Broadband Wireless Access System Antennas: Concepts and Designs

  • K. Kagoshima
  • K. Uehara
  • Y. Takatori
  • T. Hori
  • K. Cho
Conference paper

Abstract

New concepts are required to realize really effective antennas for broadband wireless access systems. Broadband wireless access system antennas cannot be the same as existing wireless system antennas, such as those for fixed terrestrial systems and narrow band mobile communication systems. The difficulties arise because broadband systems need tracking wireless terminals and mitigating multi-path phenomena. Differences in design procedure for broadband wireless antennas are described and it is pointed out that the design objects of antennas must be determined by evaluating all transmission line phenomena. Practical and effective antennas for broadband wireless access systems are described which have been developed in the NTT Wireless System Laboratories. The possibility of developing an adaptive antenna is also investigated as a powerful antenna of the future.

Keywords

Access System Antenna Pattern Transmission Quality Beam Antenna Phase Array Antenna 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. 1.
    T.Habuka, and H. Sekiguchi, “Standardization for Personal Handy Phone (PHP)”, NTT Review, Vol. 5, No. 5, pp. 101–105, Sept., 1993.Google Scholar
  2. 2.
    K. Kagoshima, K. Uehara, and T. Hori, “A miniaturized Dual Polarization Antenna for a Small Wireless Terminal”, IEEE AP-S’96, pp. 1092–1095, 1996 July, in Baltimore.Google Scholar
  3. 3.
    H. Matsue, M. Umehira, and A. Hashimoto, “Future Trend of Broadband Wireless Access Systems and their Core Technologies”, MWE’96 Microwave Workshop Digest, pp. 271–276, 1996 December in Yokohama.Google Scholar
  4. 4.
    T. Maruyama, K. Uehara and K. Kagoshima, “Analysis and Design of Multi-Sector Monopole Yagi-Uda Array Mounted on a Ground Plane Using Moment Method”, IEE CEM’96, pp.289–294, April, 1996 in Bath, England.Google Scholar
  5. 5.
    Y. Takatori, K. Uehara and K. Kagoshima, “A Study of Vertical Plane Beam Control Method of Adaptive Array in Indoor Multipath Environment”, A P96-169, Feb. 1997 Technical Report of IEICE(Japan ), Feb., 1997.Google Scholar
  6. 6.
    T. Tsutsumi and K. Ujie, “Altair products of 19GHz radio LAN system”, MWE’93 Microwave Workshop Digest, pp. 201–206, 1993.Google Scholar
  7. 7.
    K. Uehara, T. Seki, and K. Kagoshima, “Indoor propagation calculation considering antenna patterns using geometrical optics method”, Trans. oflEICE, Vol.J-78-B-II, No.9, pp.593–601 1995. 9.Google Scholar
  8. 8.
    Y. Takatori, K. Uehara, and K. Kagoshima, “A Study of Adaptive Array Performance in Indoor Multipath Environment”, Technical Report of IEICE(Japan), AP96-102, Dec., 1996.Google Scholar
  9. 9.
    T. Shirato, T. Hanazawa, T. Okada, and T. Maruyama, “A 19 GHz Band Wireless LAN”, NTT R&D, Vol. 45, No. 8, pp. 797–806, Aug., 1996.Google Scholar
  10. 10.
    T. Maruyama, K. Uehara, and K. Kagoshima, “Design and analysis of small multi-sector antenna for wireless LAN’s made by monopole Yagi-Uda array antenna”, Trans, of IEICE, Vol.J-80-B-II, No.5, pp.424–433, 1997. 5.Google Scholar
  11. 11.
    T. Seki, K. Uehara, and K. Kagoshima, “Rod Type Sector Antennas for High-Speed Wireless Communication”, Technical Report of IEICE(Japan), A-P96-169, Feb., 1997.Google Scholar
  12. 12.
    K. Uehara, T. Seki, and K. Kagoshima, “A Planner Sector Antenna for Indoor High- Speed Wireless Communication”, IEICE Trans, on Com. Vol.E79-B, No. 12, pp.1773–1777, Dec., 1996.Google Scholar
  13. 13.
    Y. Kishino, K. Uehara, T. Hamane, Y. Takatori, and K. Kagoshima, “Null Beam Antennas for Indoor High-Speed Wireless Communication Systems”, Proceedings of the 1997 IEICE General Conference, B-1-89, March, 1997.Google Scholar
  14. 14.
    Y. Kishino, K. Uehara, and K. Kagoshima, “A Study of Diversity Using Null Beam Antennas for Indoor High-Speed Wireless Communication Systems”, Proceedings of the 1997 Communications Society Conference of IEICE, B-1-25, Sept., 1997.Google Scholar

Copyright information

© Springer-Verlag London Limited 1998

Authors and Affiliations

  • K. Kagoshima
    • 1
  • K. Uehara
    • 1
  • Y. Takatori
    • 1
  • T. Hori
    • 1
  • K. Cho
    • 1
  1. 1.NTT Wireless Systems LaboratoriesJapan

Personalised recommendations