This paper proposed a microstrip antenna with the operating bands of LTE700, LTE900 and LTE1800 for mobile device applications. This antenna was printed using FR-4 substrate material. The overall dimension of the antenna is 135 mm x 32 mm x 1.6 mm with 50 Ω impedance. The usage of ground plane can generate resonant modes to expand the bands at low frequency. Operating frequency bands of the antenna for the LTE and GSM/GPS/IMT-2000 meet the specification with 6 dB return loss.It is well suitable to be used for mobile device application.
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