Abstract
AbstractAntennas for private mobile communications are required to have enhanced performance and miniaturization in order to deal with high‐performance mobile communications for the next generation. In this paper, with regard to the polarization diversity H antenna using the correlation between polarizations proposed as a base station antenna, the results of an analysis of the structure, characteristics, and effectiveness of the polarization diversity H‐type antenna in an actual environment obtained from field experiments are presented. The polarization diversity H antenna has a turnstile H element for the horizontal polarization and a dipole for the vertical polarization. The optimum shapes of each polarization antenna are derived. Also, in the diversity configuration, a structure optimizing the directivity and mutual coupling is derived. A field experiment is carried out at 150 MHz, the frequency presently used for operations. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(4): 10–18, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.10078
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