Abstract
In this paper compact design of planar slot antenna with band-notched function for UWB application is presented. This proposed antenna design explains the method to notch the interfering frequencies in the UWB by loading the small strips over the conventional microstrip patch antenna. To create notch for some narrow bands such as WLAN, WIMAX and X band in the UWB by using slits. This can be done by placing angle shaped slits on the substrate, two symmetrical slits placed on the tapered shaped Ground plane and two narrow slits are etched out on the patch of the antenna. By properly altering the size and location of the slits the proposed antenna design achieves the UWB operation and notch characteristics without altering overall size of the antenna is 22 × 24 × 1.6 mm3. This notch band will help to avoid the possible interference between UWB and these narrow bands. The simulated result gives a good impedance matching, return loss < −10 dB and VSWR below 2 in the frequency range of 3.1–12GHz (a9GHz).
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