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The proposed UWB antenna covers mobile communications (GSM, EDG, UMTS(3G),LTE(4G)) and wireless networks (WIFI, WiMAX), within a theoretical bandwidthdefined from 780MHz to 4.22GHz. The UWB antenna is designed and realized on aFR-4 substrate with an electrical permittivity of 4.4. It presents a 98.75%average analytical efficiency and an omnidirectional radiation within theprevious bandwidth. The impedance excitation port is fixed at 50 Ohm accordingwith the SMA impedance used in the practical part. The measured results are ingood agreement with those obtained using CST and ADS softwares. The measuredbandwidth, defined from 980MHz to 4.2GHz, presents an efficiency of 94.14%.Furthermore, the practical radiation diagram and the excitation port impedancestay the same as that the simulation one.

UWB patch antenna design and realization in the bandwidth 780 MHz to 4.22 GHz