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CWNA®: Certified Wireless Network Administrator Official Study Guide
book

CWNA®: Certified Wireless Network Administrator Official Study Guide

by David D. Coleman, David A. Westcott
April 2009
Intermediate to advanced content levelIntermediate to advanced
765 pages
19h 26m
English
Sybex
Content preview from CWNA®: Certified Wireless Network Administrator Official Study Guide

Chapter 4. Radio Frequency Signal and Antenna Concepts

IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:

  • Active and passive gain

  • Azimuth and elevation charts (antenna radiation envelopes)

  • Interpreting polar charts

  • Beamwidth

  • Antenna types

    • Omnidirectional antennas

    • Semidirectional antennas

    • Highly directional antennas

    • Phased array antennas

    • Sector antennas

  • Visual line of sight

  • RF line of sight

  • Fresnel zone

  • Earth bulge

  • Antenna polarization

  • Antenna diversity

  • Multiple-input multiple-output (MIMO)

  • Antenna connection and installation

    • Voltage standing wave ratio (VSWR)

    • Signal loss

    • Antenna mounting

  • Antenna accessories

    • Cables

    • Connectors

    • Splitters

    • Amplifiers

    • Attenuators

    • Lightning arrestors

    • Grounding rods and wires

This chapter focuses on the categories and types of antennas and the different ...

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Publisher Resources

ISBN: 9780470438909Purchase book