Low power, light weight, anti-jamming gps antenna

Abstract

A system including (A) N antennas and (B) N interference cancellation modules, each including: (i) a first input port configured to receive an electrical signal which includes a global navigation satellite system portion and an interference portion; (ii) a first bandpass filter; (iii) a first low noise amplifier; (iv) M shifters; and (v) M attenuators, each attenuator is connected to a respective phase shifter. The system further includes (C) M analog signal combiners, each analog signal combiner connected to a respective attenuator; (D) M analog power splitters, each analog power splitter connected to a respective analog signal combiner, and each analog power splitter is configured to provide a respective output; and (E) a control module operably connected to the M analog power splitters and to the N interference cancellation modules. The control module includes: (i) an analog power detector connected to the M analog power splitters to obtain the respective output of the M analog power splitters and to provide power measurements based; and (ii) a microcontroller configured to: (a) obtain the power measurements; and (b) deliver digital control commands to the N interference cancellation modules based on the power measurements.