Patent ID: 6701141
Filing Date: 2004-03-02
Classification: H01Q

Abstract:
An apparatus comprising:a mixed signal integrated circuit having: an analog-to-digital converter (A/D); a digital true-time delay unit coupled to the A/D output, the digital true-time delay unit including a shift register and a multiplexer coupled to the shift register outputs; and a digital-to-analog converter (D/A) coupled to the digital true-time delay unit output; a further mixed signal ASIC; an analog combiner coupled to the D/A output of each mixed signal ASIC; a low pass filter coupled to the output of the analog combiner; a gain control element coupled to the output of the low pass filter; a further A/D coupled to the output of the gain control element; first and second subarrays, each of the first subarray and the second subarray receiving an electromagnetic signal; first and second downconverters respectively coupled to the first and second subarrays; and first and second low pass filters respectively coupled to the first and second downconverters; wherein the first and second low pass filters are respectively coupled to the mixed signal ASIC and the further mixed signal ASIC.