Experimental and simulation studies of the probe-fed double U-slot rectangular microstrip antenna

By embedding a pair of U-shaped narrow slots close to the non-radiating edges of a rectangular microstrip patch, a single probe-fed microstrip antenna for broadband operation is proposed. Measurements show that the antenna bandwidth can be as much as 2.6 times that of a corresponding conventional rectangular microstrip antenna. Details of the proposed designs are described, and experimental results are presented and discussed.