Efficient CPW Fed UWB Antenna with Triple Notch Band Characteristics

A novel CPW fed UWB antenna with 4GHz/5.48GHz/7.5Ghz triple notch band features has been proposed. The antenna which has a dimension of 35.4mm×28.8mm, is composed of pentagonal radiating stub with CPW framework. The ultra wide band from 3.03GHz to 11.1GHz frequency range has been obtained and by inserting three simple L shaped regular slots at the ground plane and the stub and optimized in order to achieve desired stop band characteristics. The triple frequency band notched characteristics has been achieved at IMT (International Mobile Telecommunications) advanced system 4th generation mobile communication system (3.4-4.2GHz), WLAN (5.15-5.3GHz) and X Band satellite communication(downlink) (7.25-7.75GHz). The antenna shows broad bandwidth, good impedance match and omnidirectional radiation patterns in the entire frequency range.