Steven Shichang Gao & Qi Luo 
Circularly Polarized Antennas [EPUB ebook] 

Preface ix
Acknowledgements xi
Abbreviations and Acronyms xiii
1 Introduction to Circularly Polarized Antennas 1
1.1 Introduction 1
1.2 Antenna Parameters 2
1.3 Basic CP Antenna Types 7
1.4 Antenna Modelling Techniques 23
1.5 Typical Requirements and Challenges in CP Antenna Designs 24
1.6 Summary 25
References 25
2 Small Circularly Polarized Antenna 29
2.1 Introduction 29
2.2 Basic Theory of Antenna Size Reduction 29
2.3 Small CP Patch Antennas 30
2.4 Small Helix, QHAs and PQHAs 46
2.5 Small CP Slot Antennas 53
2.6 Small CP DRAs 59
2.7 Other Small CP Antennas 63
2.8 Summary 66
References 69
3 Broadband Circularly Polarized Antennas 73
3.1 Introduction 73
3.2 Broadband CP Microstrip Patch Antennas 73
3.3 Broadband Helix, QHAs and PQHAs 93
3.4 Spiral Antennas 103
3.5 Broadband CP Slot Antennas 106
3.6 Broadband CP DRAs 116
3.7 Broadband CP Loop Antennas 120
3.8 Other Broadband CP Antennas 123
3.9 Summary 124
References 126
4 Multi-Band Circularly Polarized Antennas 131
4.1 Introduction 131
4.2 Multi-Band CP Microstrip Patch Antennas 131
4.3 Multi-Band QHAs and PQHAs 150
4.4 Multi-Band CP Slot Antennas 158
4.5 Multi-Band CP DRAs 171
4.6 Multi-Band CP Loop Antennas 175
4.7 Other Multi-Band CP Antennas 177
4.8 Summary 186
References 187
5 Circularly Polarized Arrays 191
5.1 Introduction 191
5.2 CP Patch Antenna Arrays 191
5.3 CP Dielectric Resonator Antenna Arrays 203
5.4 CP Slot Array Antenna 210
5.5 CP Printed Reflectarrays 222
5.6 Integrated CP Array and Active CP Array 234
5.7 CP Array with Reconfigurable Beams 243
5.8 Other CP Arrays 252
5.9 Summary 258
References 258
6 Case Studies 263
6.1 Introduction 263
6.2 Dual-Band CP Patch Array for GNSS Reflectometry Receiver on Board Small Satellites 263
6.3 Small Printed Quadrifilar Helix Antenna for Mobile Terminals in Satellite communications 271
6.4 Printed Broadband CP Rectangular Bi-Loop Antenna for RFID Readers 278
6.5 CP Reflectarray for Ka Band Satellite Communications 284
6.6 Circularly Polarized Logarithmic Spiral Antenna with a Wideband Balun 293
6.7 Summary 301
References 303
Index 305

Professor Steven (Shichang) Gao is Chair of RF and Microwave Engineering at School of Engineering and Digital Arts, University of Kent, UK. He is Associate Editor of IEEE Transactions on Antennas and Propagation (2015-), a Distinguished Lecturer of IEEE Antennas and Propagation Society (2014-2016), General Chair of Loughborough Antennas and Propagation Conference (LAPC), UK, 2013, and Chair of Special Session on ‘Satellite Communication Antennas’ in IEEE/IET International Symposium on Communication Systems and Networks, Poland, 2012, etc. He is a Keynote Speaker at AES’2014 (China, 2014), an Invited Speaker at IWAT’2014 (Sydney, 2014), SOMIRES’2013 (Japan, 2013), APCAP’2014 (China, 2014), etc. He is a Guest Editor of IEEE Transactions on Antennas and Propagation for a Special Issue on ‘Antennas for Satellite Communication'(April 2015), an Associate Editor of Radio Science (US), a member of the editorial boards of International Journal of Space Science and Engineering (US), IET Circuits, Devices and Systems (UK) and Chinese Journal of Radio Science (China). He is also the Editor for Wiley Book Series on ‘Microwave and Wireless Technologies’. He is a Fellow of Institute of Engineering and Technology (IET), UK.
He has two books including Space Antenna Handbook (Wiley, 2012) and Circularly Polarized Antennas (Wiley-IEEE, 2014), over 200 technical papers and several patents.
His main areas of expertise are in antennas, smart antennas, phased arrays, MIMO, satellite antenna, RF/microwave/millimetre-wave/THz circuits and RF front ends (high-efficiency RF/microwave power amplifiers, filters), satellite communications, wireless power transfer, UWB radars, GNSS reflectometry, synthetic-aperture radars, remote sensing, electromagnetic modelling and small satellites.