Dielectric Waveguide Air Gap for Signal Transmission Loss Reduction
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Solution Overview
Problem
Existing signal transmission systems using dielectric waveguides experience significant energy losses due to the lack of an air gap between the waveguide end surface and the antenna, leading to increased insertion losses.
Innovation Solution
Incorporating an air gap between the waveguide end surface and the antenna, supported by at least one support part on the circuit board, to optimize the relative position and reduce insertion losses, with the air gap ranging from 0.025 mm to 0.5 mm for effective loss reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the dielectric waveguide is placed close to the antenna for compact design, then device size is reduced, but insertion losses increase due to energy losses
Solution Approach 1:
The patent introduces an air gap as an intermediary space between the dielectric waveguide and the antenna. This air gap acts as a mediator that reduces electromagnetic coupling losses while maintaining a compact overall device structure. The air gap is formed by positioning the dielectric waveguide at a specific distance from the antenna surface, creating an optimized transmission path that minimizes energy losses without requiring large device dimensions.
2Ease of manufacture
If the relative position between antenna and dielectric waveguide is not optimized, then manufacturing is simpler, but signal transmission efficiency deteriorates
Solution Approach 1:
The patent optimizes the air gap distance parameter between the dielectric waveguide and the antenna to achieve optimal signal transmission efficiency. By carefully controlling this dimensional parameter within a specific range, the design achieves low insertion losses while maintaining manufacturing feasibility. The optimized air gap distance becomes a critical design parameter that balances transmission performance with manufacturing considerations.
3Ease of operation
If the dielectric waveguide is directly contacted with the antenna, then assembly is easier, but energy losses increase
Solution Approach 1:
The air gap serves as an intermediary that prevents direct contact between the dielectric waveguide and the antenna, thereby reducing energy losses through improved electromagnetic coupling. While this introduces an additional positioning requirement, the overall assembly process remains relatively simple as it primarily involves maintaining a specific distance rather than requiring complex alignment procedures.
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 air gap significantly reduces insertion losses, enhancing the stability and positioning accuracy of the dielectric waveguide, thereby improving the efficiency of signal transmission.
Implementation Method 1
The dielectric waveguide is electromagnetically coupled to a semiconductor chip via an antenna that is a transmission path coupling part
Data Source
AI summary
A signal transmission system 1a is mounted on circuit boards 10A and 10B and on circuit boards 10A and 10B and includes semiconductor packages 12A and 12B containing an RF circuit as well as a dielectric waveguide 21E. The semiconductor packages 12A and 12B include the package surface 12f and the antenna 12e formed on the package surface 12f. The dielectric waveguide 21E includes a waveguide end surface 21a facing antenna 12e. An air gap G is ensured between the waveguide end surface 21a and the antenna 12e.