Telecommunications

New Antennas and Propagation Data Have Been Reported by Investigators at Lund University

  2012 AUG 8 (VerticalNews) -- By a News Reporter-Staff News Editor at Telecommunications Weekly -- Current study results on Antennas and Propagation have been published. According to news reporting originating in Lund, Sweden, by VerticalNews journalists, research stated, "It has been postulated that six colocated orthogonally polarized electrical and magnetic dipoles can offer up to six degrees of freedom (DOFs) in a multipath scattering environment. In other words, a sixfold increase in channel capacity can be achieved in the context of multiple-input-multiple-output (MIMO) systems."

  The news reporters obtained a quote from the research from Lund University, "However, due to the complexity in designing and measuring such a six-port antenna, to our knowledge, no experimental verification has yet been successfully performed. In this paper, the six DOFs hypothesis is experimentally verified at 77 MHz. The experiment involves the design and fabrication of two six-port arrays. In particular, one array is made compact with colocated antenna elements enclosed in a small cubic volume of (0.24 lambda)(3). Using the two arrays, MIMO channel measurements are performed in an RF shielded laboratory in order to measure a multipath scattering environment."

  According to the news reporters, the researchers concluded: "Analysis on eigenvalues of the measured channel shows that six DOFs are attained due to the orthogonality in radiation patterns of the two arrays."

  For more information on this research see: Experimental Verification of Degrees of Freedom for Colocated Antennas in Wireless Channels. IEEE Transactions on Antennas and Propagation, 2012;60(7):3416-3423. IEEE Transactions on Antennas and Propagation can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Transactions on Antennas and Propagation - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8)

  Our news correspondents report that additional information may be obtained by contacting R.Y. Tian, Lund University, Dept. of Elect & Informat Technol, S-22100 Lund, Sweden.

  Keywords for this news article include: Lund, Sweden, Europe, Antennas and Propagation

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