Beamformer IC Addressing Using Multi-State Address Pins
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Solution Overview
Problem
Active phased array antennas face challenges in efficiently addressing and communicating with a large number of beamformer integrated circuits due to limited space and the need for a smaller footprint, especially at higher frequencies, where traditional binary logic addressing requires multiple hard-wired address pins, leading to inefficiencies and increased complexity.
Innovation Solution
A method that uses a logical encoder to generate unique addresses for beamformer integrated circuits by combining outputs from logical buffers detecting multiple set states of an address pin, reducing the number of necessary address pins and enhancing address space without additional external components, allowing for efficient communication in high-density phased array systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional binary logic addressing with multiple hard-wired address pins is used, then each beamformer integrated circuit can be uniquely identified, but the number of address pins increases and the footprint increases
Solution Approach 1:
The patent combines multiple address pin functions into a single address pin by detecting multiple set states (e.g., high, low, and floating states) of that one pin. This merging approach allows the single pin to provide the addressing capability that traditionally required multiple pins, thereby reducing the footprint while maintaining addressing precision.
Solution Approach 2:
The patent changes the parameter of the address pin from binary (two states) to multi-state (at least three states: high, low, and floating). By detecting these multiple set states, the system can encode more address information in a single pin, reducing the number of pins needed while maintaining the ability to uniquely identify each beamformer integrated circuit.
2Measurement precision
If multiple hard-wired address pins are used for each beamformer integrated circuit, then unique addressing is achieved, but the device complexity and number of connections increase
Solution Approach 1:
The patent merges the functionality of multiple address pins into a single address pin by utilizing multiple detectable states of that one pin. This reduces the device complexity by eliminating the need for multiple separate address pins and their associated connection circuits, while still achieving unique addressing capability for each beamformer integrated circuit.
Solution Approach 2:
The single address pin serves multiple functions by detecting at least three different set states (high, low, and floating). This multi-functionality allows the pin to encode more information than a traditional binary pin, providing unique addressing capability without requiring multiple specialized pins for each address bit.
3Area of moving object
If a single address pin with multiple set states is used, then the number of address pins is minimized and footprint is reduced, but the logic complexity for detecting and encoding states increases
Solution Approach 1:
The patent segments the address detection function into multiple logical buffers, where each buffer detects a specific set state of the address pin. This segmentation allows the complex multi-state detection to be broken down into simpler, modular buffer stages, making the logic more manageable and implementable while still achieving the goal of minimizing the footprint.
4Adaptability or versatility
If traditional addressing methods are used, then simplicity of implementation is maintained, but the scalability to large numbers of beamformers is limited
Solution Approach 1:
The patent changes the parameter of the address pin from binary to multi-state, enabling a single pin to represent more address values. This allows the system to scale to a larger number of beamformers without proportionally increasing the number of address pins, thereby improving adaptability and address space while controlling device complexity.
Data Source
AI summary
Disclosed is a method comprising determining that a signal is to be provided to a beamformer integrated circuit using a control interface associated with the beamformer integrated circuit, identifying, within, at least one memory, a unique address of the beamformer integrated circuit, wherein the beamformer integrated circuit is aware of own unique address based on a set state of an address pin of the beamformer integrated circuit, wherein the set state of the address pin is one of at least three available set states, the set state being provided as an input to three logical buffers electrically coupled to the beamformer integrated circuit, and outputs from the three logical buffers being combined using a logical encoder that generates the unique address, and providing the signal to the beamformer integrated circuit using the unique address.