System-Level Integrated Circuits for Phased-Array Antennas

Modules of electronic circuitry that perform the amplitude- and phase-control and the status-monitoring functions for eight-element (2 ×4) subarrays of K-band phased-array antennas have been developed as prototype building blocks for future phased-array antennas. These modules are characterized as, among other things, system-level integrated circuits (SLICs) because they reach a new level of functionality, previously achieved only by use of larger, heavier systems. This functionality is achieved through sophisticated design that incorporates monolithic microwave integrated circuits (MMICs) and other components and involves an unprecedented degree of integration of these components with regard, not only for electrical performance, but also for considerations as diverse as temperature control, size, weight, mass-producibility, reliability, cost, complexity of interconnections, and compatibility with other electronic equipment.