Extendable Phased Array Antenna for 5G Mobile Device Case
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Solution Overview
Problem
Existing mobile devices lack the capability to operate at 5G frequencies and do not have antenna circuitry for beam steering, limiting their communication performance and compatibility with next-generation wireless systems.
Innovation Solution
A mobile device case with an integrated extendable phased array antenna system that includes millimeter wave circuitry and phase shifters, allowing for 5G communication by connecting to the device via a port and positioning the antenna array to minimize obstruction and radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If phased array antenna system is integrated into mobile device case, then 5G communication capability and beam steering are enabled, but device complexity and structural complexity increase
Solution Approach 1:
The phased array antenna system is nested within the protective case structure, utilizing the case as the housing for antenna elements, circuitry, and mechanical components. This integration allows the antenna system to be contained within an existing form factor while maintaining all necessary functional components for 5G communication and beam steering capabilities
Solution Approach 2:
The case serves multiple functions simultaneously: it provides mechanical protection for the mobile device, houses the phased array antenna system, contains beam steering circuitry, and enables both 5G communication and directional signal steering. This multi-functionality reduces the need for separate dedicated components and structures
2Reliability
If extendable antenna structure is used, then signal-to-noise ratio is improved through beam forming, but mechanical complexity and manufacturing difficulty increase
Solution Approach 1:
The antenna structure incorporates extendable and retractable elements that can dynamically adjust their position and configuration. This dynamic capability allows the antenna to optimize its geometry for different operational scenarios, improving beam forming performance and signal-to-noise ratio while maintaining a compact form when retracted
Solution Approach 2:
The antenna system is divided into multiple independent elements arranged in arrays, with each element capable of individual control through phase shifters. This segmentation allows for flexible configuration and beam steering while enabling modular manufacturing approaches where antenna elements can be produced separately and assembled into the case
3Object-affected harmful factors
If antenna array is positioned away from user's body, then health risks from electromagnetic radiation are reduced, but antenna efficiency and signal strength may deteriorate
Solution Approach 1:
The phased array antenna system utilizes spatial distribution of multiple antenna elements across different dimensions within the case structure. By controlling the phase and amplitude of signals across this three-dimensional array, the system can form directional beams that project signals away from the user's body while maintaining communication effectiveness through constructive interference in the desired direction
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
Enables 5G communication capabilities in non-capable devices, improves signal-to-noise ratio, and reduces health risks from electromagnetic radiation by positioning the antenna array away from the user's body.
Implementation Method 1
The relative amplitudes of, and constructive and destructive interference effects among, the signals radiated by the individual antennas determine the effective radiation pattern of the array
Implementation Method 2
By controlling the radiation pattern through the constructive and destructive superposition of signals from the different antennas in the array, phased array antennas electronically steer the directionality of the antenna system, referred to as beam forming or beam steering. In such systems, the direction of the radiation (i.e., the beam) can be changed by manipulating the phase of the signal fed into each individual antenna of the array
Data Source
AI summary
A case for an electronic device includes: a body configured to receive the electronic device; a connector configured to connect to a port of the electronic device; and an extendable phased array antenna structure integrated with the body and moveable relative to the body between a retracted position and an extended position. The extendable phased array antenna structure comprises an array of antenna elements that are configured to form a beam in a determined direction, the antenna elements being operatively connected to the connector by circuitry in the case.