2 4 mm and 2 92 mm 5 Ib in torque for 1 85 mm DCA sampling head Agilent N4985A System Amplifiers 19
14. h Performance System Amplifier The N4985A P15 and N4985A P25 are high performance broadband amplifiers with excellent power and gain up to 50 GHz which have many uses in research development or production line environment These amplifiers are a useful addition to the laboratory where RF microwave or millimeter wave measurements are made Typical applications include e Driver for high power amplifiers such as TWT or linear power amplifiers e Overcome system losses such as long transmission lines power dividers etc e Antenna research and development antenna characterization systems e Broadband RF characterization N4985A P15 Amplifier N4985A P25 Amplifier aon nagasa pis M baer ate t Technologies Figure 1 2 Agilent N4985A P15 P25 amplifier Agilent N4985A System Amplifiers 11 Features of the Agilent N4985A Amplifiers The N4985A is a high performance amplifier featuring broadband frequency coverage Model Frequency Range Gain N4985A S30 100 kHz to 30 GHz 30 dB N4985A S50 100 kHz to 50 GHz 30 dB N4985A P15 10 MHz to 50 GHz 25 dB N4985A P25 2 GHz to 50 GHz 27 dB N4985A S30 and N4985A S50 e The amplifier is designed to be a multi use laboratory RF amplifier as a gain block for frequency domain applications or as a time domain pulse amplifier e The amplifier s small size and versatile performance make it an excellent selection as a general purpose gain block with moderate power output
15. iers Operating and Service Manual 2 Installation Initial Inspection 16 Service and Recalibration 17 Related Documentation 17 Operating and Safety Precautions 18 ESD Damage on page 18 Connector Care on page 19 This chapter provides you important information on how to check and prepare your instrument for operation ott Agilent Technologies 15 Initial Inspection 16 Unpack and inspect the shipping container and its contents thoroughly to ensure that nothing was damaged during shipment If the shipping container or cushioning material is damaged the contents should be checked both mechanically and electrically Check for mechanical damage such as scratches or dents Procedures for checking electrical performance are given under Performance Verification on page 40 If the contents are damaged or defective contact your nearest Agilent Technologies Service and Support Office Refer to Contacting Agilent in the front matter of this manual Agilent Technologies will arrange for repair or replacement of the damaged or defective equipment Keep the shipping materials for the carrier s inspection If you are returning the instrument under warranty or for service repackaging the instrument requires original shipping containers and materials or their equivalents Agilent Technologies can provide packaging materials identical to the original materials Refer to Contacting Agilent in the front matter of this m
16. ignal Generator with precise amplitude control e g Agilent 83650L RF Source The power levels are measured using a power meter with two measurement port sensors A and B e g Agilent E4419B An RF power coupler provides a small proportional amount of the amplified power to power sensor A as shown in the above figure 41 Service and Maintenance 42 Service Maintenance The N4985A does not have internal adjustments and should not be opened it should only be repaired by service trained personnel Should it become necessary to return the N4985A for repair or service contact your nearest Agilent Sales and Service Center The connectors of the N4985A particularly the connector faces must be kept clean Agilent recommends that the connectors be periodically inspected and cleaned if necessary For instructions on the connection and maintenance of your connectors refer to the Connector Care Quick Reference Card 08510 90360 Agilent N4985A System Amplifiers
