Antenna module disposed in vehicle

A glass assembly comprising:

• a transparent area;
• an opaque area formed outer to the transparent area;
• and
• an antenna assembly disposed at the glass assembly,
• wherein the antenna assembly comprises:
• a first transparent dielectric substrate;
• an antenna pattern disposed in a first area of the first transparent dielectric substrate that is disposed in the transparent area of the glass assembly;
• a connection pattern connected to the antenna pattern and disposed in a second area of the first transparent dielectric substrate that is disposed in the opaque area of the glass assembly;
• and
• a second dielectric substrate disposed in the opaque area of the glass assembly, wherein the second dielectric substrate comprises a ground conductive pattern and a feed pattern,
• wherein the antenna pattern comprises:
• a signal pattern connected to the feed pattern of the second dielectric substrate and a first ground pattern connected to the ground conductive pattern of the second dielectric substrate, to form a first slot between the signal pattern and the first ground pattern, the first slot configured to radiate a first signal having circular polarization in a first frequency band;
• and
• a second ground pattern connected to the ground conductive pattern of the second dielectric substrate to form a second slot between the first ground pattern and the second ground pattern, the second slot configured to radiate a second signal having circular polarization in a second frequency band lower than the first frequency band,
• wherein the second ground pattern is configured to surround the first ground pattern.

A glass assembly comprising:

• a transparent area;
• an opaque area formed outer to the transparent area;
• and
• an antenna assembly disposed at the glass assembly,
• wherein the antenna assembly comprises:
• a first transparent dielectric substrate disposed at the transparent area of the glass assembly;
• an antenna pattern disposed in a first area of the first transparent dielectric substrate that is disposed in the transparent area of the glass assembly;
• a connection pattern connected to the antenna pattern and disposed in a second area of the first transparent dielectric substrate that is disposed in the opaque area of the glass assembly;
• and
• a second dielectric substrate disposed in the opaque area of the glass assembly, wherein the second dielectric substrate comprises a ground conductive pattern and a feed pattern,
• wherein the antenna pattern comprises:
• a signal pattern connected to the feed pattern of the second dielectric substrate and a first ground pattern connected to the ground conductive pattern of the second dielectric substrate to form a first slot between the signal pattern and the first ground pattern, the first slot configured to radiate a first signal having circular polarization in a first frequency band;
• a second ground pattern electrically connected to the ground conductive pattern and spaced apart from the ground conductive pattern of the second dielectric substrate to form a second slot between the first ground pattern and second ground pattern, the second slot configured to radiate a second signal having circular polarization in a second frequency band lower than the first frequency band,
• wherein the second ground pattern is configured to surround the first ground pattern.