Overlapping Antenna Sub-Device for Wider Resonance Band
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Solution Overview
Problem
The antenna apparatus in communication terminals has a narrow frequency band, making it difficult to achieve a wider resonance frequency band without increasing the size of the terminal, as multiple antennas are required to achieve this.
Innovation Solution
The design includes a main device and a sub-device with a mounting member that overlaps, allowing the antenna apparatus to operate at a wider resonance frequency band, enabling a single antenna to cover a broader range without the need for multiple antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single antenna apparatus is used, then the device size is reduced, but the resonance frequency band becomes narrow
Solution Approach 1:
The patent transitions from a planar antenna layout to a three-dimensional stacked configuration. The first and second antenna apparatuses are positioned on different layers (first substrate and second substrate) with vertical spacing, enabling frequency differentiation through spatial separation in the vertical dimension while maintaining a compact footprint.
Solution Approach 2:
The patent implements a nested structure where the second antenna apparatus is positioned within the vertical projection area of the first antenna apparatus. The antenna elements are arranged in overlapping configurations with the second apparatus nested between the first apparatus and the ground plane, maximizing space utilization.
2Adaptability or versatility
If multiple antenna apparatuses are used to enlarge the resonance frequency band, then the frequency band is widened, but the installation space requirement increases
Solution Approach 1:
The patent resolves the space conflict by moving multiple antenna elements into the vertical dimension. Instead of placing antenna apparatuses side-by-side on the same plane, they are stacked on different substrates separated by a vertical distance, allowing frequency band enlargement without increasing the horizontal installation area.
Solution Approach 2:
The patent nests the second antenna apparatus within the spatial envelope of the first apparatus by positioning it in the vertical direction. The overlapping projection areas and vertical stacking create a compact configuration where multiple functional elements occupy the same horizontal footprint.
Data Source
AI summary
Disclosed is an antenna apparatus. The antenna apparatus includes a feeding pad for supplying a signal, a main device extended from the feeding pad, and a sub-device extended from the feeding pad and spaced apart from the main device while overlapping with the main device. The antenna apparatus includes the sub-device overlapped with the main device, so that the resonance frequency band of the antenna apparatus is enlarged.