Tunable RF Conductive Pattern Layout for Radiation Direction Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RF devices lack flexibility in circuit design and tunable RF parameters, and there is a need to adjust the radiation direction of electromagnetic waves effectively.
Innovation Solution
An electronic device incorporating a substrate with conductive patterns and tunable elements, such as variable capacitors, that allow for independent control of RF parameters by applying voltages to pads, enabling adjustment of electromagnetic wave direction and tunability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional RF devices are used, then the device structure is simple, but the flexibility of circuit design is limited and tunable RF parameters cannot be adjusted
Solution Approach 1:
The RF device is segmented into multiple independent conductive patterns (first conductive pattern, second conductive pattern, third conductive pattern) that can be independently controlled. Each conductive pattern can be adjusted separately to achieve different RF parameters and radiation directions, providing design flexibility without requiring a complete redesign of the entire device structure.
Solution Approach 2:
The conductive patterns are designed to be dynamically adjustable through voltage control. By applying different voltages to the conductive patterns, the RF parameters (such as resonance frequency and radiation direction) can be tuned in real-time, enabling dynamic adaptation while maintaining a relatively simple static structure.
2Adaptability or versatility
If fixed RF parameters are used, then the device structure is simple, but the radiation direction of electromagnetic waves cannot be adjusted
Solution Approach 1:
Different conductive patterns are assigned different local functions: the first conductive pattern is optimized for one radiation direction, the second for another direction, and the third for frequency tuning. By locally optimizing each pattern's geometry and position, the device achieves multi-directional radiation capability without requiring a complex reconfigurable structure.
Solution Approach 2:
The set of conductive patterns serves multiple functions simultaneously: they act as radiating elements, tuning elements, and direction-control elements. This multi-functionality allows the device to adjust radiation direction and RF parameters using the same structural components, avoiding the need for separate adjustment mechanisms.
3Adaptability or versatility
If conventional tunable elements are used, then the capacitance is fixed, but the device structure is simple
Solution Approach 1:
The patent replaces mechanical tuning mechanisms (such as movable capacitive plates or switchable capacitor banks) with a voltage-controlled field effect. By applying different voltages to the conductive patterns, the capacitance is tuned through electrical field modulation rather than mechanical movement, simplifying the tunable element structure while enabling continuous RF parameter adjustment.
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
Enhances flexibility in circuit design, increases tunable RF parameters, and allows for precise control over electromagnetic wave transmission direction.
Implementation Method 1
The tunable element is disposed on at least one conductive pattern in the plurality of conductive patterns and includes a first pad, a second pad, and a third pad. The first pad and the second pad are overlapped with the at least one conductive pattern in the plurality of conductive patterns. The third pad is disposed between the first pad and the second pad.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An electronic device (1) includes a substrate (10), a plurality of conductive patterns (11), and a tunable element (12). The plurality of conductive patterns (11) are disposed on the substrate (10). The tunable element (12) is disposed on at least one conductive pattern (11-1, 11-2) in the plurality of conductive patterns (11) and includes a first pad (PI), a second pad (P2), and a third pad (P3). The first pad (PI), the second pad (P2), and the third pad (P3) are separated from each other. The first pad (P1) and the second pad (P2) are overlapped with the at least one conductive pattern (11-1, 11-2) in the plurality of conductive patterns (11). The third pad (P3) is disposed between the first pad (P1) and the second pad (P2).