Reflector antenna system with movable MIMO multiple feeds and adaptive field focusing method for wireless communication in multipath fading environment

A reflector antenna system with movable Multiple-Input and Multiple-Output (MIMO) multiple feeds, comprising a reflector antenna, a signal receiving module, a signal transmitting module, N+1 duplexers, and a memory;

• wherein N is an integer not less than 1, wherein
• the reflector antenna comprises an antenna reflector and a MIMO feed group including N+1 feeds, wherein
• the N+1 feeds are all capable to complete signal receiving and signal transmitting operations;
• the N+1 feeds are all movable to get better Signal to Noise Ratio (SNR) for signals received by and transmitted from the reflector antenna system;
• and
• main beams of the N+1 feeds always point to the antenna reflector;
• the signal receiving module comprises N+1 signal receiving channels, and the signal transmitting module comprises N+1 signal transmitting channels, wherein
• each of the N+1 signal receiving channels and each of the N+1 signal transmitting channels are corresponding to one feed of the N+1 feeds, each of the N+1 signal receiving channels is configured to receive a signal from the one feed of the N+1 feeds and measure an amplitude and a time delay of the signal and to complete time delay compensation to the signal for final synchronous superimposing in time domain and in-phase superimposing in frequency domain;
• each of the N+1 signal transmitting channels is configured to adjust an amplitude and a time delay of a power signal and send the power signal to the one feed of the N+1 feeds for final synchronous superimposing in time domain and in-phase superimposing in frequency domain for wave components radiated by the N+1 feeds connected to different signal transmitting channels and achieving adaptive field focusing at a receiving antenna of a communication target;
• the N+1 duplexers construct respectively N+1 connection correspondences same to each other, wherein
• each one of the N+1 duplexers connects one of the N+1 feeds to one of the N+1 signal receiving channels and one of the N+1 signal transmitting channels forming the N+1 connection correspondences same to each other, in a given connection correspondence, a signal receiving channel and a signal transmitting channel share a same feed, and form a pair of the signal receiving channel and the signal transmitting channel;
• as a result, there are N+1 pairs of the signal receiving channel and the signal transmitting channel in the reflector antenna system, each pair of the signal receiving channel and the signal transmitting channel corresponds a given feed and a given duplexer;
• and
• the memory is used for storing data of amplitude ratios and time delays of received signals measured by each signal receiving channel and sending the data to a corresponding signal transmitting channel of the pair of the signal receiving channel and the signal transmitting channel.