High Frequency Techniques

This textbook is an introduction to microwave engineering. The scope of this book extends from topics for a first course in electrical engineering, in which impedances are analyzed using complex numbers, through the introduction of transmission lines that are analyzed using the Smith Chart, and on to graduate level subjects, such as equivalent circuits for obstacles in hollow waveguides, analyzed using Green’s Functions. This book is a virtual encyclopedia of circuit design methods.

Despite the complexity, topics are presented in a conversational manner for ease of comprehension. The book is not only an excellent text at the undergraduate and graduate levels, but is as well a detailed reference for the practicing engineer.

Consider how well informed an engineer will be who has become familiar with these topics as treated in High Frequency Techniques: (in order of presentation)

Brief history of wireless (radio) and the Morse code

U.S. Radio Frequency Allocations

Introduction to vectors

AC analysis and why complex numbers and impedance are used

Circuit and antenna reciprocity

Decibel measure

Maximum power transfer

Skin effect

Computer simulation and optimization of networks

LC matching of one impedance to another

Coupled Resonators

Uniform transmission lines for propagation

VSWR, return Loss and mismatch error

The Telegrapher Equations (derived)

Phase and Group Velocities

The Impedance Transformation Equation for lines (derived)

Fano's and Bode's matching limits

The Smith Chart (derived)

Slotted Line impedance measurement

Constant Q circles on the Smith Chart

Approximating a transmission line with lumped L's and C's

ABCD, Z, Y and Scattering matrix analysis methods for circuits

Statistical Design and Yield Analysis of products

Electromagnetic Fields

Gauss's Law

Vector Dot Product, Divergence and Curl

Static Potential and Gradient

Ampere's Law and Vector Curl

Maxwell's Equations and their visualization

The Laplacian

Rectangular, cylindrical and spherical coordinates

Skin Effect

The Wave Equation

The Helmholtz Equations

Plane Propagating Waves

Rayleigh Fading

Circular (elliptic) Polarization

Poynting's Theorem

EM fields on Transmission Lines

Calculating the impedance of coaxial lines

Calculating and visualizing the fields in waveguides

Propagation constants and waveguide modes

The Taylor Series Expansion

Fourier Series and Green's Functions

Higher order modes and how to suppress them

Vector Potential and Retarded Potentials

Wire and aperture antennas

Radio propagation and path loss

Electromagnetic computer simulation of structures

Directional couplers

The Rat Race Hybrid

Even and Odd Mode Analysis applied to the backward wave coupler

Network analyzer impedance and transmission measurements

Two-port Scattering Parameters (s matrix)

The Hybrid Ring coupler

The Wilkinson power divider

Filter design: Butterworth, Maximally flat & Tchebyscheff responses

Filter Q

Diplexer, Bandpass and Elliptic filters

Richard's Transformation & Kuroda’s Identities

Mumford's transmission line stub filters

Transistor Amplifier Design: gain, biasing, stability, and conjugate matching

Noise in systems, noise figure of an amplifier cascade

Amplifier non-linearity, and spurious free dynamic range

Statistical Design and Yield Analysis