Split band antenna design

摘要

Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a single radio frequency (RF) feed and a folded monopole element coupled to the single RF feed. The folded monopole element is an integrated WAN/GNSS antenna that receives electromagnetic energy in a first frequency band and receives electromagnetic energy in a second frequency band. The first frequency band is a wireless area network (WAN) frequency band and the second frequency band is a global navigation satellite system (GNSS) frequency band. The apparatus further includes an impedance matching circuit coupled to the single RF feed. The impedance matching circuit includes a diplexer to extract out GNSS frequency signals received by the folded monopole element from WAN signals received by the folded monopole element.

主权项

1. A user device comprising:
a display; a device chassis; a printed circuit board comprising radio frequency (RF) circuitry; a primary antenna structure located at a bottom side of the device chassis, wherein the primary antenna structure comprises:
a first element located at a first corner of the bottom side and coupled to the RF circuitry, wherein the RF circuitry is operable to cause the first element to radiate or receive electromagnetic energy in a first frequency band; anda second element located at a second corner of the bottom side and coupled to the RF circuitry, wherein the RF circuitry is operable to cause the second element to radiate or receive electromagnetic energy in a second frequency band that is lower than the first frequency band; a secondary receive (RX) antenna structure located at a top side opposing the bottom side of the device chassis, wherein the secondary RX antenna structure comprises:
a third element located at a first corner of the top side and coupled to the RF circuitry, wherein the RF circuitry is operable to cause the third element to receive electromagnetic energy in the first frequency band and to receive electromagnetic energy in a third frequency band, wherein the first frequency band is a wireless area network (WAN) frequency band and the third frequency band is a global positioning system (GPS) frequency band; anda fourth element located at a second corner of the top side and coupled to the RF circuitry, wherein the RF circuitry is operable to cause the fourth element to receive electromagnetic energy in the second frequency band.