Abstract. Design of a simple and compact microstrip-fed
printed monopole antenna (PMA) for applications in
wireless local area network (WLAN) and radio frequency
identification (RFID) is presented. The dual-band operation
is achieved from the 9-shaped folded antenna which is
printed on a non-conductor backed dielectric. Measured
percentage impedance bandwidth of the PMA at the center
frequencies of 2.43 GHz and 5.24 GHz are 33.13
(2.14 GHz to 2.99 GHz) and 36.43 (4.40 GHz to 6.36 GHz)
respectively. Consistent omnidirectional radiation patterns
have been observed in both the frequency bands from the
experimental results. The proposed antenna is simple in
design and compact in size. It exhibits broadband impedance
matching, consistent omnidirectional radiation patterns
and appropriate gain characteristics (>2.5 dBi) in
the RFID and WLAN frequency regions.