Wide-Band Microwave Propagation Parameters Using Circular and Linear Polarized Antennas for Indoor Wireless Channels

Theodore S. Rappaport, Dwayne A. Hawbaker

Research output: Contribution to journalArticle

Abstract

This paper presents results of experiments using a variety of antennas inside several buildings. Path loss models are presented for the 1.3 GHz and 4.0 GHz bands, and indicate little difference in indoor path loss throughout the low-microwave region. Results show that line-of-sight (LOS) channels offer significantly more cross-polarization discrimination than obstructed (OBS) channels. A profound result is that directional circularly polarized (CP) antennas always reduce rms delay spread when compared to omnidirectional and directional linearly polarized (LP) antennas in LOS. The variation of rms delay spread as a mobile moves over several wavelengths is also greatly reduced when CP antennas are used.

Original languageEnglish (US)
Pages (from-to)240-245
Number of pages6
JournalIEEE Transactions on Communications
Volume40
Issue number2
DOIs
StatePublished - Feb 1992

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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