Antenna module, system, and method

A system, comprising:

• a first circuit board;
• a second circuit board coupled to the first circuit board such that the second circuit board is perpendicular to the first circuit board;
• a third circuit board coupled to the first circuit board such that the third circuit board is co-planar with the first circuit board;
• a fourth circuit board coupled to the third circuit board such that the fourth circuit board is perpendicular to the third circuit board and coupled to the second circuit board such that the fourth circuit board is co-planar with the third circuit board;
• a first antenna disposed on the first circuit board and a second antenna disposed on the second circuit board, wherein the first antenna and the second antenna each comprises an inverted L-shaped portion;
• and
• a third antenna disposed on the third circuit board and a fourth antenna disposed on the fourth circuit board, wherein each of the third antenna and the fourth antenna comprise a first parasitic strip and a second parasitic strip opposite the first parasitic strip.

A method, comprising:

• vertically aligning a first substrate with a second substrate, wherein:
• the first substrate has a first thickness and comprises a first antenna;
• the second substrate has a second thickness greater than the first thickness and comprises a second antenna;
• the second antenna comprises a first parasitic strip and a second parasitic strip;
• the first parasitic strip is disposed on a first side of the second substrate;
• and
• the second parasitic strip is disposed on a second side of the second substrate opposite the first side of the second substrate;
• electrically coupling the first antenna to the second antenna;
• and
• clamping the first substrate to the second substrate.

An antenna module, comprising:

• a first antenna disposed on a first substrate;
• and
• a second antenna disposed on a second substrate, wherein the second substrate comprises a first side and a second side opposite the first side, the second antenna comprises a first parasitic strip and a second parasitic strip, the first parasitic strip is disposed on the first side of the second substrate, and the second parasitic strip is disposed on the second side of the second substrate;
• wherein a return loss corresponding to the antenna module is between −10 dB and −25 dB, and a polarization port isolation corresponding to the antenna module is less than −25 dB.