Resonant Rectangular Series-Fed Patch Array

Image of the Resonant Rectangular Series-Fed Patch Array.

Series-fed microstrip patch arrays are typically used for communication and microwave sensing applications. This light weight, low profile antenna can achieve high gain of up to 20 dBi at a specified squint angle, but due to its resonant nature it typically has a narrow (~2%) bandwidth.

Series-fed patch arrays fall into one of two categories, namely resonant and travelling-wave arrays. The resonant rectangular patch array has better efficiency than the traveling-wave array.

Typical fan beam gain pattern for a 12 element array with a Dolph-Chebychev distribution. .