Modular RF Aperture Cooling Assembly for Broadband Signal Capture
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Solution Overview
Problem
Current RF aperture designs face challenges in achieving compactness, lightweightness, and efficient broadband RF signal capture and transmission due to limitations in modular interconnectivity and cooling systems, which affect their scalability and performance.
Innovation Solution
The RF aperture incorporates a digital personality circuit board (DPB) with a matrix of tapered elements on an air interface plane (AIP), modularly interconnected circuit boards for flexible operation, and a cooling assembly with heat sinks and fans to maintain efficient operation, allowing for compact and scalable broadband RF signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional RF aperture designs are used, then broadband RF signal capture is achieved, but the system becomes bulky and heavy
Solution Approach 1:
The RF aperture is divided into multiple circuit boards (AIP circuit board, conditioning circuit board, splitting/combining circuit board, power supply circuit board) that can be independently designed, manufactured, and assembled. Each board handles specific functions, allowing the overall system to be optimized for weight while maintaining broadband RF signal capture capabilities through modular architecture.
Solution Approach 2:
The patent transitions from traditional planar or volumetric RF aperture structures to a stacked three-dimensional arrangement of circuit boards. This vertical stacking reduces the horizontal footprint and allows for more efficient use of space, resulting in a compact, lightweight design that maintains full RF functionality.
2Adaptability or versatility
If modular circuit board design is implemented, then flexibility and scalability improve, but interconnection complexity increases
Solution Approach 1:
The circuit boards are designed with universal interconnection interfaces that can handle multiple functions (RF signal transmission, power distribution, grounding) through standardized connection points. This universality simplifies the interconnection process between modular components while maintaining the ability to reconfigure the system for different applications.
Solution Approach 2:
The patent introduces intermediate connection structures and standardized interface designs that mediate between different modular circuit boards. These intermediaries provide consistent electrical and mechanical connection protocols, reducing the complexity of interconnections while enabling flexible system configuration and scalability.
3Temperature
If cooling assembly is added, then thermal management improves, but device complexity increases
Solution Approach 1:
The cooling assembly is integrated with the existing modular circuit board structure rather than being added as a separate subsystem. Heat sinks are attached directly to heat-generating components on the circuit boards, and cooling channels are incorporated into the board designs themselves, combining thermal management functionality with the structural framework.
Solution Approach 2:
The cooling system is designed to leverage the natural airflow patterns and thermal conduction properties of the modular circuit board arrangement. Heat dissipation occurs through conduction across the circuit board materials and convection through air flow between stacked boards, reducing the need for complex active cooling mechanisms while maintaining effective thermal management.
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
This configuration enables a compact, lightweight, and scalable RF aperture that effectively transmits and receives broadband RF signals, improving performance and flexibility while maintaining efficient cooling and modular interconnectivity.
Implementation Method 1
a cooling assembly with heat sinks and fans to maintain efficient operation
Implementation Method 2
a cooling assembly with heat sinks and fans to maintain efficient operation
Implementation Method 3
neighboring tapered elements of the first matrix defining a transmission pixel within the first matrix and the first matrix of tapered elements cooperating to selectively transmit over-the-air RF signals
Data Source
AI summary
An air interface plane (AIP) of a radio frequency (RF) aperture includes: a circuit board having a first side and a second side opposite the first side; and a matrix of tapered elements arranged on the first side of the circuit board and secured to the circuit board, the matrix of tapered elements cooperating to at least one of receive or transmit an over-the-air RF signal. Suitably, each tapered element of the matrix has: a central hub extending along a longitudinal axis from a hub base which is proximate to the first side of the circuit board to an apex of the tapered element which is distal from the first side of the first circuit board; and a plurality of arms extending from the central hub at the apex of the tapered element, each of the plurality of arms including a first portion that projects the arm radially away from the longitudinal axis and a second portion that projects the arm longitudinally toward the first side of the circuit board.