Antenna with divided ground plane

A removable jacket for a modular communicator, comprising:

• a connector for connecting the jacket to a modular communicator that comprises an antenna and a ground plane for the antenna, wherein the jacket may be conveniently attached to and detached from the communicator;
• an extended ground plane for the antenna;
• and
• at least one ground contact, for connecting said extended ground plane to the ground plane of the communicator,
• wherein the ground plane of the communicator is too short for the antenna to resonate at a desired frequency, but the ground plane of the communicator when connected with said extended ground plane, provides a combined ground plane sufficient for the antenna to resonate at the desired frequency.

A removable jacket for a modular communicator, comprising:

• a connector for connecting the jacket to a modular communicator that comprises an antenna and a ground plane for the antenna, wherein the jacket may be conveniently attached to and detached from the communicator;
• an extended ground plane for the antenna;
• and
• at least one ground contact, for connecting said extended ground plane to the ground plane of the communicator that houses the antenna,
• wherein the ground plane of the communicator is too short for the antenna to resonate efficiently, but the ground plane of the communicator when connected with said extended ground plane, provides a combined ground plane that resonates with greater efficiency.