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Antennas and Wave Propagation by G. S. N. Raju

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Chapter 3

Radiation and Antennas

“An antenna is an electromagnetic radiator, a sensor, a transducer and an impedance matching device with extensive applications in all communication, Radar and in Bio-Medical systems.”

CHAPTER OBJECTIVES

This chapter discusses

  • Antenna fundamental parameters
  • Antenna properties, characteristics and functions
  • Radiation mechanism
  • Basic antennas and their radiation characteristics
  • Objective questions and solved problems useful for class tests, final examinations and also for competitive examinations
  • Exercise problems to develop self problem solving skills
3.1 INTRODUCTION

An antenna is basically a transducer. It converts radio frequency (RF) electrical current into an electromagnetic (EM) wave of the same frequency. ...

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