Antenna Element With Dynamic Feed Ports For Polarization Control
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Solution Overview
Problem
Conventional mobile communication devices require multiple antenna elements and switching circuits to dynamically change polarization, leading to increased power consumption, heat dissipation, and footprint due to insertion losses and noise floor issues.
Innovation Solution
An antenna element with a radiating structure conductively coupled to pairs of feed ports that can be dynamically configured with differential signals to change polarization without additional circuitries, allowing the antenna to radiate in defined polarizations such as linear or circular polarization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna elements and switching circuits are used to dynamically change polarization, then the antenna can adapt to different receiving antenna polarizations, but the device complexity increases
Solution Approach 1:
A single antenna element is designed with multiple feed ports that can be dynamically configured to support multiple polarization modes (horizontal, vertical, circular). This multi-functional design allows one antenna element to replace what would traditionally require multiple separate antenna elements, thereby reducing device complexity while maintaining polarization adaptability
Solution Approach 2:
The antenna element incorporates dynamic reconfiguration capability through multiple feed ports that can be selectively activated. By dynamically switching which feed ports are active and how they are configured, the antenna can adapt its polarization characteristics in real-time to match different receiving antennas, achieving adaptability without requiring multiple fixed antenna elements
2Adaptability or versatility
If switching circuits are added to toggle between antenna elements for different polarizations, then polarization adaptability is achieved, but power consumption increases
Solution Approach 1:
The invention extracts and eliminates the switching circuit component from the traditional multi-antenna polarization switching architecture. By integrating multiple feed ports directly into a single antenna element, the patent removes the need for external switching circuits, thereby reducing power consumption while maintaining the ability to dynamically change polarization
Solution Approach 2:
The antenna element is designed to self-configure its polarization characteristics through its internal multi-feed port structure. Rather than requiring external switching circuits to toggle between antenna elements, the single antenna element can independently adapt its polarization by selectively activating different feed ports, reducing the power consumption associated with external switching and control circuitry
3Adaptability or versatility
If additional antenna elements are included for different polarizations, then polarization adaptability is improved, but the device footprint increases
Solution Approach 1:
The invention merges multiple antenna elements designed for different polarizations into a single integrated antenna element with multiple feed ports. This consolidation reduces the spatial footprint required for multiple separate antenna elements while maintaining the capability to support multiple polarization modes through dynamic feed port configuration
Solution Approach 2:
A single antenna element is designed to perform multiple polarization functions that would traditionally require separate antenna elements. By making one antenna element universal and capable of operating in horizontal, vertical, and circular polarization modes through dynamic feed port configuration, the device footprint is reduced while maintaining full polarization adaptability
4Adaptability or versatility
If switching circuits are used to dynamically toggle between antenna elements, then polarization adaptability is achieved, but insertion losses increase leading to reduced signal-to-noise ratio
Solution Approach 1:
The invention extracts and removes the switching circuit from the signal path that causes insertion losses. By using a single antenna element with dynamically configurable feed ports instead of switching between multiple antenna elements, the patent eliminates the insertion losses associated with switching circuits while maintaining polarization adaptability
Solution Approach 2:
The antenna element independently configures its own polarization characteristics through internal feed port selection without requiring external switching circuits. This self-service capability eliminates the insertion losses that would be introduced by external switching components, as the signal remains within the single antenna element structure throughout the polarization switching process
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 reduces power consumption, heat dissipation, and footprint by eliminating the need for switching circuits and additional antenna elements, while maintaining efficient signal transmission across various polarizations.
Implementation Method 1
a radiating structure configured to radiate a radio frequency (RF) signal in a defined polarization
Data Source
AI summary
An antenna element and related apparatus are provided. The antenna element includes a radiating structure configured to radiate a radio frequency (RF) signal in a defined polarization (e.g., linear polarization or circular polarization). The radiating structure is conductively coupled to a first pair of feed ports and a second pair of feed ports. In examples discussed herein, at least one selected pair of feed ports among the first pair of feed ports and the second pair of feed ports can be dynamically configured to receive a differential signal(s). By applying the differential signal(s) to the selected pair of feed ports with a proper polarity and/or a relative phase differential, it may be possible to cause the radiating structure to radiate in the defined polarization without requiring additional circuitries (e.g., switching circuit), thus helping to reduce power consumption, heat dissipation, and/or footprint in an apparatus employing the antenna element.