Forward Throw Antenna Mounting Bracket for Utility Meter
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Solution Overview
Problem
Wireless utility meters face connectivity and retransmission issues due to inadequate characterization of radio frequency performance, failing to meet stringent certification requirements for total isotropic sensitivity and total radiated power, leading to unreliable connectivity and data transmission.
Innovation Solution
A forward throw antenna utility meter assembly with a mounting bracket made of non-conductive materials, positioning the internal dipole antenna forward of the meter components to minimize interference, optimizing impedance matching for improved communication properties and meeting system-level certification thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the antenna is positioned inside the meter components, then the device complexity is reduced, but the total radiated power and total isotropic sensitivity performance deteriorate
Solution Approach 1:
The antenna is extracted from the internal meter components and positioned in the forward throw location, separating it from interfering electronic components while maintaining integration through the mounting bracket structure
Solution Approach 2:
The antenna is repositioned from a three-dimensional space within the meter to a forward throw position, utilizing the spatial dimension in front of the meter to achieve better RF performance while maintaining compact overall design
2Reliability
If the antenna is positioned forward of the meter components, then the total radiated power and total isotropic sensitivity improve, but the device complexity increases
Solution Approach 1:
The mounting bracket merges multiple functions: it serves as the antenna support structure, the antenna mounting mechanism, and the structural element that integrates the antenna assembly with the meter housing, thereby reducing overall device complexity despite the forward throw positioning
3Device complexity
If traditional antenna positioning is used, then the device complexity is low, but connectivity and data transmission reliability deteriorate
Solution Approach 1:
The mounting bracket is designed with specific local properties: non-conductive material in key areas to prevent interference, conductive elements for grounding and shielding, and precise geometric features for antenna positioning, thereby optimizing local electromagnetic environment for improved connectivity
Data Source
AI summary
A utility meter assembly comprising: a plurality of meter components configured for measuring and collecting data, the meter components including a transceiver operative for communications over a network; a faceplate, configured such that meter reading information is displayed on the front of the faceplate; an exterior cover configured to enclose the meter components and the faceplate, wherein the faceplate is forward of the plurality of meter components; an internal dipole antenna that is situated in a space defined between the faceplate and the exterior cover toward the front of the utility meter assembly; and a mounting bracket that supports the internal dipole antenna. The combined sub-assembly of the mounting bracket and the internal dipole antenna is typically situated away from the meter components, so as to minimize interference by the meter components, and thus achieve improved communications properties measured in isotropic sensitivity and radiated power.