Antenna Architectures for Future Wireless Devices (Signals and Communication Technology)

Preface
Contents
About the Authors
Abbreviations
1 Introduction to Future Wireless Devices
	1.1 Introduction
	1.2 Taxonomy of Wireless Devices in the Market
	1.3 Evolution of Carrier Frequencies
	1.4 Why Millimeter Waves Hold the Key to the Future?
	1.5 Feasibility of Millimeter Waves for Data Links: A Reality Check
	1.6 Remedies for Establishing the mmWave Data Link
		1.6.1 Power Constraints
		1.6.2 Gains of the Antennas Integrated in Radios
		1.6.3 Distance Between the Radios
		1.6.4 Optimal Recipe for mmWave 5G: A Case Study
	1.7 Outline of the Book
	References
2 Antenna Design Requirements
	2.1 Introduction
	2.2 Antennas of the Previous Generations of Wireless Devices
	2.3 Breakout of a Typical Smartphone
		2.3.1 Detailed Characteristics of Antennas for Smartphones
		2.3.2 Smartphone Usage Modes
	2.4 Antenna Requirements of a Wireless Dongle
	2.5 Antenna Requirements for Wearable Devices
	2.6 Antenna Requirements for Base Stations and Access Points
	2.7 Conclusion
	References
3 Antenna Systems for Smartphones
	3.1 Introduction
	3.2 Data Modes of a Typical Mobile Device
	3.3 Design Candidates for Beam Switching
	3.4 Shared Ground Conformal Antenna Module
		3.4.1 Conformal Array
		3.4.2 Conformal Printed Yagi Antenna
		3.4.3 Shared Ground Beam Switching Module
	3.5 Ultra Compact Vertically Mounted End-Fire Antennas
		3.5.1 Compact Yagi Antenna
		3.5.2 Orthogonal Pattern Diversity Module
	3.6 Overlapped Shared Ground Module
		3.6.1 Compact Wideband Broadside Antenna
		3.6.2 Compact Wideband End-Fire Antenna
		3.6.3 Co-Polarized Overlapped Antenna System
	3.7 Design Guidelines
	3.8 Scope for Research
	3.9 Conclusion
	References
4 Backward Compatible Antenna Systems for Smartphones
	4.1 Introduction
	4.2 Desired Characteristics of Co-designed Antennas
	4.3 Why Multiband Antennas Might Fail for Microwave and mmWave Operations?
	4.4 Co-design of CPS-Fed Sub-6 GHz Antenna with a MmWave Conformal Array
		4.4.1 CPS-Fed Sub-6 GHz Antenna
		4.4.2 mmWave Conformal Array
		4.4.3 Electrically Close Integrated Design
	4.5 Co-design with a Compact Monopole
		4.5.1 Corner Bent mmWave Array with Truncated Aperture
		4.5.2 Panel Mountable Microstrip Fed Microwave Antenna
		4.5.3 Panel Mountable Antenna Assembly
	4.6 Overlapped Co-design of Microwave and mmWave Antennas
		4.6.1 Constituent Antennas of the Antenna Assembly
		4.6.2 Overlapped Co-design of Microwave and mmWave Antennas
	4.7 Uniplanar Design of Broadside mmWave Antenna and a Microwave Monopole
	4.8 Uniplanar Design of End-Fire mmWave Antenna and a Microstrip Fed Microwave Radiator
	4.9 Design Guidelines
	4.10 Scope for Research
	4.11 Conclusion
	References
5 Gain Switchable Antenna Modules
	5.1 Introduction
	5.2 Need for Gain Switchability
	5.3 A Three Port Antenna Module Design
	5.4 A Two Port Shared Radiator Design
		5.4.1 Planar Shared Radiator
		5.4.2 Dual Conformal Shared Radiator
	5.5 Three Port Shared Radiator Design
	5.6 Conclusion
	References
6 Highly Efficient Antennas for the Base Stations
	6.1 Introduction
	6.2 Classification of All-Metallic Antennas
	6.3 Additively Manufactured Antennas
	6.4 Subtractively Manufactured Antennas
	6.5 Cavity Based Antennas
	6.6 Planar or Quasi Planar Antennas
	6.7 Wire or Wire-Based Antennas
	6.8 Design Example of a Planar All-Metallic Antenna
	6.9 Conclusion
	References
7 Pattern Diversity Architectures for Base Stations
	7.1 Introduction
	7.2 Beam Switching in 5G Base Stations
	7.3 High Aperture Efficiency Wideband Antenna
		7.3.1 Metamaterial Loaded Design
		7.3.2 A Stacked Approach for Base Stations
	7.4 ACS Fed Antennas for Base Stations
		7.4.1 Compact ACS-Fed Antenna
		7.4.2 Shared Ground Two Port Design
		7.4.3 A Quasi-Stacking Design for Base Stations
	7.5 Conclusion
	References
8 Feeding Techniques for mmWave Antennas
	8.1 Introduction
	8.2 Microstrip Feeding
	8.3 CPW Feeding
	8.4 Coaxial Feeding
	8.5 ACS Feeding
	8.6 SIW Feeding
	8.7 Aperture Coupled Feeding
	8.8 Conclusion
	References
9 Fabrication Technology for Low-Cost Antennas
	9.1 Introduction
	9.2 What Drives Up the Cost of Manufacturing a Modern Antenna?
	9.3 A 3D-Printed Slide-On Horn Antenna
	9.4 Polycarbonate Based Dual-Polarized Antenna System
	9.5 Conclusion
	References
Index