Circularly polarized patch antennas, antenna arrays, and devices including such antennas and arrays

A system comprising:

• an antenna comprising:
• (i) a first host patch element with two opposite corners truncated and
• (ii) a first microstrip line connected to a first side of the first host patch element and configured to feed the first host patch element,
• (iii) a second microstrip line having a first end directly connected to a second side of the first host patch element opposite the first side of the first host patch element, and
• (iv) a second host patch element with two opposite corners truncated, the second host patch element having a shape in an orientation that is not flipped in an X plane or a Y plane compared to the first host patch element, the second microstrip line connected to a side of the second host patch element a side of the second host patch element directly connected to a second end of the second microstrip line,
• (v) a third microstrip line having a first end directly connected to a third side of the first host patch element adjacent to the first side of the first host patch element and
• (vi) a first parasitic patch element with two opposite corners truncated, the first parasitic patch element having a shape in an orientation that is flipped in one of an X plane or a Y plane compared to the first and second host patch elements, a side of the first parasitic patch element directly connected to a second end of the third microstrip line:
• and
• a transceiver configured to communicate wirelessly via the antenna.

A method comprising:

• at least one of:
• transmitting outgoing wireless signals and receiving incoming wireless signals using an antenna;
• wherein the antenna comprises;
• (i) a first host patch element with two opposite corners truncated and
• (ii) a first microstrip line connected to a first side of the first host patch element and configured to feed the first host patch element,
• (iii) a second microstrip having a first end directly connected to a second side of the first host patch element opposite the first side of the first host patch element, and
• (iv) a second host patch element with two opposite corners truncated, the second host patch element having a shape in an orientation that is not flipped in an X plane or a Y plane compared to the first host patch element, the second microstrip line connected to a side of the second host patch element a side of the second host patch element directly connected to a second end of the second microstrip line,
• (v) a third microstrip line having a first end directly connected to a third side of the first host patch element adjacent to the first side of the first host patch element and
• (vi) a first parasitic patch element with two opposite corners truncated, the first parasitic patch element having a shape in an orientation that is flipped in one of an X plane or a Y plane compared to the first and second host patch elements, a side of the first parasitic patch element directly connected to a second end of the third microstrip line.