SOURCES SOUGHT
A -- KA-BAND SOLID STATE POWER AMPLIFIER (SSPA) FOR THE SOLAR DYNAMICS OBSERVATORY (SDO) PROJECT
- Notice Date
- 12/11/2002
- Notice Type
- Sources Sought
- Contracting Office
- NASA/Goddard Space Flight Center, Code 210.S, Greenbelt, MD 20771
- ZIP Code
- 20771
- Solicitation Number
- SDO-0002-GDJ
- Archive Date
- 12/11/2003
- Point of Contact
- Carlos R McKenzie, Contracting Officer, Phone (301) 286-0599, Fax (301) 286-0214, Email Carlos.R.McKenzie@nasa.gov
- E-Mail Address
-
Email your questions to Carlos R McKenzie
(Carlos.R.McKenzie@nasa.gov)
- Description
- NASA/GSFC is hereby soliciting information from potential sources, comments, and inputs concerning the availability, cost, and specifications of a Ka-Band Solid State Power Amplifier (SSPA) for the Solar Dynamics Observatory (SDO) Project. SDO is the first mission under the Living with a Star (LWS) Program as part of the Sun Earth Connection. SDO will be made up of 3 instruments seeking to characterize the dynamic state of the Sun, thus enhancing our understanding of the solar process and space weather. SDO is viewed as a follow on to the highly successful Solar and Heliospheric Observatory (SOHO) mission. SDO will be a three-axis stabilized satellite, geosynchronous orbit at ~105?W longitude, and mission life of 5 years with consumables for 10 years. SDO will provide a continuous downlink of high rate data (150-200 Mbps, Reed Solomon and Rate ? Convolutionally Encoded). The transmitted data will SQPSK modulate a Ka-band carrier (25.5-27 GHz) in the SDO modulator/exciter. The exciter will drive the SSPA, which will generate 5 to 10 Watts RF into a 0.5 meter dish, yielding an EIRP from the spacecraft of 44-47 dBW. Other preliminary specifications for the SDO SSPA are as follows: 1. Spacecraft bus voltage: 28 +/- 7 volts 2. RF input power: 0 dBm min. 3. RF output power (including output isolator): +37 to +40 dBm min. 4. Output frequency/bandwidth: ~26.5 GHz +/- 250 MHz min. 5. Gain flatness (peak-to-peak) across band: 0.3 dB 6. AM/PM: <= 8 degrees 7. Phase nonlinearity across band (peak-to-peak): 3.5 degrees 8. Operational temperature range (baseplate): 0 to +50 C 9. RF input connector: K-female (2.9 mm jack) 10. RF output connector: WR-34 11. SSPA telemetry: internal PA temperature, RF output power, TBD electrical interface 12. Input and output VSWRs: 1.5:1 or better 13. Random Vibration test profile (all axes, 2 minutes duration per axis): 0.013 g2/Hz at 20 Hz, +6 dB/octave from 20-50 Hz, 0.08 g2/Hz from 50-800 Hz, +6 dB/octave from 800-2000 Hz, 0.013 g2/Hz at 2000 Hz, 10.0 grms overall. 14. Shock requirement: Shock specification is TBD, not to exceed the following spectrum (max. at the source): 10g from 10-100 Hz, 10-2000g from 100-1000 Hz, and 2000g from 1000-10,000 Hz. 15. Parts radiation requirement: Dependent on enclosure material/thickness. For example, radiation requirement is 120 krad total dose with a 100 mil thick Al enclosure, or 30 krad total dose with a 200 mil thick Al enclosure. 16. Parts quality requirement: Quality Level 1 (per GSFC 311-INST-001) parts shall be selected when readily available. For those parts not readily available, Quality Level 2 parts, with additional testing as required by GSFC, shall be acceptable. 17. Total mass: 2 kg. max. 18. Required DC input power: < 35 Watts for 5 W RF output, < 70 Watts for 10 W RF output NASA/GSFC may procure up to three (3) flight Ka-band SSPAs. However, in order to accurately specify the requirements of the SSPA, the SDO project seeks feedback from industry regarding the above specifications. Responses from industry that have expertise in providing Ka-band Solid state power amplifiers and associated equipment is encouraged. In addition to the technical questions above, please indicate your company?s relevant history associated with the development of Ka Band space flight or military hardware. Also, feedback regarding any other relevant specifications not mentioned is requested. Are any of the specifications not realistic with respect to today?s technology, a significant cost driver to achieve that performance, or unnecessarily over specified to achieve the necessary performance? For Traveling Wave Tube Amplifier (TWTA) manufacturers, please explain why a TWTA may be a reasonable alternative to an SSPA for this application and compare relevant specifications. All information received will be combined and used for government procurement and planning purposes. Sources are urged to describe their approach in enough detail so that NASA can plan for subsequent proposal opportunities for which proprietary information may be appropriate. The information received in response to this RFI will be reviewed and summarized by a panel of government and industry experts. Some or part of the summarized and synthesized recommendations may or may not form the basis of a future NASA solicitation. Interested offerors/vendors having the required specialized capabilities to meet the above requirement should submit a capability statement of twelve(12) pages or less indicating the ability to perform all aspects of the effort described herein. Responses must include the following: name and address of firm, size of business; average annual revenue for past 3 years and number of employees; ownership; whether they are large, small, small list of customers covering the past five years (highlight relevant work performed, contract numbers, contract type, dollar value of each procurement; and point of contact - address and phone number). Technical questions should be directed to: Mr. Michael Powers. Procurement related questions should be directed to Carlos McKenzie. Please advise if the requirement is considered to be a commercial or commercial-type product. A commercial item is defined in Internet "Note A". [INTERNET ONLY (commercial product definition)] No solicitation exists; therefore, do not request a copy of the solicitation. If a solicitation is released it will be synopsized in FedBizOpps and on the NASA Acquisition Internet Service. It is the potential offerors responsibility to monitor these cites for the release of any solicitation or synopsis. This synopsis is for information and planning purposes and is not to be construed as a commitment by the Government nor will the Government pay for information solicited. Respondents will not be notified of the results of the evaluation. Respondents deemed fully qualified will be considered in any resultant solicitation for the requirement. The Government reserves the right to consider a small business or 8(a) set-aside based on responses hereto. Responses may be sent via electronic mail, regular mail, or fax to: Mr. Mike Powers NASA/Goddard Space Flight Center Code 567 Bldg. 19, Rm. S-34 Greenbelt, MD 20771 EL: (301) 286-4820, Fax (301) 286-1750 E-mail: Michael.K.Powers@nasa.gov Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html
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