Tunable ila and dila matching for simultaneous high and low band operation

In a wireless communication device, a transceiver module coupled to at least one antenna, the transceiver module comprising:

• at least one processor;
• at least two transceivers including a first transceiver coupled to a first signal path and a second transceiver coupled to a second signal path, wherein the first and second signal paths are coupled to a single, shared narrow band antenna;
• a low band tunable matching circuit coupled within the first signal path to the first transceiver;
• a high band tunable matching circuit coupled within the second signal path to the second transceiver;
• a diplexer circuit coupled to the low band tunable matching circuit and to the high band tunable matching circuit and which provides isolation between low band and high band tunable matching circuits, utilizing diplexer circuit components respectively coupled to the first and second signal paths;
• an antenna tuner controller that:
• configures (a) the low band tunable matching circuit to provide a first antenna matching corresponding to a low band operating frequency to support propagation of a low band signal and (b) the high band tunable matching circuit to provide a second antenna matching corresponding to a high band operating frequency to support propagation of a high band signal;
• configures the diplexer circuit to provide a specified isolation between low band tunable matching circuit components and high band circuit components, enabling the first antenna matching to be provided independently of the second antenna matching;
• and
• provides, using the single, shared narrow band antenna, simultaneous propagation of the low band signal and the high band signal.

A method for configuring an antenna system for simultaneous signal propagation via multiple frequency bands in a wireless communication device, the method comprising:

• providing a first antenna matching to support propagation of a low band signal within a first signal path by utilizing a low band tunable matching circuit coupled within the first signal path;
• providing a second antenna matching for propagation of a high band signal within a second signal path by utilizing a high band tunable matching circuit coupled within the second signal path;
• providing isolation between low band and high band circuit components, utilizing a fixed diplexer circuit coupled to the first and second signal paths, which enables the first antenna matching for the first signal path to be provided independently of second antenna matching for the second signal path;
• and
• simultaneously propagating the low band signal and the high band signal using corresponding signal paths coupled to a single, shared narrow band antenna.