Reflectarray Antennas

John Huang, PhD, has been with the Jet Propulsion Laboratory, California Institute of Technology, since 1980, where his research activities involve microstrip antennas, mobile vehicle antennas, antenna miniaturization techniques, spacecraft antennas, phased arrays, reflectarrays, and inflatable antennas. He pioneered the development of several major antenna technologies, such as the microstrip reflectarray and the inflatable array antenna. Dr. Huang, an IEEE Fellow, has published extensively and received four U.S. patents and more than twenty NASA Certificates of Recognition.José A. Encinar, PhD, has been at Universidad Politécnica de Madrid since 1980, where he became a Professor of the Electromagnetism and Circuit Theory Department in 1991. His research interests include numerical techniques for the analysis and design of multi-layer periodic structures, frequency selective surfaces, printed arrays, and reflectarrays. He has published extensively and holds three patents on array and reflectarray antennas. Dr. Encinar was a co-recipient of the 2005 H. A. Wheeler Applications Prize Paper Award, and the 2007 S. A. Schelkunoff Transactions Prize Paper Award, given by IEEE Antennas and Propagation Society.

• Preface. Acknowledgments.1. Introduction to Refl ectarray Antenna.1.1 Description of Reflectarray.1.2 Printed Reflectarray.References.2. Development History.2.1 Early Innovations and Developments.2.2 Recent Developments.2.3 Comparison with Similar Technologies.References.3. Antenna Analysis Techniques.3.1 Introduction.3.2 Overview of Analysis Techniques.3.3 Phase-Shift Distribution.3.4 Analysis of Rectangular Patches with Attached Stubs.3.5 Full-Wave Analysis of Multilayer Periodic Structures.3.6 Phase-Shifter Element Based on Single and Stacked Variable-Sized Patches.3.7 Phase-Shifter Element Based on Aperture-Coupled Patches.3.8 Feed Model and Radiation Patterns.References.4. Practical Design Approach.4.1 Element Effects and Selection.4.2 Path Length and Phase Delay Calculation.4.3 Radiation Pattern Calculation.4.4 Refl ectarray Geometry Design.4.5 Refl ectarray Power Handling.References.5. Broadband Techniques.5.1 Bandwidth Limitation by the Refl ectarray Element.5.2 Broadband Phase-Shifter Elements.5.3 Bandwidth Limitation by Differential Spatial Phase Delay.5.4 Broadband Techniques for Large Refl ectarrays.References.6. Dual-Band Reflectarray.6.1 Dual-Band with a Single-Layer Substrate.6.2 Dual-Band with Two-Layer Substrates.6.3 Multiband Refl ectarray with More than Two Frequencies.References.7. Recent and Future Applications.7.1 Infl atable/Thin-Membrane Refl ectarrays.7.2 Contoured Beam Refl ectarrays for Space Applications.7.3 Multi-Beam Reflectarrays.7.4 Amplifying Reflectarray.7.5 Folded Compact Refl ectarray.7.6 Cassegrain Offset-Fed Confi gurations. 7.7 Very Large Aperture Applications.7.8 Beam Scanning Reflectarrays.References.Index.