| NOTAS: | "Reports on the latest advances in overcoming some of the basic problems with microstrip antennas, particularly their narrow frequency band. The newest broadband patch designs combine optimal radiating conditions for the antenna elements (thick substrate and low permittivity) with favorable propagation properties for the feed line and circuits. Succumbing to the reality that antennas and circuits cannot be on the same substrate, they physically separate the two structures on opposite sides of a metal plate and couple them through apertures of a variety of shapes." |
