Interleaved Patch and Dipole Antenna Array for 5G Dual-Band Operation
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Solution Overview
Problem
The challenge is to design an antenna system for wireless devices that can accommodate shrinking form factors while supporting multiple millimeter-wave frequency bands, such as 28 GHz and 39 GHz, with efficient energy transmission and reception, and maintaining a compact size suitable for small form factor devices.
Innovation Solution
The solution involves an antenna module comprising a combination of patch antenna elements and dipole antennas, with high impedance surfaces interleaved between them, configured to operate at different frequencies and polarizations, and integrated with a radio frequency integrated circuit to adjust power and radiation beam patterns, enabling dual-band operations in 5G frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna elements are used to support multiple frequency bands, then frequency band coverage is improved, but device size increases
Solution Approach 1:
The patent combines patch antenna elements and dipole antennas into a single integrated array structure. The patch elements and dipole antennas are positioned adjacent to each other and share common high impedance surfaces and ground structures, allowing multiple frequency bands to be supported within a compact form factor.
Solution Approach 2:
The high impedance surfaces serve multiple functions: they are positioned beneath both patch elements and dipole antennas, providing electromagnetic isolation and impedance control for both antenna types across different frequency bands, thereby enabling a single structure to support dual-band operations.
2Volume of moving object
If antenna elements are placed closer together to reduce size, then device size is reduced, but energy transmission efficiency deteriorates
Solution Approach 1:
High impedance surfaces are positioned between adjacent patch elements and dipole antennas to act as electromagnetic isolators. These surfaces prevent unwanted coupling and interference between closely spaced antenna elements, maintaining energy transmission efficiency despite the reduced spacing required for compact device size.
3Adaptability or versatility
If different antenna types are used for different frequencies, then frequency band support is improved, but device complexity increases
Solution Approach 1:
The patent integrates patch antenna elements and dipole antennas into a unified array structure with shared high impedance surfaces and ground planes. This merged design allows support for multiple frequency bands (28 GHz and 39 GHz) while reducing overall device complexity compared to separate antenna systems.
Data Source
AI summary
Various wireless device and antenna array configurations are provided. An example wireless device includes at least one radio frequency integrated circuit, at least one patch antenna element operably coupled to the at least one radio frequency integrated circuit, at least one dipole antenna comprising two dipole antenna elements disposed adjacent to the at least one patch antenna element and operably coupled to the at least one radio frequency integrated circuit, and at least one high impedance surface disposed below the at least one dipole antenna and adjacent to the at least one patch antenna element.