Conformal Dielectric Antenna for Wireless Transceivers
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Solution Overview
Problem
Integrated antennas for wireless communications face performance issues such as reduced radiation efficiency, gain, and bandwidth due to their design and integration with electronic equipment, while external antennas are bulky and aesthetically mismatched with equipment casings.
Innovation Solution
A conformal antenna device with a low aspect ratio, utilizing a composite material with a dielectric constant in the range of 5-100, resonating in TM0,n,δ class modes to achieve a substantially omnidirectional radiation pattern with a null along the z-axis direction, allowing better integration and performance comparable to external antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If integrated antennas are used, then antenna integration and compact packaging are improved, but radiation efficiency, gain, and bandwidth deteriorate
Solution Approach 1:
The patent changes the dielectric constant parameter of the resonator material from conventional values to the specific range of 5-100, and adjusts the aspect ratio parameter to achieve optimal radiation characteristics. This parameter optimization allows the integrated antenna to maintain compact form factor while improving radiation efficiency and bandwidth performance
Solution Approach 2:
The patent employs composite dielectric materials with specifically engineered dielectric constants in the range of 5-100, combining different material properties to achieve both compact integration and enhanced radiation performance. The composite material approach enables simultaneous optimization of size, efficiency, and bandwidth
2Reliability
If external antennas are used, then radiation efficiency and gain are improved, but device compactness and aesthetic integration deteriorate
Solution Approach 1:
The patent merges the antenna structure with the electronic equipment casing by integrating the resonator element directly into the casing body. The antenna device is designed to be conformal with the casing, eliminating the need for separate external antenna components while maintaining radiation efficiency through optimized dielectric properties
3Volume of moving object
If high dielectric constant materials are used, then antenna dimensions are reduced, but bandwidth deteriorates
Solution Approach 1:
The patent identifies and applies the optimal dielectric constant range of 5-100, avoiding both low dielectric constants that require large dimensions and excessively high values that reduce bandwidth. The aspect ratio parameter is also optimized to maintain compact size while preserving bandwidth characteristics
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
The conformal antenna device provides improved packaging and performance, with a radiation pattern having limited ripple and a significant null in the z-axis direction, enhancing both integration and functionality within electronic equipment casings.
Implementation Method 1
resonating in TM0,n,δ class of resonant modes
Implementation Method 2
provide a substantially omnidirectional radiation pattern
Implementation Method 3
composite material with a dielectric constant in the range of 5-100
Data Source
AI summary
A wireless transceiver station including an antenna device and a casing, the antenna device including at least one resonator element cooperating with the casing of the wireless transceiver station and having a shape with a low aspect ratio so as to be conformal with the casing, the at least one resonator element including a composite material and being adapted to be excited by a feed system which is positioned inside the resonator element so as to allow the antenna device to irradiate with a substantially omnidirectional radiation pattern.