NuPower Micro L- & S-Band Power Amplifier User Manual
Contents
1. Reverse Voltage amp Over Voltage protection and regulator thermal shutdown provide defenses against user interface issues High Reliability NuWaves selection of conservatively rated components provides high reliability Each NuPower is inspected to IPC A 610 Class II quality standards Applications Unmanned Aircraft Systems UAS Unmanned Ground Vehicles UGV Unmanned Surface Vehicles USV Broadband RF Telemetry RF Communication Systems Software Defined Radios Test Labs Available Options o Fan cooled heat sink with North American AC DC wall plug adapter o Labeled interface cable with banana jack plugs o 1 Watt input drive level Part Number NW SSPA MICRO 5W 1 0 2 5 D30 Document A6028 1000 1201 Rev 1 0 1 NuWaves cies SSS NuPower Micro L amp S Band PA User Manual Engineering 2 NUPOWER MICRO L amp S BAND POWER AMPLIFIER The NuPower Micro L amp S Band PA boasts the smallest form factor of the NuPower family of PAs at 1 3 cubic inches This highly efficient solid state power amplifier provides over 5 watts of RF power across both L and S frequency bands Based on the latest GaN technology NuPower s power efficiency and miniature form factor make it ideal for size weight and power constrained broadband RF telemetry and tactical communication systems The NuPower Micro L amp S band power amplifier takes low SWaP to a new level allowing it to be integrated into the smallest aerial platfor2. required especially for those applications requiring high duty cycle operation e g continuous wave or for extended on time testing Operation without a proper heat sink under these conditions will cause permanent damage to the product and will void the product warranty Document A6028 1000 1201 Rev 1 0 4 NuWaves a Mo SS uPower Micro L amp S Band PA User Manual Engineering 3 SETUP AND OPERATION This section provides specific details for proper operation of the NuPower Micro L amp S Band PA module Following these guidelines will prevent damage to the power amplifier or external equipment 3 1 POWER SUPPLY REQUIREMENTS To operate the NuPower Micro L amp S Band PA ensure that the power supply has adequate overhead to source the current demand of the RF power amplifier The power supply source must provide a typical voltage of 28 VDC with greater than 3 amps capability 3 2 CONNECTING A PROPER LOAD TO THE ANTENNA TERMINAL To prevent damage to the PA the antenna terminal must be terminated into a 50 Q load Examples of a proper load include e Directly connecting to an antenna specified for the frequency range 1 0 GHz to 2 5 GHz Connecting to an inappropriate antenna may result in damage to the PA module e Connecting to a proper antenna through a 50 Q transmission line or coaxial cable Avoid using damaged cables or corroded connectors while attaching the unit to an antenna e Terminating the antenna terminal
3. A could be damaged 4 1 INTERFACE CABLE HARNESS The cable harness that connects the host controller to the 9 pin Micro D connector of the NuPower Micro L amp S Band PA is made up of 9 wires Table 4 NuPower Micro L amp S Band PA Interface Pin Out Definitions Pin No Pin Name I O Description 1 2 V Supply Primary Power 28 VDC 3 4 GND Signal and Power Ground RF Enable Transmit Control Temp Flag s Over temp Indicator Micro DB9 Socket Socket Socket Socket 4 6 Figure 4 Micro D Socket Locations Document A6028 1000 1201 Rev 1 0 6 NuWaves TM _ NuPower Micro L amp S Band PA User Manual Engineering 4 2 DCPOWER The typical supply voltage for the NuPower Micro L amp S Band PA is 28 VDC however the amplifier module is able to support operation over a supply voltage range of 26 to 30 VDC 4 3 GND The signal and power grounds are tied together in the PA module 4 4 RF ENABLE This signal is the logic control input that designates whether the unit is in transmit or standby mode The RF Enable line is pulled high internally placing the PA module in standby mode If the pin is left floating i e not connected the unit will default to standby mode Grounding the pin i e a voltage below 0 2 VDC places the unit in transmit mode The user can either connect the RF Enable line to pins 3 amp 4 on the CTRL PWR interface connector or an open dra
4. RO 5W 1 0 2 5 D30 has a current consumption of 0 85 A 28 VDC max The nominal input drive level for part number NW SSPA MICRO 5W 1 0 2 5 D30 is 30 dBm Table 2 NuPower Micro L amp S Band PA Environmental Specifications Operating Conditions Specification Operating Temperature for 30 to 55 C ambient Continuous Operation 30 to 60 C baseplate gt 5 minutes Operating Temperature for 20 30 to 60 C ambient Duty Cycle 30 to 65 C baseplate Storage Temperature 40 to 85 C 2 2 NUPOWER MICRO MECHANICAL SPECIFICATIONS Figure 2 NuPower Micro L amp S Band PA Mechanical Outline Document A6028 1000 1201 Rev 1 0 3 NuWaves pe NuPower Micro L amp S Band PA User Manual Engineering Table 3 NuPower Micro L amp S Band PA Mechanical Specifications Parameter Specification RF Connectors SSMC female Power Interface Connector 9 Pin Micro D socket Dimensions Lx W x H 1 80 x 1 80 x 0 40 Weight 1 3 oz 2 3 HEAT SINKING The NuPower Micro L amp S Band PA is offered as a stand alone module or with a kit which also includes a fan cooled heat sink with an AC DC adapter and an interface cable Figure 3 The NuPower PA Kit offers out of the box operation for the user The fan cooled heat sink with an AC DC adapter is shown with the NuPower Micro L amp S Band PA Caution The use of external heat sinking is
