On the Design of a High-Performance mm-Wave VCO With Switchable Triple-Coupled Transformer
| العنوان: | On the Design of a High-Performance mm-Wave VCO With Switchable Triple-Coupled Transformer |
|---|---|
| المؤلفون: | Milad Haghi Kashani, Shahriar Mirabbasi, Ehsan Afshari, Reza Molavi, Amirahmad Tarkeshdouz, Ali Sheikholeslami |
| المصدر: | IEEE Transactions on Microwave Theory and Techniques. 67:4450-4464 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Radiation, business.industry, dBc, 020206 networking & telecommunications, 02 engineering and technology, Condensed Matter Physics, Inductor, 7. Clean energy, law.invention, Voltage-controlled oscillator, law, Phase noise, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Figure of merit, Electrical and Electronic Engineering, business, Transformer, Cmos process |
| الوصف: | In this article, we present a circuit technique to design a wide tuning range (TR) voltage-controlled oscillator (VCO). The employed technique extends the TR with a minimal adverse effect on the phase noise (PN). In this context, a switchable triple-coupled transformer, implemented utilizing the topmost three metal layers of the process, is proposed to achieve a wide TR and a low PN. In the proposed configuration, the mutual coupling between the loads is increased while canceling the negative effects of the switches on the transformer performance. Depending on the possible states of the switches used in the secondary and tertiary coils, four overlapping frequency sub-bands are introduced. An extensive set of analysis is provided to support the idea. As a proof-of-concept, a 55-GHz VCO is implemented in a 65-nm CMOS process. Based on the measurement results, the VCO achieves an average PN of −111.9 dBc/Hz at 10-MHz offset over the entire frequency range and a TR of ~18%, from 50.1 to 59.8 GHz, exhibiting a figure of merit incorporating the TR (FOM $_{T}$ ) of −184 dBc/Hz at 10 MHz. The VCO core consumes 6.2 mW from a 1-V supply and, excluding the pads, occupies a compact silicon area of 0.06 mm2. |
| تدمد: | 1557-9670 0018-9480 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a6ca1160a9ac9ecd9dc824c3af0b6313 https://doi.org/10.1109/tmtt.2019.2938943 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........a6ca1160a9ac9ecd9dc824c3af0b6313 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15579670 00189480 |
|---|