A communication device for wireless communication includes a housing having a front dielectric cover, a back dielectric cover, a metal frame circumferentially arranged between the front dielectric cover and the back dielectric cover, and an aperture. The metal frame forms a first antenna that is configured to radiate in a first set of frequency bands. The communication device further includes a circuit arranged inside the housing. The circuit is electrically isolated from the metal frame and includes at least one first feed line coupled to the metal frame and configured to feed the first antenna with a first set of radio frequency signals in the first set of frequency bands. The communication device further includes a second antenna arranged inside the housing and configured to radiate in a second frequency band non-overlapping with the first frequency band.