Abstract: An electronic device that uses an arbitrary transmit polarization is described. This electronic device includes: a first antenna having a first predefined polarization; and a second antenna having a second predefined polarization, where the second predefined polarization is different from the first predefined polarization. During operation, an interface circuit in the electronic device selectively transmits, from the first antenna, first wireless signals corresponding to the packet or the frame. Moreover, the interface circuit selectively transmits, from the second antenna, second wireless signals corresponding to the packet or the frame, where the second wireless signals have a same magnitude as the first wireless signals, and the second wireless signals are transmitted from the second antenna concurrently (or at the same time) as the first wireless signals are transmitted from the first antenna. Note that the interface circuit may dynamically modify the transmit polarization during the communication.

Abstract: Methods and systems for selecting one of a plurality of antennas to be used as a transmit antenna based on an orientation of a user device are described. A user device determines an orientation of the user device, and selects one of multiple antennas to use as a first transmit antenna based on the orientation of the user device. The user device transmits information using the first transmit antenna.

Abstract: Methods and systems for selecting one of a plurality of antennas to be used as a transmit antenna based on an orientation of a user device are described. A user device determines an orientation of the user device, and selects one of multiple antennas to use as a first transmit antenna based on the orientation of the user device. The user device transmits information using the first transmit antenna.