Power Division Network With Internal Signal Adjustment
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Solution Overview
Problem
Current satellite communication systems face challenges in increasing bandwidth capacity due to limitations in hybrid matrix networks, particularly with hybrid couplers that operate poorly at wide bandwidths, leading to variable and unconstrained phase splits, which require special treatment and are frequency-dependent.
Innovation Solution
A power division and recombination network with internal signal adjustment (PDRN) is introduced, utilizing an 8x8 hybrid matrix waveguide network with enhanced hybrid-tee couplers and impedance matching elements to divide and combine power signals efficiently across multiple ports, allowing for improved phase matching and operation over a wider frequency range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hybrid couplers are used in hybrid matrix networks, then the network can be implemented, but the bandwidth capacity is limited due to variable and unconstrained phase splits that require special treatment and are frequency-dependent
Solution Approach 1:
The patent changes the fundamental parameters of the hybrid coupler by introducing a specific geometric configuration with four waveguides of equal cross-sectional dimensions meeting at common junctions. The waveguides are positioned with equal spacing and identical dimensions, creating symmetric E-plane and H-plane junctions. This geometric parameter change ensures that phase splits remain constant and unconstrained across all ports, eliminating the frequency-dependent phase variations that limited conventional designs. The result is a hybrid coupler that maintains reliable phase relationships over wide bandwidths, directly resolving the contradiction between bandwidth capacity and phase split stability.
2Power
If conventional hybrid couplers with different cross-sectional dimensions are used, then power division can be achieved, but the phase splits become variable and frequency-dependent
Solution Approach 1:
The patent applies local quality by making each waveguide within the hybrid coupler have identical cross-sectional dimensions and positioning them with equal spacing. This uniform local configuration at each waveguide interface ensures that the electromagnetic field distribution and phase relationships remain consistent across all ports. The symmetric local geometry at the common junctions creates predictable and stable phase splits, eliminating the variable and frequency-dependent phase behavior that occurs when waveguides have different dimensions. This local uniformity directly resolves the contradiction between power division capability and phase split consistency.
Data Source
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AI summary
A power division and recombination network with internal signal adjustment ("PDRN") is described. The PDRN may include a means for dividing an input power signal having a first amplitude value into eight intermediate power signals, where each intermediate power signal has an intermediate amplitude value equal to approximately one-eighth the first amplitude value. The PDRN may also include a means for processing the intermediate power signals and a means for combining the intermediate power signal into a single output power signal.