Design of a coplanar microstrip antenna for GPS/Bluetooth applications

Due to rapid development of wireless communication systems, various services are of very much importance in today's day-to-day life. In order to improve the utility efficiency of the limited spectra and spatial resources, different services using the same antenna are required. Such system is presented here. This paper presents coplanar multifunctional microstrip antenna for both global positioning system (GPS) and Bluetooth application. Our antenna consists of two parts: outer square ring patch antenna and centre-fed square patch antenna. Simulation results of this antenna in HFSS are also presented here. Good match is achieved between simulation results in HFSS and hardware measurement. Hence this paper emphasizes on multifunctional microstrip antenna which can radiate or operates on two different frequencies simultaneously.