Design of GSM/LTE multiband application for mobile phone antennas

Design of GSM/LTE multiband application for mobile phone antennas A novel compact multiband planar antenna fed by a microstrip line structure is presented. The proposed antenna is developed for wireless communication applications of the global system for mobile (GSM) communication and long-term evolution (LTE) in different service bands of 900, 1800, 1900, 2300, and 2500 MHz. The antenna has five bands, and the structure is a combination of a monopole antenna and a coupled ground line fabricated on an FR4 substrate. The proposed antenna can be embedded in mobile phones for GSM and LTE applications. The measured peak gains are ∼2.12 and 3.82 dBi for theGSM and LTE bands, respectively.