Directivity Enhancement of a Broadband Printed Antenna by Using Two Closely Spaced Strips

Figure 1

Geometries and parameters of the broadband printed antennas. (a) The reference antenna in [12] and two arrangement modes of the proposed printed antennas by adopting two closely spaced strips for directivity enhancement. (b) Type A antenna with inner strip. (c) Type B antenna with outer strip.

(a)

(b)

(c)