Integrated Waveguide Signal Chain for Compact Antenna Assemblies
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Solution Overview
Problem
Traditional satellite communication systems utilize discrete, commercial off-the-shelf components for signal chains, resulting in a large number of parts that are expensive, complicated to assemble, install, and service, and have a large overall size.
Innovation Solution
An integrated signal chain comprising a waveguide network with a first and second waveguide layer forming a stack, combined with a transmit and receive module attached to the exterior side of the waveguide layer, and a modem in a co-planar arrangement, along with a thermal management assembly for airflow to dissipate heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If discrete, commercial off-the-shelf components are used for the signal chain, then the system can be assembled using standard parts, but the part count increases, making the system expensive, complicated to assemble, install, and service, and large in overall size
Solution Approach 1:
The patent combines multiple discrete components (transmit module, receive module, waveguide network, and heat sink) into a single integrated antenna assembly. The transmit and receive modules are mounted directly to the waveguide network, which is thermally coupled to a common heat sink, eliminating the need for separate mounting brackets, fasteners, and thermal management components that would be required with discrete assembly.
Solution Approach 2:
The waveguide network serves multiple functions simultaneously: it acts as the signal transmission path, provides structural support for mounting the transmit and receive modules, and serves as a thermal conduction path to the heat sink. This multi-functionality reduces the number of separate components needed in the system.
2Adaptability or versatility
If discrete components are used for the signal chain, then each component can be independently sourced, but the overall size and footprint of the antenna assembly increases
Solution Approach 1:
The transmit and receive modules are nested directly onto the waveguide network structure, which itself is integrated with the heat sink. This nesting arrangement allows components to occupy the same spatial envelope, minimizing the overall footprint of the antenna assembly while maintaining independent component functionality.
3Ease of manufacture
If multiple discrete components are assembled together, then the system can be built from standard parts, but assembly, installation, and servicing become complicated
Solution Approach 1:
The integrated antenna assembly combines the transmit module, receive module, waveguide network, and heat sink into a single pre-assembled unit that mounts to the antenna as one component. This eliminates the need for field technicians to perform complex multi-step assembly procedures involving multiple fasteners, alignment procedures, and thermal interface installations.
4Ease of repair
If discrete components are used, then replacement of individual components is possible, but the large number of parts increases cost and complexity
Solution Approach 1:
The patent integrates multiple components into a single replaceable antenna assembly unit. If a failure occurs, the entire integrated assembly can be replaced as one unit, or the transmit and receive modules can be independently accessed and replaced by removing the entire assembly and swapping modules, simplifying the repair process while reducing the total number of separate parts in the system.
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 integrated signal chain reduces part count, simplifies assembly and servicing, and minimizes the overall footprint by integrating transmit and receive components into a compact, planar assembly, enhancing reliability and reducing installation complexity.
Implementation Method 1
The waveguide network includes a first transmit waveguide channel configured to communicate first transmit electromagnetic signals associated with an antenna from a first transmit port to an antenna feed port, and a first receive waveguide channel configured to communicate first receive electromagnetic signals associated with the antenna from the antenna feed port to a first receive port
Implementation Method 2
a thermal management assembly configured for airflow in an airflow path to dissipate heat from one or more components of the transmit module, the receive module, and the modem
Data Source
AI summary
An integrated signal chain includes a waveguide network defined by first and second waveguide layers forming a waveguide stack. A first transmit waveguide channel (WGC) is configured to communicate first transmit electromagnetic signals from a first transmit port to an antenna feed port, and a first receive WGC is configured to communicate first receive electromagnetic signals from the antenna feed port to a first receive port. A transmit module is attached to an exterior side of the first waveguide layer, and the first transmit WGC couples the transmit module to the antenna. A receive module is attached to the exterior side of the first waveguide layer, and the first receive WGC couples the antenna to the receive module. A modem may be included. A thermal management assembly can be configured to dissipate heat from the modem, the receive module, and/or the transmit module.