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The Microwave and Millimeter Wave Integrated Circuit (MIMIC) program’s objective was, according to a review by one of its program managers, “to develop microwave/millimeter-wave subsystems for use in military weapon system ‘front ends’ that are affordable, available, and broadly applicable.” The program catalyzed multi-faceted research in materials (gallium arsenide), device design, integration, defect management, manufacturing, and other areas. The work yielded a new infrastructure for MIMIC technology with specific applications proliferating throughout the military and commercial sectors.

Phased-array radar systems were among the technology’s earliest uses for defense, but as the technology progressed toward greater yields and cost reductions, cell phone designers turned to MIMIC-based power amplifiers, which placed far more communications reach in smaller packages than ever before. The program provided foundations for follow-on technology development and has served as a model for subsequent programs for pushing microwave, millimeter-wave, submillimeter-wave and THz-frequency solid-state electronics forward. In 1993, The Space Foundation, citing DARPA’s pivotal role, inducted MIMIC Technology into its Hall of Fame.

In 1999, the first flight test associated with the Miniature Air-Launched Decoy (MALD) program, which begun in 1995, took place. With origins in the tradition of metal radar-confusing chaff dropped from aircraft, the point of MALD was to develop a small, inexpensive decoy missile to counter air defense measures.
DARPA developed the first medium-size endurance unmanned aerial vehicle (UAV), Amber, which directly led to the Gnat 750 UAV and the Air Force-operated Tier 2 Predator UAV used in Bosnia. At altitudes of up to 25,000 feet for periods exceeding forty hours, the Predator aircraft operated successfully as an element of Exercise Roving Sands in early 1995 and was deployed in the Bosnia crisis to support UN/NATO operations. Originally a Navy-Army joint effort, the Predator UAV was transitioned to the Air Force in 1995 for operation and maintenance. The Amber Program was initiated in 1984, under DARPA’s rapid prototyping philosophy.
At a mountaintop event in New Mexico on October 18, 2016, DARPA handed off ownership its Space Surveillance Telescope (SST) from an Agency-led design and construction program to ownership and operation by U.S. Air Force Space Command (AFSPC), which operate the telescope in Australia jointly with the Australian government.
First proposed in 1977 by Japanese researcher Kenichi Iga, the vertical-cavity surface-emitting laser (VCSEL) would have characteristics similar to light-emitting diodes and could be coupled to optical fibers. Over the next decades, a small research community began chipping away at the technical challenges it would take to produce practical VCSEL devices. But not until 1989 when DARPA began a series of programs that would support, among other technology goals, the government-wide High Performance Computing and Communications (HPCC) Initiative, did the financial and institutional resources become adequate to move technical promise toward technological reality. VCSELs could provide short-distance, high-speed digital interconnections that would be important to meet goals of the HPCC initiative. One thrust of this effort led to the formation of the Optoelectronic Technology consortium, which led to an industry-stimulating demonstrating of multi-gigabit optoelectronic interconnect components that were based on VCSELs. At this point, still with some DARPA support, industry began to take the development baton. By 2000, VCSELs began to emerge from their developmental status into applications in fiber-fiber interconnections, optical data storage, and sensing applications. They later subsequent find roles in technologies, such as free-space chip-to-chip communications and atomic clocks, which were supporting or leading players in later DARPA programs.