RF Resonator Lid-Guided Tuning Without Separate Elements

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional RF resonators require separate tuning elements for adjusting resonant frequencies, which can be cumbersome and inefficient.

Innovation Solution

The design incorporates a guiding device with threads or serrated surfaces to allow precise axial and rotational movement of the lid within the resonator cavity, enabling efficient tuning of the resonant frequency without external tuning elements, and can be extended to stacked configurations of multiple resonators for compact and mechanically stable setups.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate tuning elements are used in conventional RF resonators, then the resonant frequency can be adjusted, but the device complexity and ease of operation deteriorate due to cumbersome tuning procedures

Engineering Contradiction:

Improvetunability of resonant frequencyVSAvoidnumber of separate tuning elements

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lid is merged with the tuning function by equipping it with a threaded portion that engages with the resonator body. Rotating the lid directly adjusts the cavity volume and resonant frequency, eliminating the need for separate tuning elements. This integration reduces device complexity while maintaining full tunability of the resonant frequency.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If separate tuning elements are used in conventional RF resonators, then the resonant frequency can be adjusted, but the ease of operation worsens due to cumbersome tuning procedures

Engineering Contradiction:

Improvetunability of resonant frequencyVSAvoidconvenience of tuning

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The tuning function is merged with the lid, which is a naturally accessible component. The threaded engagement allows direct manual rotation to adjust resonant frequency, making the tuning operation as convenient as simply rotating a cap. This eliminates cumbersome separate tuning mechanisms and improves ease of operation.

Inventive Principle:

Principle #5Merging (Combining)

3Volume of moving object

If multiple resonators are arranged in stacked configurations, then the compactness and mechanical stability improve, but the device complexity increases

Engineering Contradiction:

Improveoverall size of resonator assemblyVSAvoidstructural complexity of stacked arrangement

Core Design Contradiction:

Volume of moving objectVSDevice complexity

Solution Approach 1:

Multiple resonators are arranged in a stacked configuration where each resonator is positioned vertically above or below another, sharing common support structures and mounting interfaces. This nesting-like arrangement achieves compact vertical stacking that reduces overall footprint while maintaining individual resonator functionality and simplifying the structural complexity through standardized interfaces.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentEP3660977B1Resonator for radio frequency signals

Publication Date: 2023.12.13 NOKIA SOLUTIONS & NETWORKS OY

Figure 1~2C
Figure 3~4
Figure 5A~7

AI summary

A resonator for radio frequency, RF, signals, said resonator comprising a cavity having a longitudinal axis, a first wall, at least one side wall, and a lid arranged opposite the first wall, wherein said resonator further comprises a guiding device which is arranged at said at least one side wall and is configured to guide an axial movement of said lid along said longitudinal axis.