Coupled-fed PIFA with a loop feed for 8-band internal LTE/WWAN laptop computer antenna

In this paper, we present a promising internal laptop computer antenna with an acceptable size of 80 X 10x4 mm for practical applications. The proposed antenna is a coupled-fed PIFA with a loop feed; it can generate two wide resonant modes in the lower and upper bands to cover the desired 8-band LTW/WWAN operation.