Quadplexer Signal Routing for Overlapping Carrier Aggregation Bands

The patent combines multiple frequency band handling functions into a single quadplexer by implementing dynamic signal routing. The quadplexer receives signals from multiple antennas across different frequency bands (first through fourth bands) and routes them to appropriate band filters and LNA channels, eliminating the need for separate quadplexers for each frequency band pair.

The quadplexer is designed with universal functionality to handle multiple frequency bands simultaneously. It includes multiple input ports connected to different antennas and multiple output ports connected to different band filters, enabling it to process first through fourth frequency bands through a single device with configurable signal paths.

The patent segments the frequency spectrum into distinct bands (first through fourth bands) and assigns dedicated band filters to each frequency range. The single quadplexer routes signals from multiple antennas to the appropriate filtered paths, ensuring that signals from different frequency bands are separated and processed independently, thus preventing interference.

Band filters act as intermediary components between the quadplexer and the signal processing chains. These filters selectively pass specific frequency bands while blocking others, serving as mediators that prevent harmful interactions between different frequency signals within the unified quadplexer architecture.