COFFEE Brewing Innovation: DARPA’s Quest for Next-Gen Filters in the Electromagnetic Spectrum

Introduction In the rapidly evolving landscape of the electromagnetic spectrum (EMS), DARPA’s COmpact Front-end Filters at the ElEment-level (COFFEE) program emerges as a pioneering initiative. Aimed at enhancing the capabilities of Active Electronically Scanned Arrays (AESAs), COFFEE addresses the critical need for heightened performance and adaptability in the modern EMS environment. The radio frequency (RF)…

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