Dual-Polarization Antenna Feed Switching for Beam Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Next-generation communication technologies using high-frequency bands face challenges in efficiently arranging antenna structures to overcome high free space loss and improve antenna gain, with existing antenna modules exhibiting degraded performance in specific wireless environments.
Innovation Solution
An electronic device with an antenna module featuring a printed circuit board and multiple antenna elements, each with feeders arranged on distinct virtual lines, and a switch to adaptively connect these feeders to a wireless communication circuit, allowing selection of different feeder structures for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed feeder structure (first or second structure) is used in antenna elements, then the antenna module can be manufactured with simple structure, but the wireless performance is degraded in specific wireless environments
Solution Approach 1:
The patent applies the dynamics principle by making the feeder structure adjustable rather than fixed. The antenna element includes multiple feeders (first, second, and third feeders) that can be selectively connected to the radiating element through switching circuits. This allows the feeder configuration to be dynamically changed based on wireless environment conditions, resolving the contradiction between manufacturing simplicity and wireless performance reliability.
2Reliability
If the first feeder structure is used with feeders on virtual lines parallel to board sides, then single antenna system performance is improved, but dual polarized EIRP characteristic becomes biased
Solution Approach 1:
The patent enables dynamic switching between different feeder configurations. The switching circuit can select between the first feeder structure (which provides better single antenna system performance) and the second feeder structure (which provides more uniform dual polarization characteristics). This dynamic adaptability allows the system to optimize for either single-antenna or dual-polarization operations as needed.
Solution Approach 2:
The antenna element is designed with multi-functionality by incorporating multiple feeders that can serve different purposes. The same antenna element can operate in single-antenna mode using the first feeder structure or in dual-polarization mode using the second feeder structure, making it universally applicable to different operational requirements without sacrificing performance in either mode.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
Various embodiments of the present invention relate to an electronic device including a dual polarization antenna. The electronic device comprises: a housing; a wireless communication circuit arranged in an internal space of the housing; and, as an antenna module arranged in the internal space, an array antenna including a printed circuit board arranged in the internal space and a plurality of antenna elements arranged on the printed circuit board, wherein each of the plurality of antenna elements may comprise: an antenna module including a first feeder which is arranged at a first point on a first virtual line passing through the center of the antenna element, and is electrically connected to the wireless communication circuit through a first electric path, a second feeder which is arranged at a second point on a second virtual line passing through the center of the antenna element and perpendicularly crossing the first virtual line, and is electrically connected to the wireless communication circuit through a second electric path, and a third feeder which is arranged at a third point on a third virtual line passing through the center of the antenna element and not matching the first virtual line or the second virtual line, and is electrically connected to the wireless communication circuit through a third electric path; and a switch arranged on the first electric path, the second electric path, and the third electric path, and electrically connecting the first feeder and the second feeder to the wireless communication circuit or electrically connecting the third feeder to the wireless communication circuit. Other embodiments may also be possible.