Wireless Communication Device Switch Module for Multi-Band Signal Routing

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Solution Overview

Problem

Existing wireless communication devices face complexity in achieving functional multiple signal transmission paths across various frequency bands, such as WLAN, WiMAX, BT, and UWB, due to the need for efficient switching and duplexer configurations to manage different working frequencies.

Innovation Solution

The wireless communication device incorporates a transceiving module with SISO and MIMO chipsets, a switch module with SPDT and DPDT switches, and an antenna module with duplexer support for multiple frequency bands, enabling seamless switching and signal transmission across overlapping and distinct frequency ranges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple antennas and multiple bands are supported to provide multiple signal transmission paths, then the device's communication capability and versatility are improved, but the device complexity increases due to complicated switching and duplexer configurations

Engineering Contradiction:

Improvecommunication capabilityVSAvoidswitching and duplexer configurations

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by designing a single antenna module that can operate across multiple frequency bands (2.4GHz for WLAN, 3.5GHz for WiMAX, 5GHz for BT, and 6GHz for UWB) through integrated duplexer configurations. This allows one antenna structure to serve multiple communication protocols simultaneously, improving versatility without proportionally increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the switching control into discrete SPDT and DPDT switch configurations within the switch module, allowing independent control of signal paths for different frequency bands. This segmentation enables manageable complexity by breaking down the overall switching task into smaller, controllable units while maintaining multiple transmission paths.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If switching modules with SPDT and DPDT switches are used to manage multiple frequency bands, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:

Improveswitching between frequency bandsVSAvoidswitch module structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces SPDT and DPDT switches as intermediary components between the transceiver and antenna modules. These switches act as mediators that automatically route signals between different frequency bands and antenna configurations, simplifying operation by handling the switching logic centrally while increasing device complexity through the addition of controlled switching elements.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS7855984B2Wireless communication device

Publication Date: 2010.12.21 NANNING FUGUI PRECISION IND CO LTD

AI summary

A wireless communication device includes a transceiving module, an antenna module, and a switch module. The transceiving module includes a first transceiver and a second transceiver. The antenna module includes at least a first antenna for transmitting electromagnetic signals in a first frequency range. The switch module switches different connections between the antenna module and the transceiving module, and includes a first switch, a second switch, a third switch, a fourth switch, and a first duplexer.