5. USER MANUAL NUPOWER MICRO L amp S BAND POWER AMPLIFIER MODULE PART NUMBERS NW SSPA MICRO 5W 1 0 2 5 NW SSPA MICRO 5W 1 0 2 5 D30 NuWaves Engineering RF Wireless and Embedded Systems Engineering NuWaves Engineering 132 Edison Drive Middletown Ohio 45044 PH 513 360 0800 FAX 513 539 8782 www nuwaves Itd com product sales nuwaves ltd com NuWaves SS NuPower Micro L amp S Band PA User Manual Engineering 1 NUPOWER PRODUCT LINE OVERVIEW The NuPower family of solid state RF power amplifier PA modules is designed to meet the demanding needs of the Aerospace amp Defense Industrial and Commercial markets Based on the latest gallium nitride GaN technology NuPower s miniature form factor and power efficiency make it ideal for size weight and power constrained broadband RF telemetry and tactical communications systems 1 1 NUPOWER PRODUCT LINE HIGHLIGHTS High Performance Unique combination of broadband coverage miniature form factors and high efficiency Enclosures The NuPower family of power amplifiers is housed in a silver nickel plated aluminum enclosure with mounting holes incorporated into the chassis Completely Characterized The NuPower family of solid state power amplifiers has been completely characterized over temperature voltage and frequency These high performance modules offer significant value for the OEM user or the Systems Integrator User Friendly
6. in logic line capable of sinking 500 uA to place the unit in transmit mode 4 5 TEMP FLAG This signal is a logic level output to indicate an over temperature condition in the NuPower Micro L amp S Band PA A logic high 5 VDC indicates normal operation while a logic low 0 VDC indicates an over temperature condition The NuPower Micro L amp S Band PA incorporates internal logic circuitry that turns off the DC bias to the RF transistors Caution The amplifier should be shut down and allowed to cool off when the over temperature flag is set low to avoid damage to the module Document A6028 1000 1201 Rev 1 0 7 NuWaves NuPower Micro L amp S Band PA User Manual Engineering 5 GETTING HELP APPLICATIONS ENGINEERING NuWaves Engineering offers technical support for basic configuration help and troubleshooting Monday through Friday 8 a m to 5 p m Eastern Time Technical Assistance and Application Engineering Mir Kevin Harrison 513 360 0800 Ext 313 FAX 513 360 0888 Email kevin harrison nuwaves ltd com Sales Mir Bam Huon 513 360 0800 Ext 322 FAX 513 360 0888 Email bam huon nuwaves ltd com NuWaves Home Page www nuwaves ltd com Product Warranty http nuwaves Itd com wp content uploads 2011 04 NuWaves Warranty _Repair pdf 5 1 GENERAL INFORMATION Copyright 2006 2013 NuWaves Ltd All rights reserved The information contained in this user manual is copyright pr
7. into a 50 Q power attenuator with minimum 20 dB attenuation e Connecting to a load capable of dissipating the RF power from the PA module Loads capable of handling 20 Watts min are recommended 3 3 POWERING UP THE MICRO L amp S BAND PA The NuPower Micro L amp S Band PA must be terminated to a proper load before power is applied Refer to Section 3 2 for the specifications of the proper load After the PA is properly terminated the interface cable can be connected to the unit and power can be applied The PA is now ready for operation 3 4 TRANSMIT TURN ON TIME Caution Do not apply transmit data until the PA module is at full power This will prevent loss of data at the beginning of a message The NuPower Micro L amp S Band PA is at full power approximately 500 uS after the RF Enable line goes low ground Therefore transmit data can be applied to the input after 500 uS without loss of data Document A6028 1000 1201 Rev 1 0 5 NuWaves Migi SSS NuPower Micro L amp S Band PA User Manual Engineering 4 HARDWARE INTERFACE e The RF Input connector is SSMC female e The RF Output connector is SSMC female e The pin out definitions for the 9 pin Micro D socket connector are provided in Table 4 In a typical installation the PA module is mated to a host controller board via a cable harness The RF Out SSMC connector is the antenna connection This connection should always be loaded into 50 Q otherwise the P
8. ms flying today The NuPower Micro L amp S Band PA is also available with a 1 watt input drive level version P N NW SSPA MICRO 5W 1 0 2 5 D30 making it ideal for use with L 3 Communications Bandit miniature L and S band transceiver Note 1W Input option does not use first two amplier stages 12VDC_RF 5 VDC BIAS1 BIAS3 RF OUT 37dBm RF IN 1000 2500 MHz OdBm Attenuator EQUALIZER Attenuator inal Gain 140B BIASA Gain AGB Gain 12dB Figure 1 NuPower Micro L amp S Band PA Functional Diagram 2 1 NUPOWER MICRO L amp S BAND PA SPECIFICATIONS Table 1 depicts the NuPower Micro L amp S Band PA s electrical specifications Table 1 NuPower Micro L amp S Band PA Electrical Specifications Parameter Specification _ Frequency Range 1 0 GHz to 2 5 GHz RF Output Power 5 Watts min f RF Gain 37 dB typ 7 dB w 1 Watt input drive level option 2 Harmonic lt 13 dBc f Supply Voltage 28 VDC nominal 2 VDC Current Consumption 1 25 A 28 VDC max Document A6028 1000 1201 Rev 1 0 2 NuWaves eer SSS NuPower Micro L amp S Band PA User Manual Engineering Parameter Specification Nominal Input Drive Level 0 dBm Maximum Input Drive Level 10 dBm standard model only not No damage applicable to 1 Watt input drive level option Power Amplifier Enable GND On Impedance 50 Q Part number NW SSPA MIC
9. otected NuWaves reserves the right to make periodic modifications and product improvements to the NuPower product line and the associated documentation Document A6028 1000 1201 Rev 1 0 8
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