A proposed smartphone design that includes a 4G antenna operating at 860 MHz and a 5G array at 28 GHz is analyzed in XFdtd to determine operating characteristics and any mutual coupling. A brief study of configurations is performed to find the best positioning for each antenna.

Performance of a 12-port handset antenna array operating in LTE bands 42/43 (3400-3800 MHz) and band 46 (5150-5925 MHz) is analyzed in XFdtd for varying hand hold positions on the device.  The results computed include S-parameters, Gain, Efficiency and Envelope Correlation Coefficient.