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Giga-tronics GT-1050A Microwave Power Amplifier

Operation Manual, Part Number 34817, Rev. C, March 2011

Operation Manual

GT-1050A 2 GHz to 50 GHz

Microwave Power Amplifier

Summary of Contents for GT-1050A

Page 1: ...Giga tronics GT 1050A Microwave Power Amplifier Operation Manual Part Number 34817 Rev C March 2011 Operation Manual GT 1050A 2 GHz to 50 GHz Microwave Power Amplifier ...

Page 2: ...42 only within the United States 925 328 4650 Fax 925 328 4700 On the Internet www gigatronics com Warranty Giga tronics GT 1050A Microwave Power Amplifiers are warranted against defective materials and workmanship for one year from date of shipment Giga tronics will at its option repair or replace products that are proven defective during the warranty period This warranty DOES NOT cover damage re...

Page 3: ...e EN61010 1 1993 Electrical Safety EN61326 1 1997 EMC Emissions and Immunity Manufacturer s Name Manufacturer s Address Giga tronics Incorporated 4650 Norris Canyon Road San Ramon California 94583 U S A Type of Equipment Model Series Number Microwave Power Amplifier GT 1050A Model Numbers Not applicable Declaration of Conformity on file Contact Giga tronics at the following Giga tronics Incorporat...

Page 4: ...mber 34817 Rev C March 2011 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 Date Entered Comments ...

Page 5: ...ew 3 2 1 1 Features and Benefits of the GT 1050A Microwave Power Amplifier 3 2 2 Controls Indicators and Connectors 4 2 3 Receiving and Inspection 6 2 4 Prepare the GT 1050A for Use 7 2 4 1 Cooling 7 2 4 2 AC Power Requirements 7 2 5 Shipping Repair and Calibration 7 2 5 1 Shipping the GT 1050A 7 2 5 2 Repairs 8 2 5 3 Calibration 8 CHAPTER 3 OPERATION 9 3 1 Operating Safety and Instructions 9 CHAP...

Page 6: ...fication Setup 15 List of Tables Table 1 GT 1050A Front Panel Controls Indicators and Connections 5 Table 2 GT 1050A Rear Panel Controls Indicators and Connections 5 Table 3 Receiving and Inspection of the GT 1050A 6 Table 4 Operate the GT 1050A 9 Table 5 Frequency Range 10 Table 6 Output Power 10 Table 7 Gain Flatness 11 Table 8 Input and Output VSWR 11 Table 9 Additional Specifications 11 Table ...

Page 7: ...cates a hazardous situation which if not avoided could result in death or serious injury 1 2 Equipment Safety Alert CAUTION Indicates a situation which can damage or adversely affect the GT 1050A or associated equipment 1 3 Notes Notes are denoted and used as follows NOTE Highlights or amplifies an essential operating or maintenance procedure practice condition or statement Review this manual to b...

Page 8: ...d fuses or short circuited fuse holders 1 5 Important Operating Instructions The GT 1050A 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 When connecting the amplifier to a transmitting device observe all safety ...

Page 9: ...flatness without the warm up time drift or aging issues of traveling wave tube amplifiers TWTA They feature low noise figure low harmonics and spurious content and are highly tolerant to load mismatch GT 1050A Frequency Range 2 GHz to 50 GHz 2 4 mm f input and output connectors 2 1 1 Features and Benefits of the GT 1050A Microwave Power Amplifier 25 dB nominal gain over the 2 GHz to 50 GHz frequen...

Page 10: ...Power Amplifier 4 Operation Manual Part Number 34817 Rev C March 2011 2 2 Controls Indicators and Connectors The following pages describe all of the features shown in Figure 1 and Figure 2 Figure 1 GT 1050A Front Panel Figure 2 GT 1050A Rear Panel ...

Page 11: ...witching adapter See Figure below Figure 3 DC Power Input Power On Off switch Switches the unit on and off INPUT RF input connector 2 92 mm f to 2 4 mm m adapter available contact factory GT 1050A 2 4 mm f DET Power output detector output NOTE The Detector output provides a differential DC output voltage proportional to the amplifier output power level and can be used directly as an indication of ...

Page 12: ...f damage If THERE IS evidence of damage record the location and extent of the damage and contact the shipper immediately to report the damage If there is NO EVIDENCE of damage continue to the next step 2 Open the shipping container and inspect the contents for evidence of damage The contents should include the following GT 1050A Microwave Power Amplifier Operation Manual AC line cord AC DC switchi...

Page 13: ...on 2 5 1 Shipping the GT 1050A If it is necessary to ship the GT 1050A observe the following Use the best packaging materials available If possible reuse the original shipping container If the original shipping container is not available use a strong carton 350 lbs sq in bursting strength or a wooden box Wrap the amplifier in heavy paper or plastic before placing it into the shipping container Com...

