Reconfigurable Antenna Using Discrete Housing Elements
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Solution Overview
Problem
Modern wireless communication devices face challenges in antenna design due to the need for multiple frequency bands and modes, leading to increased complexity, cost, and inefficiency, particularly in achieving optimal impedance matching and minimizing size, weight, and power consumption.
Innovation Solution
A reconfigurable antenna system using discrete conductive elements arranged aesthetically on the device's exterior, with switches to selectively couple elements for different frequency operations, and radio-frequency chokes to reduce coupling and enhance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate antennas are used to cover different frequency bands and RATs, then frequency band coverage and RAT compatibility are improved, but device size, weight, power consumption, and manufacturing complexity increase
Solution Approach 1:
The patent combines multiple antenna elements into a single integrated antenna structure that can operate across multiple frequency bands and support different RATs. The antenna structure includes multiple conductive elements arranged in specific geometric patterns that can be selectively activated to achieve different operating modes, thereby reducing the total number of separate antennas needed while maintaining comprehensive frequency band coverage and RAT compatibility.
Solution Approach 2:
The patent designs a universal antenna structure that can perform multiple functions by adjusting its configuration. The antenna elements can be selectively connected or disconnected to adapt to different frequency bands and RAT requirements, allowing a single antenna system to replace multiple specialized antennas. This multi-functional design reduces device complexity while maintaining adaptability across various communication standards.
2Adaptability or versatility
If multiple separate antennas are used to cover different frequency bands and RATs, then frequency band coverage and RAT compatibility are improved, but device size, weight, power consumption, and manufacturing complexity increase
Solution Approach 1:
The patent merges multiple antenna functions into a single integrated structure, reducing the total weight of the antenna system. By combining multiple conductive elements into one unified antenna assembly rather than using separate physical antennas for each RAT, the overall device weight is reduced while maintaining compatibility with multiple radio access technologies.
3Adaptability or versatility
If antenna matching circuitry is added to provide impedance matching over multiple frequency bands, then frequency band coverage is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent employs parameter changes by adjusting the electrical configuration of the antenna elements through switching mechanisms. By changing the connectivity and configuration parameters of the conductive elements, the antenna can achieve impedance matching across multiple frequency bands without requiring additional active matching circuitry, thereby reducing power consumption while maintaining broad frequency band coverage.
Data Source
AI summary
Systems and methods are disclosed for providing an electronic device (700) that includes a back housing (702) at least partially formed from a plurality of discrete antenna elements (706) and an antenna switching module (701) for selectively coupling two or more of the antenna elements to an antenna feed (723). The coupled antenna elements form an antenna for transmitting and/or receiving wireless communication signals. The antenna switching module includes a plurality of switches (716) configured to selectively couple together two or more of the antenna elements; a plurality of electrical posts (729) coupled to the switches; a plurality of radio frequency chokes (735) respectively coupled to the electrical posts; and a biasing module (725) coupled to the radio frequency chokes for selectively applying a bias voltage to the switches.