Shokri, Majid, Rafii, Vahid, Karamzadeh, Saeid, Amiri, Zhaleh and Virdee, Bal Singh (2015) CPW-fed printed UWB antenna with open-loop inverted triangular-shaped slot for WLAN band filtering. International Journal of Microwave and Wireless Technologies. pp. 1-6. ISSN 1759-0787
A compact CPW-fed printed monopole slot antenna is presented for ultra-wideband (UWB) applications. The antenna comprises of a dome-shaped radiating element in which embedded is an open-loop inverted triangular-shaped slot (TSS). The antenna is fed through a coplanar waveguide to provide an ultra-wide impedance bandwidth of 8.95 GHz (2.58–11.53 GHz) which corresponds to a bandwidth ratio of 1:4.46 for VSWR <2. The antenna possesses a notch band functionality to filter out interfering C-band signals like wireless local-area network (WLAN). The notch band frequency is determined by physical parameters defining the TSS that allows fine control of the notch's location. The proposed antenna also possesses a flat gain response expect at the notched band and occupies a relatively small volume of 25 × 25 × 0.8 mm3 for ease of system integration.
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