MIM Antenna Structure for High-Frequency AC-to-DC Conversion
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Solution Overview
Problem
Existing antenna technologies struggle to efficiently convert high-frequency AC signals into DC signals, as conventional diodes fail to meet the high frequency requirements, and additional rectifier diodes are often needed.
Innovation Solution
A metal-insulator-metal (MIM) structure is employed, comprising a first substrate, a second substrate, a first antenna layer, an insulating layer, and a conductive layer, with each antenna unit having a radiation patch and a conductive electrode forming a rectifier diode structure, allowing for direct conversion of high-frequency AC signals to DC signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional diodes are used for signal detection, then the device structure is simple, but they fail to meet high frequency requirements and cannot efficiently convert high-frequency AC signals to DC signals
Solution Approach 1:
The patent combines the antenna and rectifier diode functions into a single integrated structure. The antenna elements are directly formed with rectifier diode characteristics through the metal-insulator-metal (MIM) capacitor structure, eliminating the need for separate rectifier diodes while maintaining high frequency conversion efficiency
Solution Approach 2:
The antenna elements serve dual functions: they act as signal receiving antennas and simultaneously function as rectifier diodes for AC-to-DC conversion. This multi-functional design allows the same structure to perform both signal reception and rectification without requiring additional components
2Ease of operation
If additional rectifier diodes are added to convert high-frequency AC signals to DC signals, then the conversion function is achieved, but the device complexity increases
Solution Approach 1:
The antenna and rectifier diode are merged into a single integrated component. The MIM capacitor structure is incorporated directly into the antenna elements, allowing the same structure to perform both signal reception and rectification functions without requiring separate rectifier diodes
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 MIM structure effectively converts high-frequency AC signals to DC signals without the need for additional rectifier diodes, enabling efficient detection and analysis of electromagnetic waves across multiple frequency ranges.
Implementation Method 1
The first antenna layer is configured to receive signals in different frequency ranges
Implementation Method 2
The first antenna layer, the insulating layer and the conductive layer are all between the first substrate and the second substrate. The radiation patch, at least one of the plurality of conductive electrodes, and at least one of the plurality of sub-insulating layers constitutes a rectifier diode structure
Data Source
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AI summary
The present disclosure relates to an antenna apparatus. The antenna apparatus may include a first substrate; a second substrate opposite the first substrate; a first antenna layer; an insulating layer; and a conductive layer. The first antenna layer may comprise a plurality of antenna units, each of the plurality of antenna units may comprise a radiation patch and is configured to receive the signals in one of the different frequency ranges. The insulating layer may comprise a plurality of sub-insulating layers; the conductive layer may comprise a plurality of conductive electrodes; and the plurality of the sub-insulating layers, the plurality of the conductive electrodes, and the plurality of the antenna units may be in one-to-one correspondence. The radiation patch, at least one of the plurality of conductive electrodes, and at least one of the plurality of sub-insulating layers may constitute a rectifier diode structure.