Analog Signal Processor for Adaptive Antenna Arrays

antenna beamforming;analog processor;smart antennas;analog processing;stochastic approximation;gradient descent;ku band;antenna;Electrical and Computer Engineering

Hossu, Mircea

University of Waterloo

关键词: antenna beamforming;    analog processor;    smart antennas;    analog processing;    stochastic approximation;    gradient descent;    ku band;    antenna;    Electrical and Computer Engineering;   

Others  :  https://uwspace.uwaterloo.ca/bitstream/10012/3461/1/mhossu_masc_thesis_rev5.pdf

瑞士|英语

来源: UWSPACE Waterloo Institutional Repository

【 摘 要 】

An analog circuit for beamforming in a mobile Ku band satellite TV antenna array has been implemented. The circuit performs continuous-time gradient descent using simultaneous perturbation gradient estimation. Simulations were performed using Agilent ADS circuit simulator. Field tests were performed in a realistic scenario using a satellite signal. The results were comparable to the simulation predictions and to results obtained using a digital implementation of a similar stochastic approximation algorithm.