Dual-Antenna Electronic Package With Frequency-Selective Directing Element
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Solution Overview
Problem
Wireless communication systems require multiple-band antennas to support higher data rates and increased functionality, but existing antennas face challenges in efficiently transmitting and receiving radio frequency signals across different frequency bands without significant size increases or performance compromises.
Innovation Solution
The electronic package incorporates a dual-antenna structure with a directing element that separates and directs electromagnetic waves of different frequencies, using high-Dk and low-Dk dielectric layers to optimize antenna performance and reduce interference, while adjusting the dimensions and materials of the directing element to enhance directivity and gain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple-band antennas are used to support higher data rates and increased functionality, then wireless communication capability is improved, but antenna structure complexity and interference between frequency bands increases
Solution Approach 1:
The antenna structure is segmented into multiple independent antenna elements (first antenna and second antenna) operating at different frequency bands. Each antenna is positioned and configured to operate independently in its specific frequency range, reducing mutual interference while maintaining multi-band functionality. The directing element is also segmented into first and second portions that independently direct waves for different antennas.
Solution Approach 2:
The patent introduces a vertical dimension by stacking antennas at different heights and using a directing element positioned above the antennas. This three-dimensional arrangement allows multiple frequency bands to coexist in a compact footprint by utilizing spatial separation in the vertical dimension, thereby reducing horizontal space requirements while maintaining band isolation.
2Reliability
If directing elements are added to improve directivity and gain, then antenna performance is improved, but device complexity and manufacturing difficulty increases
Solution Approach 1:
The directing element's performance is optimized by adjusting physical parameters such as the height of the element, the spacing between antennas and directing element, and the dimensions of the element itself. These parameter optimizations enable effective directivity control without requiring complex multi-element arrays, thereby simplifying manufacturing while achieving >5 dB gain improvement.
3Reliability
If high-Dk and low-Dk dielectric layers are used to optimize antenna performance, then signal transmission quality is improved, but manufacturing precision requirements increase
Solution Approach 1:
Different dielectric materials with appropriate Dk values are selectively applied in different locations: high-Dk dielectric layers are positioned near the antenna elements where field concentration is needed, while low-Dk dielectric layers are used in other regions for signal transmission. This localized material selection optimizes performance while allowing flexible manufacturing approaches.
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 enables efficient multi-band radiation with reduced package size and transmission losses, improving antenna directivity and gain by more than 5 dB compared to antennas without directing elements, while maintaining performance across different frequency bands.
Implementation Method 1
a first portion configured to direct a first electromagnetic wave having a first frequency to transmit via the first antenna and a second portion configured to direct a second electromagnetic wave having a second frequency different from the first frequency to transmit via the second antenna
Data Source
AI summary
The present disclosure provides an electronic package. The electronic package includes an antenna structure having a first antenna and a second antenna at least partially covered by the first antenna. The electronic package also includes a directing element covering the antenna structure. The directing element has a first portion configured to direct a first electromagnetic wave having a first frequency to transmit via the first antenna and a second portion configured to direct a second electromagnetic wave having a second frequency different from the first frequency to transmit via the second antenna. A method of manufacturing an electronic package is also provided.