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| Content Provider | IET Digital Library |
|---|---|
| Author | Tsai, Pei Kang Huang, Tzuen Hsi Chen, Yu Ting |
| Abstract | A dual-band quadrature voltage-controlled oscillator (QVCO) with high figure-of-merits (FOMs) and cost-area efficiency is presented by integrating with differential inner-diamond-structure switchable inductors which have improved performances. This proposed QVCO is fabricated in a 0.18-μm complementary metal-oxide semiconductor process with an active-region area of 0.61 mm2. The QVCO core totally consumes 6.8 mA from 1.8 V supply voltage. The frequency tuning ranges are 120 MHz (from 3.18 to 3.3 GHz) for the low-band and 500 MHz (from 6.94 to 7.44 GHz) for the high-band, while the tuning voltage rises from 0 to 1.8 V. The best phase noises with an offset frequency of 1 MHz from the oscillation frequency in the low- and high-bands are −121.9 and −117.5 dBc/Hz, respectively. The measured phase errors in both high-band and low-band are less than 1°. The calculated FOMs, no matter the switch is off or on, are better than −180 dBc/Hz. |
| Starting Page | 368 |
| Ending Page | 375 |
| Page Count | 8 |
| ISSN | 1751858X |
| Volume Number | 7 |
| e-ISSN | 17518598 |
| Issue Number | Issue 6, Nov (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-cds/7/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-cds.2013.0098 |
| Journal | IET Circuits, Devices & Systems |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | CMOS Integrated Circuit Complementary Metal-oxide Semiconductor Process Cost-area Efficiency Current 6.8 MA Differential Inner-diamond-structure Switchable Inductors Dual-band Quadrature Voltage-controlled Oscillator FOM Frequency 120 MHz Frequency 500 MHz Frequency Tuning Ranges High Figure-of-merits Inductor Inductors And Transformer Oscillator Phase Noise Phase Noises Power Electronics Power Supply Power Supply Circuit QVCO Size 0.18 Mum Supervisory Circuit Supervisory Control Signal Voltage 0 V to 1.8 V Voltage-controlled Oscillator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Electrical and Electronic Engineering |
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