DESIGN OF DUALBAND PRINTED MONOPOLE ANTENNA
Basically, a microstrip antenna with dual- and multiband
capability developed from single- and double-U-slot has been
investigated [8]. In this development, the antenna is intended to
have a bandwidth with some enhancement. Inspired from this
shape of antenna, a G-patch printed monopole antenna is
proposed with the additional feature in the dualband capability.
Figure 1 illustrates the final design of proposed antenna. It
comprises of 2 side deployed on an FR4-Epoxy dielectric
substrate. The dimension, thickness, and tanδ of dielectric
substrate are 50mm x 50mm, 1.6mm, and 0.002 respectively.
The top side consists of radiating element as the most
important part which is fed by microstrip line extended from
the center pin of 50Ω connector type. Besides as a feeding line,
the microstrip line also serves as a λ/4 transformer to match the
impedance of radiating element and the connector. The
radiating element which is made of metal copper has 2 distinct
arms in different length arrangement yields a shape of G letter.
The longer arm is designed to resonate at lower resonant
frequency for GPS application, i.e. 1.6GHz, whereas the
shorter one is addressed to work at higher resonant frequency
for WLAN application, i.e. 2.4GHz. Furthermore in the bottom
side, a ground plane is printed only under the microstrip line
feeding network. The thickness of metal copper for G-patch
radiating element, as well as feeding line network and ground
plane is 0.035mm.
2012 7th International Conference on Telecommunication Systems, Services, and Applications (TSSA)
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