A Study of the Lock Range of Injection-Locked CMOS Active-Inductor Oscillators Using a Linear Control System Approach
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Bibliographic record
Abstract
This brief investigates the lock range of injection-locked <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> oscillators using a linear control system approach. It explores the intrinsic relation between the lock range of injection-locked <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> oscillators and the injection-induced variation of the impedance of the <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> tank. We show that injection-locked active-inductor <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> oscillators exhibit a larger lock range, as compared with their passive counterparts. We further show that the large lock range of injection-locked active-inductor oscillators is due to both the low quality factor and the large injection-induced variation of the inductance of active inductors. These findings are validated using an injection-locked passive <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> oscillator and an injection-locked active-inductor <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> oscillator designed in IBM 0.13- μm 1.2-V CMOS technology.
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| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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