BANDWIDTH ENHANCEMENT OF INSET-MICROSTRIP-LINE-FED EQUILATERAL-TRIANGULAR MICROSTRIP ANTENNA

By embedding a pair of properly-bent narrow slots in an equilateral-tr iangular microstrip patch, broadband operation of microstrip antennas with an inset microstrip-line feed can be achieved. With the proposed antenna design, the impedance bandwidth can be as large as similar to 3.0 times that of a corresponding simple triangular microstrip antenna . Some simple design rules for the proposed antenna have also been det ermined experimentally. The design rules and experimental results are presented and discussed.