Orientation-Agnostic Millimeter-Wave Antenna for Portable Devices
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Solution Overview
Problem
Current antenna designs for mobile devices are limited in coverage and incur high losses at millimeter-wave frequencies, requiring an unobstructed line-of-sight and specific orientation for maximum radio link, which restricts their usage in portable devices.
Innovation Solution
The implementation of an orientation-agnostic millimeter-wave antenna using a waveguide structure with an open-end acting as the antenna, connected to a RF module through a RF connector, optimized for impedance matching with plastic materials and positioned on the device's chassis for efficient mm-wave wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional antenna designs are used for millimeter-wave frequencies, then the antenna can be integrated into portable devices, but the coverage is limited and signal losses are high
Solution Approach 1:
The antenna system is divided into multiple planar inverted-F antenna elements arranged in a specific geometry. Each antenna element operates independently at millimeter-wave frequencies, allowing the system to achieve broader coverage while maintaining low signal losses through distributed transmission paths
Solution Approach 2:
The patent transitions from conventional three-dimensional antenna structures to a planar two-dimensional configuration. The planar inverted-F antenna elements are arranged in a geometric pattern on a substrate, enabling orientation-agnostic operation at millimeter-wave frequencies while reducing signal losses through optimized current distribution paths
2Reliability
If line-of-sight requirement is enforced for maximum radio link, then signal quality is improved, but the antenna orientation becomes restricted and coverage is limited
Solution Approach 1:
The planar inverted-F antenna system is designed to perform multiple functions simultaneously: it maintains reliable line-of-sight communication while also providing orientation-agnostic operation. The geometric arrangement of multiple antenna elements enables the system to adapt to different device orientations and positions without sacrificing radio link quality
Solution Approach 2:
Multiple planar inverted-F antenna elements are combined in a specific geometric configuration to create a unified antenna system. This merging of multiple elements provides both the reliability of line-of-sight communication and the versatility of orientation-agnostic operation, as the combined system can serve multiple directional requirements simultaneously
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
This solution enhances mm-wave wireless communication by providing orientation-agnostic coverage, reducing signal losses, and enabling reliable high-data-rate links over shorter distances, even with obstructions, by utilizing waveguides with optimal routing and impedance matching for efficient signal transmission.
Implementation Method 1
a waveguide; a radio frequency (RF) module configured to transmit or receive wireless signals through the waveguide
Implementation Method 2
a RF signal transition that couples the RF module to the waveguide, the RF signal transition is a RF connector
Implementation Method 3
an open-end of the waveguide structure acts as an antenna
Data Source
AI summary
Described herein are architectures, platforms and methods for implementing an orientation-agnostic millimeter-wave (mm-wave) antenna in a portable device.