Concentric Antenna Elements for Millimeter Wave Transceivers
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Solution Overview
Problem
Designing compact, low-power millimeter wave band wireless transceivers for mobile communication devices is challenging due to decreased maximum device powers and increased losses at higher frequencies, which affects transmission efficiency and reception sensitivity.
Innovation Solution
The use of a wireless transceiver antenna configuration with multiple, substantially concentric antenna elements and a differential design that enables circularly polarized signal transmission and reception, improving power efficiency and signal immunity to multipath effects by combining in-phase and quadrature-phase signals in free space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter wave band frequencies (57 GHz to 66 GHz) are used to increase bandwidth utilization, then communication capacity is improved, but device power decreases and losses increase significantly
Solution Approach 1:
The antenna is divided into multiple concentric elements (first antenna element, second antenna element, etc.) with different radii. Each element can be independently controlled and optimized, allowing the system to segment the signal transmission across multiple paths, thereby improving overall power efficiency and communication capacity at millimeter wave frequencies
Solution Approach 2:
The patent combines multiple antenna elements into a single integrated antenna structure that operates at millimeter wave frequencies. By merging multiple elements with different radii into one unified antenna system, the invention achieves improved power efficiency (up to 6 dB increase) while maintaining the high bandwidth utilization benefits of millimeter wave operation
2Productivity
If millimeter wave band frequencies are used to increase bandwidth utilization, then communication capacity is improved, but transmission losses increase significantly
Solution Approach 1:
The antenna is divided into multiple concentric elements with different radii, creating multiple transmission paths. This segmentation allows the system to distribute energy across multiple elements, reducing losses by providing alternative signal paths and improving overall transmission efficiency at millimeter wave frequencies
Solution Approach 2:
The patent changes the physical parameters of the antenna elements, specifically using different radii for each concentric element. This parameter variation optimizes the radiation pattern and impedance matching, thereby reducing transmission losses while maintaining high communication capacity at 57 GHz to 66 GHz frequencies
3Volume of moving object
If compact antenna design is implemented for mobile devices, then device size is reduced, but power efficiency decreases at millimeter wave frequencies
Solution Approach 1:
The antenna employs a nested concentric element structure where multiple antenna elements are arranged one inside another in increasing order of radius. This nesting approach allows the antenna to maintain a compact overall size suitable for mobile devices while incorporating multiple functional elements that improve power efficiency through their collective operation
Solution Approach 2:
The patent transitions from a two-dimensional planar antenna layout to a three-dimensional concentric arrangement. By utilizing the radial dimension and arranging elements in concentric circles, the invention achieves both compactness and improved power efficiency, as the three-dimensional structure allows better energy distribution and radiation patterns within a limited volume
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 achieves up to a 6 dB increase in power and enhances signal-to-noise ratio, improving transmission power and reception sensitivity, particularly at frequencies above 50 GHz.
Implementation Method 1
The use of a wireless transceiver antenna configuration with multiple, substantially concentric antenna elements and a differential design that enables circularly polarized signal transmission and reception
Implementation Method 2
improving power efficiency and signal immunity to multipath effects by combining in-phase and quadrature-phase signals in free space
Data Source
AI summary
The present application discloses various implementations of an antenna configured for use in a wireless transmitter, receiver, or transceiver. In one exemplary implementation, a wireless transmitter includes the antenna configured to be connected to the wireless transmitter. The antenna includes first and second substantially concentric pluralities of antenna elements, the second plurality of antenna elements being rotated with respect to the first plurality of antenna elements. The antenna is configured to enable the wireless transmitter to transmit a communication signal.