Phased array antennas are among the most important enabling technologies for modern space communications, and this book provides a practical, system-minded guide to designing, modeling, calibrating, and verifying them for orbital missions. It brings together the electrical, mechanical, thermal, and operational factors that shape real spacecraft antenna performance, with a clear focus on beam steering, multi-beam coverage, and space qualification.
Readers are guided from mission requirements to implementation details, including link budgets, EIRP and G/T targets, polarization control, spacecraft constraints, and spectrum/regulatory concerns. The text then builds the core principles of array synthesis, showing how element patterns, weighting, phase control, and time-delay techniques influence beam shape, scan range, sidelobes, and wideband behavior.
Key topics coveredArray architectures for single-beam, multi-beam, analog, hybrid, and fully digital systemsElement design, RF front-end integration, and packaging for space usePhase shifters, attenuators, true-time-delay methods, and beamforming networksCalibration, drift correction, beam squint compensation, and in-orbit maintenanceModeling, simulation, test methods, and acceptance planning for qualificationSignal processing methods for beam control and interference suppressionThe book also addresses practical engineering realities such as thermal drift, vibration, radiation exposure, component nonidealities, measurement uncertainty, and control-timing issues. Each major section ties theory to execution, helping readers understand how design choices affect gain, coverage, isolation, and long-term reliability.
Ideal for antenna engineers, RF system designers, spacecraft payload teams, and advanced students, this volume serves as both a technical reference and an implementation guide. Its case studies and step-by-step workflows make it especially useful for teams moving from requirements definition to hardware build, test, calibration, and final mission readiness.