| Autor: |
Boyu Nie, Kangsheng Chen, Yayue Dai, Jinfang Zhou |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
2009 Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics (PrimeAsia). |
| DOI: |
10.1109/primeasia.2009.5397440 |
| Popis: |
The unlicensed band around 60GHz has been allocated for wireless communications at data rates of several gigabits per second, consequently the high speed transceivers operating at 60GHz is receiving significant research interest. This paper presents a 60GHz voltage-controlled oscillator using linear superposition technique in SMIC 0.18µm CMOS technology. This technique demonstrates the design feasibility for an oscillator whose output frequency is much higher than the device f max . The proposed circuit consists of a quadrature voltage-controlled oscillator (QVCO) and a transconductance stage. The circuit exhibits a wide tuning range of 3.6GHz and a phase noise of −85 dBc/Hz at 1MHz offset within the entire frequency range while consuming 30.8 mW power from a 1.4V supply voltage. The output power with a 50Ω load is about −33 dBm without an output amplifier. In the real system, the output load should be replaced by 50–100fF capacitive load and the output power can reach about −20 dBm. The circuit occupies a core area of 650×700 µm2. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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