Frequency Band Splitter Using Narrow Rectangular Waveguides
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Solution Overview
Problem
High-speed signaling systems face challenges in efficiently splitting multiple carrier frequency signals without significant amplitude loss, leading to increased noise and resource utilization due to the use of power dividers and amplifiers.
Innovation Solution
A frequency band splitter design utilizing narrow rectangular waveguides with different widths to connect larger waveguides, allowing specific frequency bands to be transmitted with minimal amplitude loss by exploiting the super tunneling effect and Fabry Perot resonance, enabling efficient signal separation without the need for additional amplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power dividers and band pass filters are used to separate signals at the receiving end, then multiple carrier frequency signals can be separated, but signal amplitude decreases and noise increases
Solution Approach 1:
The invention segments the frequency band into multiple sub-bands using narrow rectangular waveguides with different width-to-height ratios. Each waveguide is designed to support specific TE modes at different frequency bands, enabling frequency-based signal separation without power division. This resolves the contradiction by maintaining full signal amplitude in each frequency band while achieving separation capability.
Solution Approach 2:
The invention replaces the traditional electrical filtering system (power dividers and band pass filters) with a waveguide-based electromagnetic mode filtering system. By using the inherent electromagnetic properties of narrow rectangular waveguides and their mode propagation characteristics, the system achieves frequency separation without the amplitude loss associated with electrical power division and filtering.
2Loss of energy
If amplifiers are employed to alleviate lower signal amplitude, then signal amplitude increases, but costs and resource utilization increase
Solution Approach 1:
The narrow rectangular waveguides are designed to inherently maintain signal amplitude through their electromagnetic mode propagation characteristics. The waveguides naturally support full-amplitude signal transmission in their respective frequency bands without requiring external amplification. This self-service approach eliminates the need for amplifiers, reducing both cost and resource utilization while maintaining signal amplitude.
3Device complexity
If a single guiding structure is used to transfer multiple carrier frequency signals, then wiring complexity decreases, but signal separation becomes more difficult
Solution Approach 1:
The invention applies local quality by designing each narrow rectangular waveguide with specific dimensional characteristics (different width-to-height ratios) tailored to support particular frequency bands. This localized optimization of waveguide geometry enables frequency-specific signal transmission and separation within the unified waveguide structure, resolving the contradiction between simplified wiring and effective signal separation.
Solution Approach 2:
The invention changes the physical parameters of the waveguides (width, height, and width-to-height ratio) to create frequency-selective transmission paths. By varying these geometric parameters, the system enables multiple carrier frequency signals to be transmitted through a single guiding structure while maintaining the capability to separate them based on their frequency characteristics.
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 solution achieves high-amplitude signal transmission in specific frequency bands with reduced noise and resource utilization, improving the efficiency of frequency band splitting in high-speed signaling systems.
Implementation Method 1
allowing specific frequency bands to be transmitted with minimal amplitude loss by exploiting the super tunneling effect
Implementation Method 2
exploiting the super tunneling effect and Fabry Perot resonance, enabling efficient signal separation
Data Source
AI summary
A frequency band splitter is disclosed. The frequency band splitter includes a first, a second, and a third waveguides. A first narrow rectangular waveguide is utilized to connect the first waveguide to second waveguide. The first narrow rectangular waveguide has a first width to allow signals of a frequency band centered around a first frequency to be transmitted from the first waveguide to the second waveguide. A second narrow rectangular waveguide is utilized to connect the first waveguide to the third waveguide. The second narrow rectangular waveguide has a second width, which is different from the first width, to allow signals of a frequency band centered around a second frequency to be transmitted from the first waveguide to the third waveguide.