Dielectric Resonator and Patch Antenna Stacked for 5G Bandwidth
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Solution Overview
Problem
Existing antenna technologies face challenges in efficiently transmitting and receiving high-frequency RF signals, particularly in millimeter wave communication, due to signal absorption and loss, which affects communication quality.
Innovation Solution
The antenna device incorporates a dielectric resonator antenna and a patch antenna pattern with overlapping structures, featuring distinct dielectric constants and feed vias to enhance signal transmission and reception across different frequency bandwidths, including 28 GHz and 39 GHz, while utilizing a ground plane for improved radiation patterns and electromagnetic isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high frequency RF signals are transmitted, then communication bandwidth is improved, but signal loss and absorption increase
Solution Approach 1:
The patent employs a three-dimensional stacked configuration where a dielectric resonator antenna and a patch antenna are vertically arranged at different heights. This spatial dimensionality allows simultaneous operation at multiple frequency bands (e.g., 28 GHz and 39 GHz) without significant mutual interference, enabling wide bandwidth communication while maintaining signal integrity through optimized vertical separation and electromagnetic isolation.
Solution Approach 2:
The patent implements a nested structure where the patch antenna is positioned within the vertical projection area of the dielectric resonator antenna, or vice versa. This nesting approach allows compact integration of multiple antenna elements, achieving wide bandwidth coverage through multi-frequency operation while minimizing overall antenna footprint and reducing mutual coupling effects.
2Volume of moving object
If antenna size is reduced, then device integration is improved, but antenna gain decreases
Solution Approach 1:
The patent utilizes a dielectric resonator with high dielectric constant material, which allows the antenna to achieve resonant frequencies and maintain gain performance in a physically smaller volume. The high dielectric constant concentrates electromagnetic energy more effectively, enabling compact antenna design without sacrificing gain, particularly important for millimeter-wave frequencies where wavelength is short.
Solution Approach 2:
The patent combines a dielectric resonator antenna and a patch antenna into a single integrated structure that operates across multiple frequency bands. This merging of antenna types allows the system to achieve wide bandwidth and maintain gain performance in a compact form factor, as each antenna type complements the other's electromagnetic characteristics and radiation patterns.
3Adaptability or versatility
If multiple frequency bands are supported, then communication versatility is improved, but antenna structure complexity increases
Solution Approach 1:
The patent designs a universal antenna structure where a dielectric resonator and patch antenna combination can simultaneously support multiple frequency bands (e.g., 28 GHz and 39 GHz for 5G communication). The structure achieves multi-functionality through careful design of resonator dimensions, patch geometry, and vertical spacing, allowing a single antenna system to handle diverse communication requirements without needing separate antennas for each band.
Solution Approach 2:
The patent segments the antenna system into distinct functional components: a dielectric resonator for generating and confining electromagnetic energy, a patch antenna for radiation, and feed networks for signal injection. This segmentation allows each component to be independently optimized for its specific function while working together to achieve wide bandwidth operation, simplifying the overall design process compared to attempting to design a single monolithic multi-band antenna.
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 configuration allows for efficient down-sizing of the antenna while maintaining high gain and wide bandwidth, effectively addressing signal loss and absorption issues in high-frequency communications.
Implementation Method 1
a dielectric resonator antenna configured to transmit and/or receive a first RF signal
Implementation Method 2
A dielectric constant of the dielectric resonator antenna may be higher than a dielectric constant of a dielectric layer where the patch antenna pattern is implemented
Implementation Method 3
a patch antenna pattern configured to transmit and/or receive a second RF signal
Implementation Method 4
a first feed via configured to feed to the dielectric resonator antenna, and a second feed via configured to feed to the patch antenna pattern
Data Source
AI summary
An antenna device includes a dielectric resonator antenna configured to transmit and/or receive a first RF signal, a patch antenna pattern configured to transmit and/or receive a second RF signal, and at least partially overlaps the dielectric resonator antenna in a vertical direction, a first feed via configured to feed to the dielectric resonator antenna, and a second feed via configured to feed to the patch antenna pattern, wherein a frequency of the first RF signal is lower than a frequency of the second RF signal.