An inverted L-strip UWB microstrip antenna

A novel inverted L-strip UWB microstrip antenna is proposed for ultra wide band applications. The proposed antenna posses a method to minimize the monopole antenna by loading of inverted L-strip over the conventional monopole patch antenna to lower the height of the antenna. The ground was vertically extended toward two sides of the single radiator. The antenna is practically fabricated and simulated. Measured results shows a good agreement with simulated results. The prototype with overall size of 25 mm × 25 mm × 1.6 mm achieves good impedance matching, constant gain, stable radiation patterns, and constant group delay over an operating bandwidth of 2.6-13.04 GHz (10.44 GHz).