The Department of Defense, specifically the Army, is seeking proposals for the development of metamaterials based on magnetic shape anisotropy for K-band microwave applications under the Small Business Innovation Research (SBIR) program. The objective is to create a magnetic metamaterial utilizing arrays of ferromagnetic nanoparticles that can operate at room temperature without a bias magnetic field, demonstrating tunability across the frequency range of 2 GHz to 26.5 GHz, with a quality factor exceeding 100. These ultracompact microwave antennas are intended for applications in miniature autonomous vehicles, enabling continuous monitoring of the electromagnetic spectrum for rapid threat detection. The solicitation is currently closed, with the release date on April 17, 2024, and the application due date set for June 12, 2024. For more information, interested parties can visit the official source link at https://www.dodsbirsttr.mil/topics-app/.