Antenna Basics _ FOR 內部訓練 _ 20...

Antenna Basics _ FOR 內部訓練 _ 2008 07 04Antenna Basics
Thomas Wu RDD3 HW 2006.July.31th

Outline
E Introduction E Basic Principles E Antenna types E Examples of mobile phone antennas E Reference

Introduction
E Basic Principles E Antenna types E Examples of mobile phone antennas E Conclusion

Introduction
Applications
Communication Systems Radar Systems Remote Sensing Systems

History
Ampere’s Law Frarday’s Theorem Maxwell’s Equation

History

History

James Clerk Maxwell
(1831 ~ 1879)

Maxwell’s Equation
q

History - 1886

History -1905

Introduction E Basic Principles E Antenna types E Examples of mobile phone antennas E Conclusion

Basic Principles
E Radiation Mechanism E Basic Theories E Antenna Parameters

Radiation Mechanism
Guided wave field J Currents E,H Radiation field J E,H

Basic Theories
E Fa