Switched Beam Smart Antenna for Thin Wireless Devices
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Solution Overview
Problem
Existing wireless communication devices face challenges in achieving adjustable antenna radiation fields to enhance signal transmission range and quality while maintaining a thin profile, as fixed antennas are insufficient for high-end products and adjustable antennas increase volume significantly.
Innovation Solution
A switched beam smart antenna apparatus with multiple beam adjusting elements, radiation strips, and control modules that selectively activate specific radiation strips and beam adjusting elements to change the radiation field and transmission direction, allowing for flexible signal coverage and range extension without increasing device thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is designed to have an adjustable radiation field, then the signal transmission range and quality are improved, but the volume of the antenna is greatly increased
Solution Approach 1:
The antenna is divided into multiple independent radiation strips (first radiation strip, second radiation strip, third radiation strip, fourth radiation strip) that can be selectively activated. Each radiation strip can be controlled independently to radiate in different directions, allowing the antenna to achieve adjustable radiation patterns without requiring a large physical structure. This segmentation enables the antenna to provide multiple beam directions using a compact form factor.
Solution Approach 2:
The antenna system incorporates switching control that dynamically selects which radiation strips are active based on communication requirements. The first and second radiation strips can be switched to provide first and second directions respectively, while the third and fourth radiation strips can be switched to provide third and fourth directions. This dynamic switching capability allows the antenna to adapt its radiation pattern in real-time without physical movement or structural changes.
2Length of moving object
If fixed radiation field antennas are used, then the device maintains a thin profile, but the signal coverage and transmission range are limited
Solution Approach 1:
The antenna system is designed with multi-functionality by incorporating multiple radiation strips that can serve different purposes. The same compact antenna structure can radiate in multiple directions (first direction, second direction, third direction, fourth direction) by selectively activating different radiation strips. This universal design allows a single thin antenna to replace what would traditionally require multiple fixed antennas, providing both space-saving benefits and enhanced signal coverage.
Data Source
AI summary
A switched beam smart antenna apparatus is disclosed including: a first, a second, a third, a fourth, a fifth, a sixth, a seventh, and an eighth beam adjusting elements; a first, a second, a third, and a fourth beam control modules; a first, a second, a third, and a fourth radiation strips positioned within an area surrounded by the first to eighth beam adjusting elements; and a radiation strip control module for selecting either the first and second radiation strips or the third and fourth radiation strips to transmit signals. When the first beam control module conducts the first and second beam adjusting elements, the third beam control module does not conduct the fifth and sixth beam adjusting elements. When the second beam control module conducts the third and fourth beam adjusting elements, the fourth beam control module does not conduct the seventh and eighth beam adjusting elements.