• Direction of Arrival Estimation Improvement for Closely Spaced Electrically Small Antenna Array

      Xin, Hao; Yu, Xiaoju; University of Arizona (International Foundation for Telemetering, 2013-10)
      In this paper, a new technique utilizing a scatterer of high dielectric constant in between electrically small antennas to achieve good Direction of arrival (DOA) estimation performance is demonstrated. The phase information of the received signal at the antennas is utilized for direction estimation. The impact of the property of the scatterer on the directional sensitivity and the output signal to noise ratio (SNR) level are studied. Finally the DOA estimation accuracy is analyzed with the proposed technique under the consumption of white Gaussian noise environment.