By zigzagging two side edges of ail equilateral-triangular microstrip patch
, a novel circularly polarized triangular microstrip antenna is proposed. T
he zigzagged edges are easily formed by indenting a small length of similar
to 0.01 times the parch's side length at the center of the edges. Circular
polarization (CP) operation of the proposed antenna can be achieved by usi
ng a single probe feed Experimental results of the proposed antenna are pre
sented and analyzed. (C) 1999 John Wiley & Sons, Inc.