Combined three monopoles for GPS/WLAN/GSM/WCDMA/LTE application

A novel compact antenna is designed on a low-loss ceramic material to support multiband operation as well as to reduce the antenna size. Three monopole antennas with a single feed are designed and combined for wireless device applications, occupying only 10 ?? 10 ?? 3 mm³. Structurally, orthogonal placement of the three monopoles provides a relatively simple design process. Across the entire bands of interest, it is shown that more than 50% of the incident energy radiates into free space. Detailed analysis and measurement results are presented.