A wide-range 22-GHz LC-based CMOS voltage-controlled oscillator
| Autor: | Mohammed Ranneh, Khaldoon Abugharbieh, Karam Gharbieh |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry 020208 electrical & electronic engineering Electrical engineering 020206 networking & telecommunications 02 engineering and technology LC circuit Capacitance law.invention Inductance Voltage-controlled oscillator CMOS law Phase noise 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Transformer Varicap |
| Zdroj: | International Journal of Electronics. :1-18 |
| ISSN: | 1362-3060 0020-7217 |
| DOI: | 10.1080/00207217.2017.1419380 |
| Popis: | This work presents a novel voltage-controlled oscillator (VCO) design and simulations that combine a varactor bank with a transformer in the LC tank to achieve a high-frequency range. While the varactor bank is responsible for changing the capacitance in the LC tank, the transformer acts as a means to change the value of the inductance, hence allowing tune-ability in the two main components of the VCO. A control mechanism utilises a mixed-mode circuit consisting of comparators and a state machine. It allows efficient tuning of the VCO by controlling the capacitance and transformer in the LC tank. The VCO has a 10.75–22.43 GHz frequency range and the VCO gain, KVCO, is kept at a low value ranging from 98.6 to 175.7 MHz/V. The simulated phase noise is −111 dBc/Hz at 1 MHz offset from the 10.75 GHz oscillation frequency. The circuit is designed and simulated in 28 nm CMOS technology and uses a 1 V supply drawing a typical power of 14.74 mW. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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