Patent ID: 6573862
Filing Date: 2003-06-03
Classification: H01Q

Abstract:
A phased array antenna comprising:a substrate and a plurality of phased array antenna elements carried thereby; and an element control device for at least one of said phased array antenna elements and comprising an IC die comprising output circuitry, readback circuitry, and control circuitry connected to said output and readback circuitry, an IC package surrounding said IC die, a plurality of output terminals connected to said output circuitry and extending outwardly from said IC package, a plurality of readback input terminals connected to said readback circuitry and extending outwardly from said IC package, and respective external readback connections extending between said plurality of output terminals and said plurality of readback input terminals, said control circuitry causing said output circuitry to output signals on said plurality of output terminals so that said readback circuitry reads back the output signals via said external readback connections and said plurality of readback input terminals for fault detection.