Antenna bandwidth enhancement for an electronic device

A method of operating an electronic device with a broadband antenna system comprising:

• feeding a first antenna at a first frequency range via a first signal path comprising a first indirect feed;
• feeding a second antenna at a second frequency range via a second signal path comprising a second indirect feed, wherein the first frequency range is lower than the second frequency range;
• and
• feeding a third antenna at the second frequency range via a third signal path comprising a third indirect feed;
• wherein the first antenna is coupled to the second antenna and the third antenna by capacitive coupling elements.

An electronic device with a broadband antenna system comprising:

• a first antenna comprising a straight metal bar disposed along a first surface of the electronic device and coupled to a first transceiver via a first indirect feed;
• a second antenna comprising a first curved metal bar disposed around a first corner of the electronic device adjacent to the first surface and coupled to a second transceiver via a second indirect feed;
• and
• a third antenna comprising a second curved metal bar disposed around a second corner of the electronic device adjacent to the first surface and coupled to a third transceiver via a third indirect feed.