Ultrawideband Radar

3

Signal Waveform Variations in Ultrawideband Wireless Systems: Causes and Aftereffects

Igor Y. Immoreev

CONTENTS

3.1 Introduction

3.1.1 Narrowband and Ultrawideband Signals

3.1.2 Signal Waveforms, Bandwidth, and Propagation Effects

3.2 Change of UWB Signal Waveforms during Radiation

3.2.1 Analysis of UWB Radiation: Introduction and Background

3.2.2 How Antennas Radiate UWB Signals

3.2.3 UWB Antenna Far-Field Radiation Effects

3.3 Radiation Patterns of UWB Antenna

3.3.1 How the Radiated Waveform Varies with the Observation Angle

3.3.2 Time-Domain Radiated UWB Field

3.4 Determination of Variation in the UWB Signal Waveform during Reception and the Resulting Antenna Reception Pattern

3.4.1 How UWB Pulse Waveforms Vary with the Observation Angle ...