A complex antenna comprising a grounding element having a first and second longitudinal sides; a first antenna, operating in a first wireless network, comprising a first radiating body spaced apart from the grounding element and a first connecting element connecting the first radiating body and the grounding element; a second antenna, operating in a second wireless network, comprising a second radiating body spaced apart from the grounding element and a second connecting element connecting the second radiating body and the grounding element; wherein the first antenna extending from the first side of the grounding element and working in a first lower frequency band and a first higher frequency band; the second antenna extends from the second side of the grounding element and working in a second lower frequency band and a second higher frequency band.