Microwave engineering

EE 4FJ4: Microwave EngineeringInstructor:

Dr. Wei-Ping Huang, CRL Rm. 207, ext. 27696, [email protected]

Teaching Assistants:

Mr. Kevin Zhang, CRL Rm.110, ext.24521, [email protected]

Mr. Faisal Habibullah, CRL Rm.110, ext.24521, [email protected]

Textbooks:

Lecture notes (available in library or from TAs/Instructor)

D.M.Pozar, Microwave Engineering (2nd Ed.), John Wiley, 1998.

In innocence, we see the beginning. In passion, we see the end.

Lao Tse (605-531 BC)

Objectives

• To provide the basic theory pertaining to microwaves and other high-frequency devices and subsystems

• To examine some of its applications to modern communication systems

Motivations

• Practical Reasons:– Useful

– Fundamental

– Increasing important

• Intellectual Reasons– Rigorous

– Elegant

– Challenging

• Energy/power generation & transmission

• Telecommunications

• Other emerging applications

• Laws of EM waves have certain beauty about them that can be appreciated by those who understand them on an aesthetic level.

Course Description

Transmission Line Theory

EM Field & Wave Theory

Lumped Circuit Theory

Microwave Circuit Theory

Waveguides Resonators Antennas

Course Requirements

Lectures & Tutorials

Labs10%

Tests20%

Final70%

Homework Assignments

Laboratories (4)

In-Class Tests (4)

Final Exam

Electromagnetic Spectrum

Photonics:: 0.751.65 m

f: 10-100THz

}

Microwavesf: 300MHz 300GHz

: 1m 1mm

}

As carrier frequency increases, the same relative bandwidth means higher absolute bandwidth!

Communication Bandwidth Available in Optical Fiber Transmission Lines

Progress in Microelectronics

Improvement in system capacityHigher speed, more channels

1

10

100

1,000

10,000

100,000

1,000,000

1995 1997 1999 2001 2003 2005

Source: RHK

Sys

tem

Cap

acit

y (G

bp

s)

Reduction in bandwidth costHigher speed， lower prices