Patch antenna array

A method for wireless communication, comprising:

• receiving, at a stack of patch radiators that comprises at least one patch radiator having an edge that is nonparallel with at least two edges of a ground plane, a first signal having a first polarization and associated with a first frequency band via a first feed;
• receiving, at the stack of patch radiators, a second signal having a second polarization and associated with the first frequency band via a second feed;
• receiving, at the stack of patch radiators, a third signal having the first polarization and associated with a second frequency band via a third feed;
• receiving, at the stack of patch radiators, a fourth signal having the second polarization and associated with the second frequency band via a fourth feed;
• and
• transmitting, using the stack of patch radiators, a signal based at least in part on the first signal and the second signal, the third signal and the fourth signal, or a combination thereof.

An antenna system, comprising:

• first radiating means for radiating in a first frequency band and disposed in a second layer of a printed circuit board (PCB) above a rectangular ground plane disposed in a first layer of the PCB;
• and
• second radiating means for radiating in a second frequency band and disposed in a third layer of the PCB above the first radiating means in a stacked configuration, wherein:
• each of the first radiating means and the second radiating means comprises at least one edge that is angled relative to both the first edge of the rectangular ground plane and the second edge of the rectangular ground plane.

An apparatus for wireless communication, comprising:

• a set of patch radiators comprising a first patch radiator associated with a first frequency band and a second patch radiator associated with a second frequency band that is higher than the first frequency band, wherein the first patch radiator and the second patch radiator are disposed in a stacked configuration;
• a first feed for the set of patch radiators, the first feed configured to receive a first signal having a first polarization and associated with the first frequency band;
• a second feed for the set of patch radiators, the second feed configured to receive a second signal having a second polarization and associated with the first frequency band;
• a third feed for the set of patch radiators, the third feed configured to receive a third signal having the first polarization and associated with the second frequency band;
• and
• a fourth feed for the set of patch radiators, the fourth feed configured to receive a fourth signal having the second polarization and associated with the second frequency band.