Compact planar UWB microstrip antenna with independently controllable dual notch bands
Subhajit Paul, Sandeep Rana, Amit Ranjan Azad, Dalia Nandi, Akhilesh Mohan
Abstract
Abstract This paper introduces a compact microstrip antenna specially designed for ultra‐wideband (UWB) technology with dual notch band (DNB) properties. The antenna consists of a semi‐annular ring‐shaped patch and a partial ground plane. An arc‐shaped slot and a rectangular complementary split‐ring resonator are used to create the DNBs. The UWB antenna operates within a frequency spectrum spanning from 3.15 GHz to 13.57 GHz. DNBs are generated for the frequency ranges of 3.43 GHz to 4.25 GHz and 6.57 GHz to 7.81 GHz to reduce interference from the WiMAX band and X‐band downlink satellite channel, respectively. The DNBs can be tuned separately by tuning the structural parameters of the antenna. Within the UWB frequency range, the simulated and measured data demonstrate that the antenna exhibits good radiation efficiency with nearly bidirectional radiation characteristics in the E ‐plane with a peak gain of 3.5 dBi. The proposed antenna has potential applications in UWB communication, mobile communication, and wireless body area networks due to its compact size and low manufacturing cost.