D. Sanchezhernandez et I. Robertson, TRIPLE BAND MICROSTRIP PATCH ANTENNA USING A SPUR-LINE FILTER AND A PERTURBATION SEGMENT TECHNIQUE, Electronics Letters, 29(17), 1993, pp. 1565-1566
A triple-band microstrip patch antenna is demonstrated by using a spur
-line bandstop filter and a perturbation segment technique. This multi
frequency operation can be obtained without increasing either the size
or the thickness of the patch. In addition, through experimental resu
lts, the characteristics in all channels are shown to be nearly identi
cal.