Abstract
AbstractA compact lotus shape dual band microstrip patch antenna is presented in this article. Dual‐band operation for both Bluetooth and ultra wideband (UWB) is covered with low profile, enriched gain, and small size. The lotus shape patch and Sawtooth ground provide smooth impedance bandwidth, and dual band characteristics are achieved. In lower frequency, the antenna cover about 300 MHz from 2.3 to 2.6 GHz (Bluetooth), while in upper frequency, bandwidth is about 7.7 GHz from 3.3 to 12 GHz which covers UWB band. With a dimension of 44 × 42 mm2, the proposed antenna is fed by a microstrip fed line and printed on less expensive FR‐4 substrate. The simulated and measured result of impedance, radiation pattern, gain, and efficiency are fair enough. This antenna shows an omnidirectional radiation pattern across the integrated Bluetooth and UWB bands both theoretically and experimentally. With an excellent impulse response, high fidelity, and quality factor, the proposed antenna is suitable for using dual band frequency of both Bluetooth and UWB without interference between each other.
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