Antenna system for portable communication device for millimeter wave communication

A portable communication device, comprising:

• an antenna system that comprises a plurality of antennas configured for mmWave-based cellular communication, wherein the plurality of antennas are distributed at a plurality of different locations in the portable communication device to increase diversity of the antenna system,
• wherein each antenna of the plurality of antennas has a first end configured to communicate in a horizontal polarization and a second end configured to communicate in a vertical polarization that is orthogonal to the horizontal polarization, and
• wherein the plurality of antennas comprises a plurality of different types of antennas to increase sensitivity of the antenna system, and
• wherein a first type of antennas of the plurality of different types of antennas is configured to:
• switch, at the first end, between reception of a first radio frequency (RF) signal in a mmWave frequency and transmission of a second RF signal in the mmWave frequency in the horizontal polarization;
• and
• concurrently with the reception or the transmission in the horizontal polarization, only receive RF signals in the mmWave frequency in the vertical polarization at the second end, wherein the received RF signals is at least one of the first RF signal or other RF signals, and
• wherein a second type of antennas of the plurality of different types of antennas is configured to:
• switch between reception of the first RF signal in the mmWave frequency and transmission of the second RF signal in the mmWave frequency in the vertical polarization at the second end, and
• concurrently with the reception or the transmission in the vertical polarization, only receive the RF signals in the mmWave frequency in the horizontal polarization at the first end, and
• wherein a number of receivers in the plurality of antennas is greater than a number of transmitters in the plurality of antennas.