Atch 01 Rqmt Doc_Ka Band Amps.pdf

Requirements Document

FOR

National Radar Cross Section Test Facility (NRTF)

Modular Ka Band Wideband Amplifier

TABLE OF CONTENTS

1. INTRODUCTION

2. PERIOD OF PERFORMANCE

3. PROJECT SCHEDULE

4. TECHNCAL INTERCHANGE AND ACCEPTANCE

5. REQUIRED DOCUMENTS

6. CONTRACTOR CONTACT INFORMATION

1. INTRODUCTION

The US Air Force, National Radar Cross-Section Test Facility (NRTF) at White Sands NM is pursuing a modular design for a wideband, high power, pulsed Ka band amplifier to augment the current Tier III RAMS facility. The Contractor shall meet the minimum requirements stated in this Requirements Document and Appendix 1.0

The design shall be based on integrating and phase cohering 8 (100 W) modules to achieve the desired output. The NRTF will initially procure between 6-10 (100 W) modules which translates to an integrated amplifier of 8 modules with 2 spares.

2. DELIVERY

Delivery of all modules shall occur no later than 31 Dec 21.

3. PROJECT SCHEDULE

The Contractor shall provide a complete milestone schedule that denotes major activities, demonstrations and acceptance testing.

4. TECHNCAL INTERCHANGE AND ACCEPTANCE

The contractor shall conduct the following reviews:

Kick-off/ Technical Interchange Meeting (TIM)

Mid-Term Program Management and Progress Meeting

Acceptance Test (PCA/FCA)

Assembly Drawings

Theory and Operation Manual

These meeting shall be conducted in a format of the Contractor’s choosing and shall cover the overall technical approach, constraints, methods and techniques being examined, performance metrics and results.

5. REQUIRED DOCUMENTS

The Contractor shall provide performance to plan status reports and schedule updates to the AF

Project Manager per the frequency in Table 5-1. All documents are subject to Government acceptance and approval.

Table 5.1 Reporting Requirements

Document Format Frequency

Project Status

Report

MS Word document or email Monthly

Milestone Schedule MS Project, Word, or Excel file

Updated Monthly

PCA Results MS Word 30 Days post milestone

FCA Results MS Word 30 days post milestone

6. CONTRACTOR CONTACT INFORMATION

Upon notice of award, the Contractor shall provide the Contracting Officer and the Government

Project Manager the names and contact information (address, phone number, and email) of a minimum of two (2) Contractor representatives, preferably the contracting agent and project leader.

Any changes in the contact information will immediately be updated by the Contractor as they occur during the duration of this contract and be provided to the Contracting Officer and the

Government Project Manager.

Assembly

Drawings

IGES, DXF, DWG

Compatible

30 days post PCA/FCA

Theory and

Operations Manual

Word or PDF 30 days post PCA/FCA

Frequency 32 GHz to 38 GHz minimum acceptable, 26.5 GHz to 40 GHz desired

Rated OP Pulse: 100 W minimum 130 W nominal

Gain @ rated output power: 50 dB

Prime Power: 120 VAC +/-10%, 50/60 Hz, 1 Phase, or 28VDC via Ext. Power Supply

Input/output Impedance: 50 ohms (VSWR 2.0:1)

RF I/O Connectors: Female 2.92 mm RF In/ WR28 (UG-599/U Flange, 4-40 Threaded) HP Out

Input/output VSWR: 2.0:1

PRF Range: 0 – 100 KHz

Duty Cycle: 10% minimum requirement, 20% desired

Output Power On/Off ratio > 80 dB

TX Bracket (Gating) Pulse Input: BNC Female 50 Ohm TTL Level Rear Panel

TX Bracket Pulse to Pulse Jitter: ±5 ns maximum

TX Bracket Pulse Width Jitter: ±5 ns maximum

Input Pulse to Output Pulse Delay: 500 ns nominal

Spurious Output < 50 dBc

RF Pulse Rise & Fall Time: 30-50 ns maximum

RF Pulse Recovery Time 150 ns (Trailing edge to Leading edge for 2 100 ns pulses within one gate)

RF Pulse to Pulse Stability: 0.2 dB maximum

RF Pulse to Pulse Phase Noise ± 1° Maximum peak to peak

RF Pulse Width 80 ns to 5 sec

RF Pulse Droop <0.5 dB

RF Pulse Overshoot ≤ 5%

RF Pulse Rise and Fall time ≤20 ns from 10% to 90% point

Temperature: 0º to 50º C

Non-operating Temp: -20º to 70º C (50,000 feet max)

Altitude: 10,000 feet

Cooling System: Air cooled, self contained

Modulation: AM/FM/Pulse

Configuration: 5”H x 8”W x 13”D (2 Hub units side by side) must fit in 19” rack shelf width

VSWR Protection against any output mismatch; will operate without damage or oscillation against any magnitude and phase of source and load impedance.

Ethernet Remote Control

Configured to obtain rated output power with an input level of 0 dBm or less.

RF Input Connectors type 2.92mm Female on the Rear Panel

RF Output type WR28 Waveguide on the Rear Panel

Internal Systems Diagnostics with Fault status reporting

Remote Ethernet control for: Power On, Power Off, Status, Operate, Standby and Reset. Commands echoed back with status response.

Lead-Time: Delivery no later than 10 Dec 21

Warranty: 1 Year minimum

Additional Comments: Quotes should include a nominal output power vs frequency plot

Options

For rack mount chassis or modular units, no more than 5 ¼” vertical space for approx. 200 watt output. So for instance for 400 watts no more than 10 ½” vertical rack space, 21” for 800 watts, etc. Units may either be rack mount chassis or shelf mounted as long as forced air cooling is part of the unit(s), they will be housed in an air conditioned enclosure. Depth may be up to 32” deep as long as there is room for external waveguide and combining routing in the case of multiple units being phase combined to achieve desired power output. This is in a 36” deep enclosure so plan accordingly.

Physical Space Limitations: