Antenna Apparatus With Intermediate Ground Element
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Solution Overview
Problem
Current antenna apparatuses in communication terminals have a narrow resonance frequency band, making it difficult to miniaturize the terminals while providing wide frequency coverage, as multiple antennas are required to expand the frequency band.
Innovation Solution
The design includes a lower antenna element, an upper antenna element, and an intermediate ground element, with a feeding element connecting them, allowing for a single antenna apparatus to operate over a wider resonance frequency band without increasing size, and suppressing electromagnetic coupling to maintain performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna apparatuses are used to expand the resonance frequency band, then the resonance frequency band is expanded, but the device size increases
Solution Approach 1:
The patent combines multiple antenna elements (first and second antenna elements) into a single integrated antenna apparatus. The antenna elements are positioned at different heights and connected through a feeding element, allowing them to operate together as one unified structure that provides expanded frequency coverage without requiring separate antenna devices.
Solution Approach 2:
The patent utilizes the vertical dimension by positioning antenna elements at different heights (first antenna element at higher position, second antenna element at lower position). This three-dimensional arrangement allows multiple resonant modes to be achieved within a compact horizontal footprint, expanding the frequency band without increasing the device's planar area.
2Adaptability or versatility
If multiple antenna apparatuses are installed to provide wide frequency coverage, then the frequency coverage is expanded, but the communication terminal cannot be miniaturized
Solution Approach 1:
The patent merges multiple antenna functions into a single antenna apparatus by integrating first and second antenna elements with different resonant frequencies. This unified structure provides wide frequency coverage while reducing the number of separate antenna components needed in the communication terminal.
Solution Approach 2:
The single antenna apparatus is designed to perform multiple functions by supporting both first and second antenna elements that operate at different resonant frequencies. This multi-functional design allows the antenna to cover a broad frequency range while maintaining a compact structure suitable for miniaturized terminals.
3Reliability
If a single antenna apparatus is designed to operate at a specific resonance frequency, then the antenna operates efficiently at that frequency, but the resonance frequency band remains narrow
Solution Approach 1:
The antenna apparatus is segmented into multiple antenna elements (first and second antenna elements), each designed to resonate at different frequencies. The first antenna element operates at a first resonant frequency while the second antenna element operates at a second resonant frequency, allowing the combined structure to provide broad frequency coverage while maintaining efficient operation at each frequency band.
Solution Approach 2:
The antenna apparatus dynamically adapts its resonant characteristics by utilizing multiple antenna elements with different resonant frequencies. The feeding element selectively excites different antenna elements based on the operating frequency, enabling the antenna to maintain high efficiency across a wide frequency range rather than being limited to a single fixed resonant frequency.
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
This configuration enables a communication terminal to utilize a broader resonance frequency band with a single antenna, preventing performance degradation and allowing for miniaturization by eliminating the need for multiple antennas.
Implementation Method 1
the intermediate ground element suppresses electromagnetic coupling between the lower antenna element and the upper antenna element in the antenna apparatus
Implementation Method 2
a feeding element connecting the upper antenna element to the lower antenna element, and transferring a signal supplied to the lower antenna element to the upper antenna element
Data Source
AI summary
Disclosed is an antenna apparatus. The antenna apparatus includes a lower antenna element; an upper antenna element on the lower antenna element; and an intermediate ground element interposed between the lower antenna element and the upper antenna element and overlapping with the lower antenna element and the upper antenna element. The antenna apparatus may have an expanded resonance frequency band.