Power Detection Squarer Module Calibration
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Solution Overview
Problem
Existing power detection methods require large dynamic range analog-to-digital converters (ADCs) for wide power detection ranges, leading to increased costs and performance degradation due to side effects from alternative mechanisms designed to avoid this requirement.
Innovation Solution
A method and apparatus utilizing a squarer module with a first and second squarer, along with a calibration module, to convert input signals into output signals with static and variation components, comparing these signals to generate a compensation signal that calibrates mismatch between the squarers, allowing for power level measurement without the need for a large dynamic range ADC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large dynamic range ADC is used for wide power detection range, then power detection range is improved, but cost and device complexity increase
Solution Approach 1:
The power detection function is segmented into multiple squarer modules, each handling a specific portion of the dynamic range. The first squarer module processes signals with a first dynamic range while the second squarer module processes signals with a second dynamic range, allowing the system to cover a wide overall power detection range without requiring a single large dynamic range ADC.
Solution Approach 2:
The patent introduces a calibration dimension by adding a calibration module that generates compensation signals. This calibration dimension allows the system to correct for mismatches between squarer modules, enabling accurate power detection across the wide dynamic range without requiring each individual module to have large dynamic range capabilities.
2Device complexity
If alternative mechanisms are designed to avoid large dynamic range ADC, then cost is reduced, but performance degrades due to side effects
Solution Approach 1:
The calibration module continuously generates compensation signals based on the difference between output signals from multiple squarer modules. This feedback mechanism corrects for mismatches and variations in real-time, maintaining high power detection accuracy without requiring a large dynamic range ADC.
Solution Approach 2:
The calibration module acts as an intermediary that mediates between the multiple squarer modules and the final power detection output. It generates compensation signals that correct for mismatches, ensuring accurate power detection while allowing the use of smaller dynamic range components.
3Adaptability or versatility
If multiple squarer modules are used for wide dynamic range, then power detection range is improved, but mismatch between modules increases
Solution Approach 1:
The calibration module monitors the output signals from multiple squarer modules and generates compensation signals based on detected mismatches. This feedback loop continuously corrects for variations between modules, maintaining measurement precision across the wide power detection range enabled by using multiple squarers.
Solution Approach 2:
The calibration module adjusts compensation parameters dynamically to match the operating conditions of each squarer module. By changing compensation parameters based on detected mismatches, the system maintains high measurement precision across different power levels and operating conditions.
Data Source
AI summary
An apparatus for performing power detection includes a squarer module and a calibration module that is coupled to the squarer module, where the squarer module includes a first squarer and a second squarer. The first squarer is arranged to convert an input signal of the squarer module into a first squarer output signal. In addition, the second squarer is arranged to output a second squarer output signal while a predetermined voltage level is input into an input terminal of the second squarer. Additionally, the calibration module is arranged to compare a difference between the first squarer output signal and the second squarer output signal with a reference signal to generate a comparison signal, and to compensate the difference according to the comparison signal, so as to perform a calibration on the apparatus. A method for performing power detection is also provided, and can be performed by utilizing the apparatus.