Smart antenna system and method for improving receiving performance thereof
AssigneeElectronics and Telecommunications Research Institute
InventorsYoung Kyun Cho, Bong Hyuk Park, Jung Hoon Oh, Jung Nam Lee, Gweon Do Jo
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Abstract
A smart antenna system according to an exemplary embodiment of the present invention including a beam forming antenna which includes an active antenna and a plurality of parasitic antennas, the system including: a reactance load which is connected to the parasitic antenna; a transceiver which transmits and receives a signal to the beam forming antenna; and an antenna adjusting block which tracks a signal source in real time using a plurality of beam patterns having the largest signal size and forms a beam in a direction having the largest signal size.
Claims15
A smart antenna system including a beam forming antenna which includes an active antenna and parasitic antennas, the system comprising:
- a reactance load that is connected to one of the parasitic antennas;
- a transceiver configured to transmit and receive a signal to the beam forming antenna;
- and
- an antenna adjusting block configured to measure a strength of a signal of a beam pattern for every parasitic antenna, compare the strengths of the signals to fix the beam pattern of a signal having the strongest strength as a first beam pattern and sequentially perform the beam forming while fixing the first beam pattern to track a second beam pattern having the strongest strength of the signal.
An improving method of a receiving performance of a smart antenna system, comprising:
- sequentially performing primary beam forming when entering a receiving mode;
- measuring strengths of signals for beam patterns formed by the primary beam forming and comparing the strengths of the signals of the beam patterns to determine and fix a first beam pattern having the strongest strength of the signal;
- performing secondary beam forming in a state when the first beam pattern is fixed;
- measuring strengths of signals for beam patterns formed by the secondary beam forming and comparing the strengths of the signals of the beam patterns to determine a second beam pattern having the strongest strength of the signal;
- and
- determining a final beam pattern using the first beam pattern and the second beam pattern.
Dependencies are inferred from the claim text.