Compact Multifunctional Antennas for Wireless Systems

Eng Hock Lim, PhD, is currently an Assistant Professor in the Department of Electrical and Electronic Engineering at the Universiti Tunku Abdul Rahman.Kwok Wa Leung, PhD, is a professor in the Department of Electronic Engineering at the City University of Hong Kong.

• Preface ix1 Compact Multifunctional Antennas in Microwave Wireless Systems 11.1 Introduction 11.2 Microwave Components in Wireless Systems 61.3 Planar and Nonplanar Antennas in Compact Wireless Systems 71.3.1 Performance Parameters 81.3.2 Planar Antennas 141.3.3 Nonplanar Antennas 161.4 Multifunctional Antennas and Microwave Circuits 171.4.1 Active Antennas 181.4.2 Passive Antennas 191.5 Miniaturization Techniques for Multifunctional Antennas 191.6 Design Processes and Considerations 201.7 Design Tools and Software 221.8 Overview of the Book 242 Multifunctional Passive Integrated Antennas and Components 292.1 Development of Passive Integrated Antennas and Components 292.2 Antenna Filters 302.2.1 Dielectric Resonator Antenna Filter 312.2.2 Other DRAFs 462.2.3 Microstrip-Based Antenna Filters 502.3 Balun Filters 602.3.1 Ring Balun Filter 602.3.2 Magnetic-Coupled Balun Filter 642.3.3 Rectangular Patch Balun Filter 652.4 Antenna Package 672.4.1 DRA Packaging Cover 702.4.2 Other Antenna Packages 782.5 Conclusions 803 Reconfigurable Antennas 853.1 Introduction 853.2 Design Considerations and Recent Developments 863.3 Frequency-Reconfigurable Antennas 883.3.1 Frequency-Reconfigurable Slot-Loaded Microstrip Patch Antenna 913.3.2 Frequency-Reconfigurable E-Shaped Patch Antenna 933.4 Pattern-Reconfigurable Antennas 983.4.1 Pattern-Reconfigurable Fractal Patch Antenna 1033.4.2 Pattern-Reconfigurable Leaky-Wave Antenna 1053.5 Multi-Reconfigurable Antennas 1093.6 Conclusions 1124 Receiving Amplifying Antennas 1174.1 Introduction 1174.2 Design Criteria and Considerations 1184.3 Wearable Low-Noise Amplifying Antenna 1184.4 Active Broadband Low-Noise Amplifying Antenna 1284.5 Conclusions 1395 Oscillating Antennas 1455.1 Introduction 1455.2 Design Methods for Microwave Oscillators 1455.2.1 Design Using S Parameters 1465.2.2 Design Using a Network Model 1475.2.3 Specifications of Microwave Oscillators 1475.3 Recent Developments and Issues of Antenna Oscillators 1495.4 Reflection-Amplifier Antenna Oscillators 1525.4.1 Rectangular DRAO 1525.4.2 Hollow DRAO 1585.4.3 Differential Planar Antenna Oscillator 1615.5 Coupled-Load Antenna Oscillators 1675.5.1 Coupled-Load Microstrip Patch Oscillator 1675.5.2 Patch Antenna Oscillator with Feedback Loop 1715.6 Conclusions 1806 Solar-Cell-Integrated Antennas 1856.1 Integration of Antennas with Solar Cells 1856.2 Nonplanar Solar-Cell-Integrated Antennas 1886.2.1 Solar-Cell-Integrated Hemispherical DRA 1896.2.2 Solar-Cell-Integrated Rectangular DRA 2016.3 Planar Solar-Cell-Integrated Antennas 2046.3.1 Solar-Cell-Integrated U-Shaped SPA 2086.3.2 Solar-Cell-Integrated V-Shaped SPA 2196.4 Conclusions 223References 224Index 227