Antennas

♦ MIMO channel sounding requires multiple element antennas at both Tx- and Rx-sides.

♦ Real antenna array designs suffer from many imperfections.

♦ Especially if a parametric analysis of channel sounding data, e.g., estimation of the azimuth and elevation of multipath components, is desired, the measurement antennas need to be very carefully designed.

♦ Thorough consideration to calibration methods is a must.

♦ Realized and deployed antenna arrays are, e.g.
      ·  Uniform linear patch antenna array (ULA)
      ·  Dual-polarized uniform linear patch antenna array
      ·  Uniform rectangular patch antenna array (URA)
      ·  Uniform circular dipole antenna array (UCA)
      ·  Circular uniform beam antenna (CUBA)'

♦ More detailed information on antenna array design is available from IRK Dresden.