Electronic devices with angular location detection capabilities

An electronic device operable in an environment that includes an external object, the electronic device comprising:

• a first antenna and a second antenna;
• a first voltage standing wave ratio (VSWR) sensor communicably coupled to the first antenna, the first VSWR sensor being configured to perform a first VSWR measurement using radio-frequency signals transmitted by the first antenna;
• a second VSWR sensor communicably coupled to the second antenna, the second VSWR sensor being configured to perform a second VSWR measurement using radio-frequency signals transmitted by the second antenna;
• one or more processors configured to
• identify a first range from the first antenna to the external object based on the first VSWR measurement,
• identify a second range from the second antenna to the external object based on the second VSWR measurement, and
• identify an angular location of the external object based at least on the first range and the second range;
• and
• a housing having peripheral conductive housing structures, wherein the peripheral conductive housing structures include a segment extending between dielectric gaps in the peripheral conductive housing structures, and wherein the first antenna has an antenna resonating element arm formed from the segment.

A method for operating an electronic device having a set of antennas, at least one voltage standing wave ratio (VSWR) sensor communicably coupled to the set of antennas, and one or more processors, the set of antennas including at least two antennas and the method comprising:

• with the set of antennas, transmitting radio-frequency signals;
• with the at least one VSWR sensor, gathering VSWR measurements from the radio-frequency signals transmitted by different antennas in the set of antennas;
• with the one or more processors, identifying a plurality of ranges between the set of antennas and an external object based on the VSWR measurements;
• and
• with the one or more processors, identifying an angular location of an external object based on the plurality of ranges between the set of antennas and the external object, wherein identifying the angular location comprises:
• performing a geometric calculation based on the plurality of ranges and a predetermined spacing between the different antennas in the set of antennas.