Frequency and time domain analysis of a novel UWB antenna with dual band-notched characteristics

This paper presents the dual band notch characteristics of Ultra wideband (UWB) monopole antenna. Proposed antenna (30 x 30 mm(2)) consists of arrow shaped patch and truncated ground plane. Operating range of the proposed antenna (voltage standing wave ratio, 2) is 2.2-11 GHz. In order to achieve dual band stop characteristics, l/2 open ended angularly separated slit pair has been inserted on the radiator for world interoperability for microwave access (WIMAX) (3.3-3.9 GHz) band rejection performance and wireless local area network (WLAN) (5.1-5.9 GHz) band rejection has been realized by introducing a pair of angularly separated lambda/2 conductor backed plane (CBP). Using proper adjustment of angular separation for both slit pair and CBP pair, enhanced band rejection can be achieved for the WIMAX and WLAN band, respectively. The performance of antenna has been investigated in terms of frequency domain and time domain to assess its suitability in UWB communication.