17. ns 22 Supplementary Specifications 37 Physical Specifications 37 Mechanical Dimensions 38 Operation Guide 39 Operating Instructions 40 Performance Verification 40 Example Application 41 Service and Maintenance 42 Service 42 Maintenance 42 This page is intentionally left blank Agilent N4985A System Amplifiers Agilent N4985A System Amplifiers Operating and Service Manual 1 Introduction Product Overview 10 Features of the Agilent N4985A Amplifiers on page 12 Applications on page 13 This chapter provides an overview of the N4985A Amplifiers ee Agilent Technologies 9 Product Overview High Performance Broadband RF Amplifier The N4985A S30 and N4985A S50 system amplifiers are high performance broadband amplifiers featuring baseband RF lt 100 kHz through millimeter wave frequency coverage These amplifiers which have many uses in research development or production line environment are a useful addition to the laboratory where RF microwave or millimeter wave measurements are made Typical applications include e RF Source Amplifier e Mixer LO Amplifier e Noise Figure LNA and Noise Figure System Amplifier e Pulse Amplifier and time domain applications e Digital communication systems e Antenna research and development e General purpose RF gain block N4985A S30 Amplifier N4985A S50 Amplifier Figure 1 1 Agilent N4985A S30 S50 amplifier 10 Agilent N4985A System Amplifiers Hig
18. ormance of the N4985A Amplifiers A calibrated power splitter or calibrated coupler connected to the amplifier input reference plane and to power sensor A as shown establishes the input power level The output power is measured on power sensor B Measurements of gain versus output power at frequencies of interest establish the amplifier performance N4985A RF Source Power Splitter Power Sensors Power Meter Figure 4 1 Verification setup with a power splitter RF Source N4985A Power Meter Figure 4 2 Verification setup with a calibrated coupler Agilent N4985A System Amplifiers Example Application The N4985A amplifies the RF Source output power to the level needed to characterize DUT performance The small size of the N4985A is easy to place close to the DUT input Reference Plane The high gain of the amplifier easily overcomes the cable losses from the remote RF Source The figure below shows an amplified RF power measurement system using the N4985A RF Source N4985A Reference Plane Sensors Power Meter Agilent N4985A System Amplifiers Figure 4 3 Example of an amplified RF power measurement system The DUT is characterized by setting the power level at the DUT input Reference Plane and measuring the output power at various input power levels for each test frequency The RF Source used in this example is a laboratory grade Synthesized Source or S
19. to 40 GHz 40 GHz to 50 GHz 1 GHz to 26 GHz 26 GHz to 45 GHz 1 GHz to 26 GHz 26 GHz to 45 GHz 2 GHz to 3 GHz 30 GHz to 40 GHz 2 GHz to 25 GHz 22 Agilent N4985A System Amplifiers Table 3 2 Additional specifications for N4985A 0A3 Description Minimum Typical Maximum S21 V Output eye amplitude 7 75 Input eye amplitude 0 5 S21 ps Jitter additive rms lt 0 5 lt 1 Tr Tf ps Rise fall time lt 8 lt 10 Table 3 3 Additional specifications for N4985A 0A5 Description Minimum Typical Maximum S21 V Output eye amplitude 7 7 5 Input eye amplitude 0 5 S21 ps Jitter additive rms lt 0 5 lt 1 Tr Tf ps Rise fall time lt 8 lt 10 Return Loss amp Gain dB o PT GPA arr mar h 10k 100k IM 10M LOOM 5 10 15 20 25 30 Frequency Hz Frequency GHz Figure 3 1 Small signal parameters versus frequency for N4985A S30 Agilent N4985A System Amplifiers 23 s S E 3 10 GHz 20 GHz 30 GHz 10 15 Output Power dBm Figure 3 2 Gain versus output power P4gg indicated with for N4985A S30 Psat dBm Frequency GHz Figure 3 3 Saturated output power for N4985A S30 24 Agilent N4985A System Amplifiers Agilent N4985A System Amplifiers Acq Limit Test VYaveroms 170 Figure 3 5 N4985A 0A3 2 1 EYE lt 500 fs added rms jitter 5 ps div 25 26 Acq Limit Test Vvavetomns 170
20. yp 6 typ typ 60 typ 60 typ 60 typ 50 typ 50 typ 9 typ 9 typ 10 5 typ 12 typ 40 typ 40 typ 40 typ 35 typ 30 typ 20 typ 20 typ 20 typ 10 MHz to 2 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 10 MHz to 2 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 10 MHz to 2 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 10 MHz to 2 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 15 typ 10 typ 6 typ 6 typ 60 typ 60 typ 50 typ 50 typ 9 typ 9 typ 10 5 typ 12 typ 40 typ 40 typ 35 typ 30 typ 20 typ 20 typ 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 2 GHz to 10 GHz 10 GHz to 30 GHz 30 GHz to 40 GHz 40 GHz to 50 GHz 32 Agilent N4985A System Amplifiers Agilent N4985A System Amplifiers Figure 3 16 Typical N4985A P15 performance S21 1200 7 1000 800 600 Group Delay ps 400 200 0 T T T T T T T T T 5 10 15 20 25 30
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