Multiband GNSS Antenna Housing With Separated Conductive Regions
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Solution Overview
Problem
Electronic devices face challenges in receiving GNSS signals in multi-bands due to structural restrictions, which can lead to decreased reception performance for both GNSS and wireless communication signals, resulting in inaccurate location information.
Innovation Solution
The electronic device incorporates a housing with separated conductive regions for wireless communication and GNSS receiver circuitry, allowing it to transmit/receive signals in different frequency bands, including 1.4 GHz to 6 GHz and 1559 MHz to 1610 MHz, using a polymeric structure and conductive patterns to efficiently utilize mounting space and maintain signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the antenna is extended to receive GPS L5 signal, then GNSS signal reception capability is improved, but reception performance for wireless communication signal decreases
Solution Approach 1:
The antenna structure is divided into two separate conductive regions: a first conductive region for wireless communication signals and a second conductive region for GNSS signals. This segmentation allows each region to be optimized for its specific function without interfering with the other, resolving the contradiction between improved GNSS reception and maintained wireless communication performance
Solution Approach 2:
The housing structure integrates multiple functions: it serves as both the structural framework and contains embedded conductive regions that function as antennas for both wireless communication and GNSS reception. This multi-functionality allows the device to maintain compact form factor while supporting multiple signal reception capabilities
2Adaptability or versatility
If the antenna is connected with receiver circuitry for GPS L1 and GPS L5 signals, then multi-band GNSS reception is enabled, but reception performance for GPS L5 signal decreases
Solution Approach 1:
The conductive regions are electrically separated into distinct first and second conductive regions, with the second region specifically dedicated to GNSS signal reception. This electrical separation prevents signal interference and impedance mismatches that would otherwise degrade GPS L5 signal reception performance
Solution Approach 2:
The housing structure acts as an intermediary that provides both mechanical support and electrical connection pathways. The conductive regions are integrated into the housing, which serves as a mediator between the antenna elements and the receiver circuitry, enabling optimized signal transmission without direct connection that would cause performance degradation
3Reliability
If separated conductive regions are used for wireless communication and GNSS reception, then signal reception performance is improved, but device complexity increases
Solution Approach 1:
The housing structure is designed to serve multiple purposes: it provides mechanical support, electrical connectivity, and acts as the antenna structure itself through integrated conductive regions. This eliminates the need for separate antenna components and reduces overall device complexity while maintaining improved signal reception performance
Solution Approach 2:
The antenna structure is merged with the housing, combining what would traditionally be separate components (housing and antenna) into a single integrated structure. The conductive regions are formed as part of the housing, reducing the number of discrete parts and simplifying assembly while enabling separated signal paths for different functions
Data Source
AI summary
An electronic device according to an embodiment of the disclosure includes a housing that includes a first plate, a second plate facing away from the first plate, and a side member surrounding a space between the first plate and the second plate and including a first conductive region and a second conductive region electrically separated from the first conductive region, a wireless communication circuitry that is disposed within the space, transmits/receives a first signal in a first frequency band ranging from 1.4 GHz to 6 GHz by using the first conductive region, and transmits/receives a second signal in a second frequency band ranging from 0.6 GHz to 1.4 GHz by using the second conductive region, and a GNSS receiver circuitry that is disposed within the space, receives a third signal in a third frequency band ranging from 1559 MHz to 1610 MHz by using the first conductive region, and receives a fourth signal in a fourth frequency band ranging from 1164 MHz to 1189 MHz by using the second conductive region. Moreover, various embodiment found through the present disclosure are possible.