Page 14: ...following information Contacting Giga tronics Customer Service Email repairs gigatronics com Telephone within the United States 800 726 4442 Telephone 925 328 4702 Fax 925 328 4702 2 If it is has been determined that you must ship the GT 1050A 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 regard...

Page 15: ...Action 1 Verify that the POWER switch on the rear of the unit is OFF Plug the included external power supply into a source of AC power that meets the specifications for power in Table 10 on page 12 Plug the DC cable from the external power supply into the connector 9 V on the rear of the unit Put the POWER switch on the GT 1050A in the ON position NOTE For best results let the GT 1050A warm up for...

Page 16: ...cations NOTE Graphs of some of the GT 1050A characteristics are on page 13 and page 14 Table 5 Frequency Range Frequency Range Model Specification GT 1050A 2 GHz to 50 GHz GT 1051A 10 MHz to 50 GHz Table 6 Output Power Output Power Parameter Specification 2 to 10 GHz 30 dBm 1 Watt typical 26 dBm 400 mW minimum 10 to 30 GHz 28 dBm 600 mW typical 25 dBm 300 mW minimum 30 to 40 GHz 27 dBm 500 mW typi...

Page 17: ...0 Ohm load Table 8 Input and Output VSWR Input and Output VSWR Connector Frequency Range 2 to 30 GHz 30 to 40 GHz 40 to 50 GHz Input 50 ohms 1 5 1 typical 2 0 1 typical 2 3 1 typical Output 50 ohms 2 0 1 typical 2 3 1 typical 2 9 1 typical Table 9 Additional Specifications Additional Specifications Parameter Specification Stability Unconditionally Stable Maximum Load VSWR 3 1 Harmonic Distortion 3...

Page 18: ...H x 5 0 inches D x 5 5 inches W 70 mm H x 127 mm D x 140 mm W Weight 4 5 lbs 2 kg RF Connectors 2 4 mm f External Power Supply AC line input 100 to 240 VAC 50 to 60 Hz 0 7 A Single Phase DC output 9 0 V 2 77 A 25 W maximum Table 11 Supplemental Data Supplemental Data Parameter Specification Operating Temperature 0 C to 55 C Maximum input power RF 20 dBm DC power dissipation 9 V 1 5 A Input connect...

Page 19: ...Giga tronics GT 1050A Microwave Power Amplifier Performance Verification Operation Manual Part Number 34817 Rev C March 2011 13 Figure 5 S21 typical Figure 6 Group Delay typical ...

Page 20: ...Performance Verification Giga tronics GT 1050A Microwave Power Amplifier 14 Operation Manual Part Number 34817 Rev C March 2011 Figure 7 S11 S22 typical Figure 8 Saturated Output Power typical ...

Page 21: ...cedure is shown in Table 12 and starts on page 16 4 2 1 Equipment and Material Signal source Giga tronics 2550B 50 GHz Microwave Signal Generator or equivalent Power meter Giga tronics 8651B or 8652B Power Meter or equivalent Power sensor Giga tronics 81305A 50 GHz 2 4 mm or equivalent Attenuator pad 10 dB 50 GHz 2 4 mm Attenuator Pad Test cable 2 4 mm m 50 GHz test cable Figure 9 GT 1050A Perform...

Page 22: ...inutes 5 Set signal generator to the first test frequency and RF power level at 20 dBm 6 Set power meter to first test frequency 7 Set 10 dB Offset on power meter to compensate for 10 dB attenuator pad 8 Turn on signal generator RF output and increase RF power level to 5 dBm 9 Measure power output from DUT on power meter and record the value 10 Set signal generator to the next test frequency 11 Se...

Page 23: ...wer Output dBm Measured Power Output dBm Frequency GHz Min Power Output dBm Measured Power Output dBm 26 20 2 23 27 20 3 23 28 20 4 23 29 20 5 23 30 20 6 23 31 20 7 23 32 20 8 23 33 20 9 23 34 20 10 23 35 20 11 23 36 20 12 23 37 20 13 23 38 20 14 23 39 20 15 23 40 20 16 23 41 20 17 23 42 20 18 23 43 20 19 23 44 20 20 23 45 20 21 23 46 20 22 23 47 20 23 23 48 20 24 23 49 20 25 23 50 20 Serial Numbe...

Page 24: ... Amplifier 18 Operation Manual Part Number 34817 Rev C March 2011 Appendix A Options This section describes the options that are available for the GT 1050A Table 14 GT 1050A Options GT 1050A Options Option Number Description 46 Add Rack Mount Kit ...

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