volume | PIER Journals

Abstract

In this research work, a new and simple design method of a compact slot antenna with dual notched bands is demonstrated for ultra-wideband (UWB) wireless networks. The presented antenna design is printed on a low-cost FR-4 substrate. Initially, an antenna with improved impedance bandwidth is designed. This is archived by employing the an extra slot with two T-shaped strips which increases the upper-frequency band of the design from 9 to 15 GHz. Later, undesirable bands including 4 GHz C-band, worldwide interoperability for microwave access (WiMAX) at 3.5/5.5 GHz (3.3 to 3.7 GHz and 5.15-5.85 GHz), wireless area network (WLAN) systems at 5-6 GHz (5.15-5.35 and 5.725-5.825 GHz) are eliminated by modifying the upper layer of the antenna using the protruded L-shaped strips inside the square radiation stub and the protruded E-shaped strip inside the feed-line. The proposed antenna offers quite good fundamental properties in terms of impedance bandwidth, gain, fidelity, radiation pattern, etc. A good agreement is observed between the measured and simulated results. Due to the simple structure and excellent performance of the design with controllable band-notch function, the presented microstrip antenna is useful for modern UWB wireless networksand can be an attractive

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Dr. Naser Ojaroudi Parchin

Dr. Haleh Jahanbakhsh Basherlou

Prof. Raed A. Abd-Alhameed