Deflected PCB Antenna Reducing Head Exposure
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Solution Overview
Problem
Existing radio-based telephone antennas face challenges in assembly complexity, high manufacturing costs, and inadequate distance between the antenna and the user's head, leading to increased electromagnetic exposure and radiation losses.
Innovation Solution
A printed circuit board antenna design where the conductor track carrier is cut out around the antenna conductor track, allowing it to be deflected out of the plane, reducing user exposure and interference, and integrated into the existing production process without additional expensive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional external antenna component is used, then antenna performance is optimized, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the antenna function with the existing conductor track carrier structure by creating a cut-out area that allows the antenna conductor track to be deflected out of plane. This integration eliminates the need for separate external antenna components while maintaining antenna performance, directly resolving the contradiction between optimized antenna performance and device complexity
Solution Approach 2:
The patent utilizes the third dimension by deflecting the antenna conductor track out of the plane of the conductor track carrier. This dimensional change allows the antenna to achieve optimal radiation characteristics without requiring additional external components, thereby reducing device complexity while maintaining antenna performance
2Object-affected harmful factors
If an additional internal antenna component is used, then distance between antenna and user head is increased, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent merges the antenna structure with the existing conductor track carrier, using the same material and manufacturing process. This integration eliminates the need for additional internal antenna components and their associated assembly steps, directly reducing manufacturing cost while maintaining the increased distance benefit
Solution Approach 2:
The conductor track carrier's own structure is utilized to provide the distance function. By creating a cut-out area in the existing carrier, the antenna is automatically positioned at an optimized distance from the user head without requiring additional spacing components or complex assembly procedures
3Ease of manufacture
If conductor track antenna is arranged directly on conductor track carrier, then manufacturing is simplified, but distance between antenna and user head is reduced
Solution Approach 1:
The patent maintains the simple manufacturing process of direct conductor track formation on the carrier while introducing a dimensional change by deflecting the antenna track out of plane. This out-of-plane configuration increases the distance to the user head without adding manufacturing complexity, as the deflection is achieved through the cut-out area design rather than additional assembly steps
Solution Approach 2:
The patent segments the conductor track carrier by creating a cut-out area around the antenna conductor track. This segmentation allows the antenna portion to be deflected independently out of the plane, achieving increased distance while maintaining the integrated manufacturing approach for the overall structure
4Volume of moving object
If small distance between antenna and user head is maintained, then device compactness is achieved, but radiation losses increase and range is reduced
Solution Approach 1:
The patent resolves the contradiction by utilizing the third dimension - deflecting the antenna conductor track out of the plane of the carrier. This allows the antenna to achieve optimal radiation pattern and reduced energy losses while maintaining a compact device footprint, as the deflection uses vertical space rather than increasing horizontal device dimensions
Solution Approach 2:
The patent introduces dynamic positioning of the antenna conductor track by allowing it to be deflected to an optimized position out of plane. This dynamic configuration enables the antenna to achieve optimal radiation characteristics and minimize energy losses while maintaining device compactness, without being constrained to a fixed planar position
Data Source
Figure 1~2
Figure 3~4
AI summary
The aim of the invention is to technically improve an antenna device for radio telephones, based on a printed circuit board antenna or a strip conductor antenna, in such a way that it is economical and simple to produce and has a high efficiency, but nevertheless ensures that the user of the radio telephone is less exposed to the effects of electromagnetic radiation and the parasitic interference of the telephone caused by the user is reduced. To this end, the strip conductor carrier (1) is cut around (4) strip conductors (3) used as the antenna up to a section (6) used for the connection of the strip conductor (3) used as the antenna to the other strip conductors of the strip conductor carrier (1). Furthermore, at least when the strip conductor carrier (1) is mounted in the radio telephone, the cut-out region (5) of the strip conductor carrier (1), carrying the strip conductor (3) used as the antenna, is deflected out of the plane of the other regions of the strip conductor carrier (1) by technical means (7).