商品簡介
This book introduces reproducible workflows for designing, simulating and validating microstrip-patch MIMO antennas, integrating electromagnetic theory, simulation methods and laboratory exercises.Part I covers fundamentals of SISO/SIMO/MISO/MIMO systems. It points out that impedance matching alone cannot guarantee good MIMO performance; radiation efficiency, embedded patterns and port correlation are equally vital. Core antenna parameters, microstrip transmission-line principles and various feeding schemes are explained, with analytical results treated only as starting points for full-wave verification.Part II addresses patch-antenna implementation. It covers single-polarised patch design, solver comparisons, simulation standards, dual-polarised two-port-patch evaluation and DGS decoupling technology. Dumbbell-shaped DGS reduces port mutual coupling yet brings trade-offs in bandwidth and efficiency.Part III investigates MIMO arrays, explaining array-factor theory, beam-steering, grating lobes and pattern definitions. System-level MIMO metrics, VNA calibration and OTA measurement guidelines are provided. A 2 GHz patch example illustrates the complete design-to-measurement workflow.
