16 chan-Sband Specs.docx

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16 Channel 100W S-Band HPAs Shelf
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N00173-22-RFI-MR11
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This document contains a Request for Information (RFI) for a 16 Channel 100W S-Band HPAs Shelf. The Naval Research Laboratory (NRL) is seeking information from potential sources capable of fulfilling technical requirements for a shelf containing 16 high power amplifier channels operating between 3.1-3.5 GHz. Minimum requirements include 100W of power per channel, 2dB peak-to-peak gain variation, 50% duty cycle, pulse widths from 1-100us, and monitoring/control interfaces. Interested parties should provide contact and capability information, commercial product details, and descriptions of how their solution would meet specifications by June 28, 2022. The anticipated evaluation will be based on best value and technical compliance. Place of performance would be at NRL-DC and the contractor's facility.

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PR# 1301007085

16 Channel 100W S-Band HPAs Shelf Specifications

· Number of RF channels: 16 (minimum)

· Operating Frequency: range must include 3.1-3.5 GHz

· Amplifier class: AB, must permit linear or saturated operation

· RF input for saturated operation: 0 dBm

· Power per channel: 100W (minimum)

· Power gain variation: 2dB peak-to-peak (maximum)

· Duty Cycle: 50% (minimum)

· Pulse width: range must include 1-100 us

· Pulse repetition frequency: 100kHz (minimum)

· Pulse droop: 1dB over 100 us (maximum)

· Pulse rise/fall time: 200 ns (maximum)

· Harmonics power level: -30dBc (maximum)

· Non-harmonic spurious power: -70dBc within 20kHz of carrier, -55dBc beyond (maximum)

· VSWR: 2.0:1 over entire band (maximum)

· Power supply input voltage: 120 VAC, 240 VAC, or 208VAC 3-phase

· Operating temperature: range must include -20 to +40 deg C

· Operating humidity: up to 95% RH

· Cooling: air cooled

· Form factor: 19 inch rack-mount, 8U (maximum). May be split into multiple chassis.

· Output couplers for monitoring and calibration: -30 to -60dB

· RF Input connectors: SMA

· RF Output connectors: N-type

· RF output coupled-port connectors: SMA

Pulse circuit for all channels shall be controlled by a common LVTTL gate input aligned with RF pulse. When gate is low, there shall be no significant output above thermal noise after fall-time.

Unit should have control/monitoring interface accessible by one or more of ethernet/USB/serial which includes at a minimum:

· Individual channel enable/disable

· Monitoring of faults: power supply, over-duty, over-pulsewidth, over-temp

· Status monitoring: temperature, per-channel output level, fan RPM

File details come from the government source that posted it. Updated .