Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 5 Kleinheubacher Berichte 2006 2007 10.5194/ars-5-95-2007 http://www.adv-radio-sci.net/5/95/2007/ http://www.adv-radio-sci.net/5/95/2007/ars-5-95-2007.html http://www.adv-radio-sci.net/5/95/2007/ars-5-95-2007.pdf 95 99 2007-06-12 Correlation properties of dual polarized antennas with finite pattern orthogonality in mobile fading channels G. Armbrecht armbrecht@hft.uni-hannover.de O. Klemp I. Rolfes Leibniz Universität Hannover, Institut für Hochfrequenztechnik und Funksysteme, Appelstr. 9A, 30167 Hannover, Germany Starting from planar broadband log.-per. antenna design, offering the possibility of dual-polarized reception properties, in this article a generalized mathematical approach for rapidly estimating the resulting signal correlation coefficient in a stochastically modeled propagation environment solely based on measured or simulated radiation characteristics of one single antenna element is presented. The obtained results are marking an upper limit and are describing the worst-case scenario according to the signal correlation at the antenna feeding points in terms of line-of-sight (LOS) reception in main beam direction. The knowledge of the derived relationship may be helpful especially for antenna designers to combine antenna performance values with the significant communication system performance parameters, as e.g. in case of Multiple-Input Multiple-Output (MIMO) and diversity configurations. Armbrecht, G., Klemp, O., and Eul, H.: Spherical mode analysis of planar frequency-independent multi-arm antennas based on its surface current distribution, Adv. Radio Sci., 4, 25–32, 2006. Fujimoto, K. and James, J R.: Mobile antenna systems handbook, 2nd Edition, Artech House antennas and propagation library, Boston, London, 2000. Jensen, M A. and Wallace, J W.: A Review of Antennas and Propagation in MIMO Wireless Communications, 52, 2810–2824, 2004. Kermoal, J P., Schumacher, L., Pedersen, K I., Morgensen, P E., and Frederiksen, F.: A Stochastic MIMO Radio Channel Model With Experimental Validation, 20, 1211–1226, 2002. Klemp, O. and Eul, H.: On the MIMO capacity of planar, log.-per. four-arm antennas, The European Conference on Wireless Technology, ECWT, 2005. Klemp, O., Schultz, M., and Eul, H.: Miniaturization Techniques For Logarithmically-Periodic Planar Antennas, IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2004. Klemp, O., Schmitz, O., and Eul, H.: Polarization diversity analysis of dual-polarized log.-per. planar antennas, IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2005a. Klemp, O., Schultz, M., and Eul, H.: Novel logarithmically periodic planar antennas for broadband polarization diversity reception, Int. J. Electron. Commun. (AEUE), 59, 268–277, 2005b. Pedersen, K I., Andersen, J., Kermoal, J P., and Morgensen, P.: A Stochastic Multiple-Input-Multiple-Output Radio Channel Model for Evaluation of Space-Time Coding Algorithms, VTC 2000 Boston, 1, 893–897, 2000. Svantesson, T.: Correlation and Channel Capacity of MIMO Systems Employing Multimode Antennas, 51, 1304–1312, 2002. Taga, T.: Analysis for Mean Effective Gain of Mobile Antennas in Land Mobile Radio Environments, 39, 117–131, 1990.