کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
545581 | 1450479 | 2016 | 10 صفحه PDF | دانلود رایگان |
• The work comprises a varactorless VCO, frequency doubler, and programmable divider.
• Channel switching uses a multiphase selection, high-speed programmable divider.
• The VCO uses a tunable transformer-base inductor and novel varactorless technique.
This paper discusses the design and fabrication of a high-frequency wide-range frequency synthesizer based on a phase locked loop (PLL), varactorless LC-type voltage-controlled oscillator, and push–push frequency doubler. In addition, a high-speed programmable divider using multiphase selection is employed for channel switching. The proposed circuits were fabricated in a standard 90-nm CMOS process with a chip area of 0.8 mm×1.1 mm. The PLL dissipated 60 mW when the supply was 1.2 V. The measured phase noise of the frequency synthesizer at a frequency of 17.64 GHz and offset of 1 MHz was −97 dBc/Hz.
Journal: Microelectronics Journal - Volume 49, March 2016, Pages 19–28