Antenna encapsulation

A micro-module, comprising:

• a module substrate having a module substrate surface;
• an antenna disposed on the module substrate surface, the antenna extending along the module substrate surface in a direction parallel to the module substrate surface and extending away from the module substrate surface in a direction perpendicular to the module substrate surface to an antenna top surface thereby defining antenna walls;
• a sealant disposed on the module substrate surface and on at least a portion of the antenna walls extending away from the module substrate to a sealant top surface, wherein the antenna walls and sealant define an enclosed area of the module substrate surface surrounded by the antenna walls and the sealant;
• a module circuit disposed on or in the module substrate in the enclosed area and electrically connected to the antenna and responsive to electrical signals received from the antenna;
• and
• a cap disposed on the antenna top surface and the sealant top surface such that the module circuit is encapsulated,
• wherein the antenna walls are interior walls and the sealant fills all volume between the antenna walls, the cap, and the module substrate except in a volume laterally bounded by the enclosed area.

A micro-module, comprising:

• a module substrate having a module substrate surface;
• an antenna disposed on the module substrate surface, the antenna extending along the module substrate surface in a direction parallel to the module substrate surface and extending away from the module substrate surface in a direction perpendicular to the module substrate surface to an antenna top surface thereby defining antenna walls;
• a sealant disposed on the module substrate surface and on at least a portion of the antenna walls extending away from the module substrate to a sealant top surface, wherein the antenna walls and sealant define an enclosed area of the module substrate surface surrounded by the antenna walls and the sealant;
• a module circuit disposed on or in the module substrate in the enclosed area and electrically connected to the antenna and responsive to electrical signals received from the antenna;
• and
• a cap disposed on the antenna top surface and the sealant top surface such that the module circuit is encapsulated,
• wherein the antenna forms a spiral on the module substrate and the sealant, the antenna walls, the cap, and the module substrate define multiple separately enclosed volumes along the length of the spiral.