SILICON AUDIO RF CIRCULATOR LLC
Magnet-free RF circulators using spatio-temporal modulation for non-reciprocal microwave signal routing
- Sector
- Semiconductors
- Headquarters
- Austin, TX
- Total capital
- $2.5M
- Federal grants
- $2.2M
- 4 awards · 2023–2025
- Rank in peer group#6 of 68
- Private capital raised
- None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
- Federal contracts
- $250K
- 1 award · Defense
- Rank in Semiconductors#142 of 707
- Granted patents
- None on recordNo USPTO grants. Applications publish after 18 months.
Capital timeline
Latest events
- Federal grantHealth and Human S · Phase I · High Signal-to-Noise Ratio Miniature Microphones for Hearing Assistive Devices$293K
- Federal grantDefense · Phase II · Topic Number: O23B-001 Topic Title: Dispersion Engineered Electrically Small Antennas Proposal Number: O2-2017 Proposal Title: Dispersion Engineered Passive Matching Loads To Extend The Bandwidth Of Electrically Small Antennas$847K
- Federal grantDefense · Phase I · Small Business Technology Transfer Research Ultra-compact Wideband Electro-optic Modulator Based On Ferroelectric Materials$249K
- Federal grantDefense · Phase II · Magnet-Free Quasi-Electrostatic Circulators and Topological Insulators Based on Temporal Modulation$850K
- Federal contractDefense · 80426 - Osd Bro STTR Phase I - Magnet-free Quasi-electrostatic Circulators And Topological Insulators Based On Temporal Modulation$250K
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Standing among 68 peers
Line = medianSemiconductors · Device
- Federal grants#6 · top 9%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
No founders are linked to this company yet.
Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.
Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026
Claim this profile to add your teamWhat it has protected
No granted patents are on record.
USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.
Checked: USPTO granted patents and published applications · Oct 23, 2026
Related companies, and why
- TERAPROBES INCSimilar federal contract value in Semiconductors · $360K in contracts
- MONSTR SENSE TECHNOLOGIES, LLCSimilar federal contract value in Semiconductors · $274K in contracts
- Carbonics, Inc.Similar federal contract value in Semiconductors · $260K in contracts
- ELECTRONICS OF THE FUTURE, INC.Similar federal contract value in Semiconductors · $240K in contracts
- SOCTERA, INC.Similar federal contract value in Semiconductors · $204K in contracts
- QRONA TECHNOLOGIES LLCSimilar federal contract value in Semiconductors · $190K in contracts
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .