Giga-tronics GT-1020A Operation Manual

100 mhz to 20 ghz microwave power amplifier

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Giga-tronics GT-1020A Microwave Power Amplifier
GT-1020A 100 MHz to 20 GHz
Microwave Power Amplifier
Operation Manual
Operation Manual, Part Number 34980, Rev. A, January 2011

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  • Page 1 Giga-tronics GT-1020A Microwave Power Amplifier GT-1020A 100 MHz to 20 GHz Microwave Power Amplifier Operation Manual Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 2: Contact Information

    All technical data and specifications in this publication are subject to change without prior notice and do not represent a commitment on the part of Giga-tronics, Incorporated. © 2011 Giga-tronics Incorporated. All rights reserved. Printed in the U.S.A. Warranty Giga-tronics GT-1020A Microwave Power Amplifiers are warranted against defective materials and workmanship for one year from date of shipment.
  • Page 3 Type of Equipment: Model Series Number: Microwave Power Amplifier GT-1020A Model Numbers: Not applicable Declaration of Conformity on file. Contact Giga-tronics at the following; Giga-tronics, Incorporated 4650 Norris Canyon Road San Ramon, California 94583 Telephone: 800.726.4442 (only within the United States) 925.328.4650...
  • Page 4 Giga-tronics GT-1020A Microwave Power Amplifier Record of Changes to This Manual Use the table below to maintain a permanent record of changes to this document. Replacement pages will be issued as a TPCI (Technical Publication Change Instruction). TPCI Number TPCI Issue Date...
  • Page 5: Table Of Contents

    ............................3 HAPTER NTRODUCTION 2.1 Overview..............................3 2.1.1 Features and Benefits of the GT-1020A Microwave Power Amplifier ........... 3 2.2 Controls, Indicators, and Connectors ......................4 2.3 Receiving and Inspection..........................5 2.4 Prepare the GT-1020A for Use........................6 2.4.1 Cooling..............................6 2.4.2 AC Power Requirements........................
  • Page 6 Figure 5: GT-1020A Performance Verification Setup ..................15 List of Tables Table 1: GT-1020A Front Panel Controls, Indicators, and Connections..............5 Table 2: GT-1020A Rear Panel Controls, Indicators, and Connections ..............5 Table 3: Receiving and Inspection of the GT-1020A....................5 Table 4: Operate the GT-1020A..........................9 Table 5: Frequency Range ..........................
  • Page 7: Chapter 1 Safety And Manual Conventions

    Giga-tronics GT-1020A Microwave Power Amplifier Safety and Manual Conventions Chapter 1 Safety and Manual Conventions This manual contains conventions regarding safety and equipment usage as described below. 1.1 Personal Safety Alert WARNING: Indicates a hazardous situation which, if not avoided, could result in death WARNING or serious injury.
  • Page 8: Electrical Safety Precautions

    1.5 Important Operating Instructions  The GT-1020A Amplifier does not include an enable/disable feature to activate and deactivate the amplifier. When connecting or disconnecting the output of the amplifier, ensure that the power switch on the rear of the amplifier is in the OFF position.
  • Page 9: Chapter 2 Introduction

    The Giga-tronics GT-1020A Microwave Power Amplifiers are high-performance solid-state microwave power amplifiers. The Giga-tronics GT-1020A provide excellent pulse fidelity, low intermodulation distortion, high linearity and superior gain flatness without the warm-up time, drift or aging issues of traveling wave tube amplifiers (TWTA).
  • Page 10: Controls, Indicators, And Connectors

    Introduction Giga-tronics GT-1020A Microwave Power Amplifier Controls, Indicators, and Connectors The following pages describe all of the features shown in Figure 1 and Figure 2 below. Figure 1: GT-1020A Front Panel Figure 2: GT-1020A Rear Panel Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 11: Receiving And Inspection

    Operation Manual  AC line cord If any of the contents are damaged or missing, contact Giga-tronics immediately. Refer to the Contact Information on the inside of the front cover of this manual. End of procedure Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 12: Prepare The Gt-1020A For Use

    2.4.1 Cooling The GT-1020A has an internal cooling fan. The air intake is located on the rear panel of the instrument. When using the GT-1020A, ensure there are no obstructions to the flow of air into or out of the instrument.
  • Page 13: Repairs

    925.328.4702 925.328.4702 2. If it is has been determined that you must ship the GT-1020A to the factory or a service center for repair, you will be issued a Return Materials Authorization (RMA) number. Use the RMA number in all correspondence regarding the repair.
  • Page 14: Chapter 3 Operation

    Put the POWER switch on the GT-1020A in the ON position. NOTE: For best results, let the GT-1020A warm up for one minute after switching the AC power Verify that the output of the microwave signal source is NOT energized before continuing to the next step.
  • Page 15: Chapter 4 Performance Verification

    GT-1020A.  Performance Verification: this section contains the test procedure that ensures that the GT-1020A meets the specifications. 4.1 Specifications NOTE: Graphs of some of the GT-1020A characteristics are on page 14. Table 5: Frequency Range Model Specification GT-1020A...
  • Page 16: Table 7: Gain Flatness

    Performance Verification Giga-tronics GT-1020A Microwave Power Amplifier Table 7: Gain Flatness Range Specifications 100 MHz to 20 GHz ±2.5 dB typical, ±3.5 dB maximum NOTES:  Nominal gain is 35 dB, minimum gain > 25dB.  Gain flatness is specified as maximum variation with -5 dBm input and 50 Ohm load.
  • Page 17: Table 10: General Specifications

    Giga-tronics GT-1020A Microwave Power Amplifier Performance Verification Table 10: General Specifications Parameter Specification Operating Temperature 0 °C to +50 °C Storage Temperature -20 °C to +75 °C Cooling Forced air Dimensions 2.5 inches H x 6.8 inches D x 7.0 inches W...
  • Page 18: Figure 3: Saturated Output Power (Nominal)

    Performance Verification Giga-tronics GT-1020A Microwave Power Amplifier Figure 3: Saturated Output Power (nominal) Figure 4: Gain (nominal) Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 19: Performance Verification

    4.2 Performance Verification This section describes how to test the GT-1020A to verify that it meets Giga-tronics specifications. The overall operation of the GT-1020A Microwave Power Amplifier is checked using a broadband signal source, power sensor, and a power meter.
  • Page 20: Table 11: Gt-1020A Performance Verification Procedure

    Performance Verification Giga-tronics GT-1020A Microwave Power Amplifier Performance Verification, Continued Table 11: GT-1020A Performance Verification Procedure Step Action Connect equipment as shown in Figure 5. Keep equipment powered off until all connections are made. Always start with signal generator RF Off.
  • Page 21: Table 12: Performance Verification Measurements

    Giga-tronics GT-1020A Microwave Power Amplifier Performance Verification Performance Verification, Continued Table 12: Performance Verification Measurements Frequency (GHz) Minimum Power Output Measured Power Output (dBm) (dBm) Serial Number Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 22: Appendix A Options

    Giga-tronics GT-1020A Microwave Power Amplifier Appendix A – Options Appendix A Options This section describes the options that are available for the GT-1020A. Table 13: GT-1020A Options Option Number Description Add Rack Mount Kit Operation Manual, Part Number 34980, Rev. A, January 2011...
  • Page 23 Appendix A – Options Giga-tronics GT-1020A Microwave Power Amplifier Last page of Document Operation Manual, Part Number 34980, Rev. A, January 2011...

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