A multiband antenna which is fed by a SMA coaxial probe is investigated in this paper. The proposed antenna is composed of a circular patch and a loop microstrip line. By introducing a loop microstrip line and three probes feeding for the circular patch, the proposed antenna delivers the multiband impedance matching performance. The simulated result shows that the antenna has three frequency bands covering 1.254-1.404 GHz, 1.653-1.746 GHz and 2.142-10.752 GHz for VSWR ＜ 3. Details of the antenna design and results are presented.
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