This solicitation closed on August 19, 2026

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DON26BZ04-NV067ClosedSBIR

High Precision Specialized Waveguides for Extreme Temperatures

Department of DefenseNAVY

AI Overview

The Navy seeks specialized waveguides designed to transmit RF signals reliably across X, Ku, K, and Ka frequency bands while withstanding extreme hypersonic temperatures exceeding 1,000°C. These high-precision components must maintain signal integrity and power transmission where traditional RF cables fail under severe thermal conditions.

This summary is AI-generated from the official solicitation.

Key Details

Agency
Department of Defense
Funding Amount
Release Date
July 1, 2026
Due Date
August 19, 2026 (Closed)

Official Description

The use of RF cables has difficulty meeting environmental conditions while maintaining signal integrity and power requirements. Hypersonic surface temperatures can exceed over 1,000-degree C. Waveguides provide high power transmission and might be easier to manage under extreme hypersonic conditions.

The Navy seeks RF transmission that focuses on high frequency, is consistent performance across a vast range of extreme thermal temperatures, and provides long durations of high thermal loads. The...

View on official source

Change History

Status ChangedAug 19, 2026 at 4:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

Status changed from Open to Closed after topic disappearance

Q&A UpdatedAug 11, 2026 at 3:02 PM

High Precision Specialized Waveguides for Extreme Temperatures

Q3 received a new answer: The government will not clarify whether "waveguide" refers to RF transmission components or the RF aperture/surface structure during the solicitation period.

Q&A UpdatedAug 7, 2026 at 9:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

Added answers to 3 of 4 Q&As: PIM is a major concern requiring mitigation; size/weight preference exists but wavelength/materials will dominate; cross-pole transmission desired, no connector preference for Phase I; rapid development methods valued but secondary to primary goals. Q3 remains unanswered.

Q&A UpdatedAug 3, 2026 at 6:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

Added new Q1 on PIM (Passive Intermodulation) concerns and Nickel-based material avoidance. Previous Q1-Q3 renumbered to Q2-Q4. No answers provided yet for any questions.

Q&A UpdatedAug 3, 2026 at 1:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

Added new Q1 with three sub-questions on size/weight targets, preferred RF interfaces (rectangular waveguide or 2.92 mm coax), and specific environmental requirements (thermal, vibration, shock). Original Q1 and Q2 renumbered to Q2 and Q3.

Status ChangedJul 22, 2026 at 1:02 PM

High Precision Specialized Waveguides for Extreme Temperatures

Status changed from Pre-Release to Open

Q&A UpdatedJul 17, 2026 at 6:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

Added Q1 clarifying waveguide definition: RF transmission component behind antenna vs. RF aperture/waveguide structure at vehicle surface. Original Q1 (material selection/manufacturing trade studies) moved to Q2.

Q&A UpdatedJul 7, 2026 at 2:01 PM

High Precision Specialized Waveguides for Extreme Temperatures

This Q&A clarifies that applicants can propose solutions beyond just proving fabrication works—they should consider including methods to streamline material selection, manufacturing trade studies, and qualification planning by upfront identification of evidence gaps and technical risks, expanding the scope of acceptable Phase I approaches.

Opportunity AddedJul 1, 2026 at 12:02 PM

High Precision Specialized Waveguides for Extreme Temperatures

New opportunity: High Precision Specialized Waveguides for Extreme Temperatures

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