Giga-tronics GT-1051A Operation Manual

10 mhz to 50 ghz microwave power amplifier
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Giga-tronics GT-1051A Microwave Power Amplifier
GT-1051A 10 MHz to 50 GHz
Microwave Power Amplifier
Operation Manual
Operation Manual, Part Number 35019, Rev. A, March 2011

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Summary of Contents for Giga-tronics GT-1051A

  • Page 1 Giga-tronics GT-1051A Microwave Power Amplifier GT-1051A 10 MHz to 50 GHz Microwave Power Amplifier Operation Manual Operation Manual, Part Number 35019, Rev. A, March 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-1051A 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-1051A 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-1051A 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 TPCI Issue...
  • Page 5: Table Of Contents

    ..........................3 HAPTER NTRODUCTION 2.1 Overview ................................3 2.1.1 Features and Benefits of the GT-1051A Microwave Power Amplifier ............. 3 2.2 Controls, Indicators, and Connectors ......................4 2.3 Receiving and Inspection ..........................6 2.4 Prepare the GT-1051A for Use ........................7 2.4.1 Cooling ..............................
  • Page 6 Figure 9: GT-1051A Performance Verification Setup ....................15 List of Tables Table 1: GT-1051A Front Panel Controls, Indicators, and Connections ..............5 Table 2: GT-1051A Rear Panel Controls, Indicators, and Connections ..............5 Table 3: Receiving and Inspection of the GT-1051A ....................6 Table 4: Operate the GT-1051A ..........................
  • Page 7: Chapter 1 Safety And Manual Conventions

    Giga-tronics GT-1051A 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

    Do not use repaired fuses or short circuited fuse holders. 1.5 Important Operating Instructions The GT-1051A 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-1051A Microwave Power Amplifiers are high-performance solid-state microwave power amplifiers. The Giga-tronics GT-1051A 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-1051A Microwave Power Amplifier 2.2 Controls, Indicators, and Connectors The following pages describe all of the features shown in Figure 1 and Figure 2. Figure 1: GT-1051A Front Panel Figure 2: GT-1051A Rear Panel Operation Manual, Part Number 35019, Rev. A, March 2011...
  • Page 11: Figure 3: Dc Power Input

    Giga-tronics GT-1051A Microwave Power Amplifier Introduction The tables below describe the functions of the features shown in Figure 1 and Figure 2 on the previous page. Table 1: GT-1051A Front Panel Controls, Indicators, and Connections GT-1051A Front Panel Controls, Indicators, and Connections Name...
  • Page 12: Receiving And Inspection

    Operation Manual AC line cord AC/DC switching adapter 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 35019, Rev. A, March 2011...
  • Page 13: Prepare The Gt-1051A For Use

    2.4.1 Cooling The GT-1051A has an internal cooling fan. The air intake is located on the rear panel of the instrument. When using the GT-1051A, ensure there are no obstructions to the flow of air into or out of the instrument.
  • Page 14: Repairs

    925.328.4702 925.328.4702 2. If it is has been determined that you must ship the GT-1051A 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 15: Chapter 3 Operation

    NOTE: Verify all mating connectors are 50 Ohm, and that they are in good condition. Energize the output of the microwave signal source. Adjust the output of the microwave signal source until the output from the GT-1051A is at the desired level.
  • Page 16: Chapter 4 Performance Verification

    GT-1051A. Performance Verification: this section contains the test procedure that ensures that the GT-1051A meets the specifications. 4.1 Specifications NOTE: Graphs of some of the GT-1051A characteristics are on page 13 and 14. Table 5: Frequency Range Frequency Range Model...
  • Page 17: Table 7: Gain Flatness

    Giga-tronics GT-1051A Microwave Power Amplifier Performance Verification Table 7: Gain Flatness Gain Flatness Range Specifications 10 MHz to 2 GHz ± 3.5 dB typical 2 to 40 GHz ± 5 dB maximum, ± 2.5 dB typical 2 to 50 GHz ±...
  • Page 18: Table 10: General Specifications

    Performance Verification Giga-tronics GT-1051A Microwave Power Amplifier Table 10: General Specifications General Specifications Parameter Specification Operating Temperature 0 °C to +50 °C Storage Temperature -20 °C to +75 °C Cooling Forced air Dimensions 2.75 inches H x 5.0 inches D x 5.5 inches W...
  • Page 19: Figure 5: S21 (Typical)

    Giga-tronics GT-1051A Microwave Power Amplifier Performance Verification Figure 5: S21 (typical) Figure 6: Group Delay (typical) Operation Manual, Part Number 35019, Rev. A, March 2011...
  • Page 20: Figure 7: S11, S22 (Typical)

    Performance Verification Giga-tronics GT-1051A Microwave Power Amplifier Figure 7: S11, S22 (typical) Figure 8: Saturated Output Power (typical) Operation Manual, Part Number 35019, Rev. A, March 2011...
  • Page 21: Performance Verification

    Figure 9: GT-1051A Performance Verification Setup Note: Connect test cable between 2550B RF Output and GT-1051A DUT RF Input. Connect the 10 dB attenuator pad directly to the GT-1051A DUT RF Output and the 81305A 50 GHz Power Sensor following the 10 dB attenuator pad.
  • Page 22: Table 12: Gt-1051A Performance Verification Procedure

    Performance Verification Giga-tronics GT-1051A Microwave Power Amplifier Table 12: GT-1051A Performance Verification Procedure GT-1051A Performance Verification Procedure Step Action Connect equipment as shown in Figure 9. Keep equipment powered off until all connections are made. Always start with signal generator RF Off.
  • Page 23: Table 13: Performance Verification Measurements

    Giga-tronics GT-1051A Microwave Power Amplifier Performance Verification Table 13: Performance Verification Measurements Frequency Minimum Power Measured Power Frequency Min. Power Measured Power (GHz) Output (dBm) Output (dBm) (GHz) Output (dBm) Output (dBm) Serial Number Operation Manual, Part Number 35019, Rev. A, March 2011...
  • Page 24: Appendixa Options

    Options Giga-tronics GT-1051A Microwave Power Amplifier Appendix A Options This section describes the options that are available for the GT-1051A. Table 14: GT-1051A Options GT-1051A Options Option Number Description Add Rack Mount Kit Operation Manual, Part Number 35019, Rev. A, March 2011...

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