Diversity Receiver Diplexed Filter Architecture
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Solution Overview
Problem
Current diversity receiver (DRx) product architectures face challenges in efficiently supporting both ultra-high band and high-band signals, particularly in integrating multiple frequency bands and communication standards, which leads to increased component count and complexity, and difficulties in achieving good performance across a wide spectrum with a reasonable size.
Innovation Solution
A diversity receiver module is designed with a multiple pole multiple throw switch, ultra-high band and high band filters, and a high-band signal path, allowing for the integration of ultra-high band and high-band signals, and incorporating tunable filters to support various frequency bands, including n77 and n79, with a diplexed configuration to reduce component count and improve performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate filters and switches are used to support both ultra-high band and high-band signals, then signal processing capability is improved, but device complexity and component count increase
Solution Approach 1:
The patent combines multiple separate filters (ultra-high band filter and high-band filter) into a single diplexed filter structure. This diplexer allows both ultra-high band and high-band signals to pass through the same physical filter component by separating them based on frequency, thereby reducing component count while maintaining the ability to process multiple bands simultaneously.
Solution Approach 2:
The diplexed filter structure serves multiple functions: it filters ultra-high band signals, filters high-band signals, and enables both transmit and receive paths to share the same physical infrastructure. This multi-functionality allows a single component to replace what would traditionally require multiple separate components.
2Reliability
If separate signal paths are used for ultra-high band and high-band signals, then signal isolation is improved, but device size increases
Solution Approach 1:
The patent merges separate signal paths into a shared infrastructure using the diplexed filter. Both ultra-high band and high-band signals traverse through the same physical filter component and switching matrix, reducing the overall device footprint while maintaining signal isolation through frequency-based separation and selective switching.
Solution Approach 2:
Instead of separating signals in physical space (different locations), the patent separates them in frequency space using the diplexer. This allows multiple signal paths to coexist in the same physical location by operating at different frequencies, effectively reducing device size while maintaining isolation.
3Ease of manufacture
If traditional DRx architectures are used, then implementation simplicity is improved, but performance across wide spectrum deteriorates
Solution Approach 1:
The diplexed filter structure provides universal support for multiple frequency bands (ultra-high band and high-band) within a single component. This allows the DRx architecture to handle diverse frequency ranges without requiring completely separate processing paths, maintaining implementation simplicity while expanding spectral coverage.
Solution Approach 2:
The patent employs tunable filters that can dynamically adjust their frequency response characteristics. This allows the same hardware architecture to adapt to different frequency bands and operational requirements, improving performance across the wide spectrum while keeping the overall structure relatively simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables efficient signal processing across a wide frequency range, reduces component count, and addresses the anchor interruption problem during high-band SRS signaling, making it feasible to implement high-end features in lower-end products.
Implementation Method 1
an ultra-high band filter configured to filter ultra-high band signals
Implementation Method 2
a high band filter configured to filter high band receive signals
Implementation Method 3
the high band filter being diplexed with the ultra-high band filter
Data Source
AI summary
A diversity receiver module comprising a multiple pole multiple throw switch, one throw being connected to a signal path configured to support both ultra-high band transmit signals and high-band transmit signals, and another throw being connected to an ultra-high band signal path configured to output an ultra-high band receive signal; an ultra-high band filter configured to filter ultra-high band signals, the ultra-high band filter being connected to a pole of the switch via a signal path; a high band filter configured to filter high band receive signals, the high band filter being diplexed with the ultra-high band filter; and a high band signal path configured to output a high-band receive signal, the high band signal path being connected to the high band filter.