Interior Vehicle Antenna Partition Wall for Upward Beam Steering
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Solution Overview
Problem
Antenna devices mounted inside vehicles experience degraded performance due to interference from the vehicle body, leading to reduced signal reception rates.
Innovation Solution
An antenna device with a partition wall configured to surround at least a portion of the antenna, inclining the beam radiation from a perpendicular direction to an upward direction using a partition wall that is higher than the antenna, maintaining circular polarization characteristics while enhancing signal reception sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the antenna device is mounted inside the vehicle, then the design appearance is improved, but the signal reception rate deteriorates due to vehicle body interference
Solution Approach 1:
The antenna device is divided into multiple functional components: radiation patches for signal transmission, partition walls for interference isolation, and reflective surfaces for signal redirection. This segmentation allows each component to address specific aspects of the contradiction - the integrated structure maintains aesthetic appearance while internal partitions mitigate vehicle body interference
Solution Approach 2:
Partition walls are introduced as intermediary structures between the antenna and the vehicle body. These walls act as mediators that block and redirect electromagnetic interference from the vehicle body, protecting the antenna signal while allowing the device to remain mounted inside the vehicle for aesthetic purposes
2Reliability
If a partition wall is added to incline the beam, then the signal reception sensitivity is improved, but the device complexity increases
Solution Approach 1:
The partition wall serves multiple functions simultaneously: it acts as a shield against vehicle body interference, a beam-inclining structure for signal direction control, and a structural support element. By merging these functions into a single component, the design achieves improved signal reception sensitivity without proportionally increasing device complexity
Solution Approach 2:
The partition wall is designed as a multi-functional element that performs interference shielding, beam direction control, and structural support. This universality allows the antenna device to achieve multiple performance improvements while minimizing the addition of separate components, thereby limiting the increase in device complexity
3Reliability
If the partition wall is made higher than the antenna, then the beam inclination effect is enhanced, but the device thickness increases
Solution Approach 1:
The partition wall extends in the vertical dimension (higher than the antenna) to achieve beam inclination, while the overall device thickness is controlled by optimizing other dimensional parameters. This dimensional strategy allows the beam inclination effect to be enhanced without necessarily increasing the device thickness in the mounting direction
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
The solution increases signal reception sensitivity of satellite signals by tilting the beam radiation, maintaining circular polarization, and preventing the antenna device from increasing in thickness, thus maintaining a small size and enhancing performance.
Implementation Method 1
the partition wall is configured so that a beam radiated from the radiation patch in the first radiation direction is inclined from the first radiation direction toward a second radiation direction
Data Source
AI summary
An antenna device and a vehicle including the same, includes at least one antenna disposed on a transparent inclined surface in an interior of a vehicle, and including a radiation patch facing a first radiation direction being perpendicular to the inclined surface, and a partition wall surrounding at a portion of the at least one antenna. The partition wall is configured so that a beam radiated from the radiation patch in the first radiation direction is inclined from the first radiation direction toward a second radiation direction.