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Design of 0.18-um cmos voltage controlled Oscillator (vco) for 2.45GHz iot application

Design of 0.18-um cmos voltage controlled Oscillator (vco) for 2.45GHz iot application_Tan Hui Wen
Ruang pintar dinaikkan taraf sebagai Internet Perkara (IoT) disebabkan oleh pertumbuhan pesat dalam pengecilan peranti elektronik dan integrasinya ke dalam produk harian. Salah satu blok hadapan RF bagi IoT yang mencabar ialah reka bentuk hingar fasa rendah dan litar kuasa rendah. Terdapat keperluan untuk meningkatkan prestasi pemancar-penerima untuk menangani cabaran ini. Pengayun voltan terkawal (VCO) mewakili blok penting untuk menentukan prestasi pemancar-penerima RF. Oleh itu, dalam penyelidikan ini, reka bentuk telah ditekankan pada VCO kuasa rendah. Dalam reka bentuk CMOS VCO, topologi khas yang dilaksanakan ialah VCO tangki LC. Walau bagaimanapun, untuk mencapai prestasi yang sama seperti VCO tangki LC pada penggunaan kuasa yang lebih rendah, VCO CMOS arus diguna semula telah dilaksanakan. VCO arus diguna semula kelas-C ini mempunyai kecekapan penukaran arus DC-RF yang lebih tinggi dan secara keseluruhan lebih baik dalam prestasi berbanding VCO kelas-B. Dalam penyelidikan ini, 0.18-um VCO kelas-C dengan topologi arus diguna semula yang menggunakan kuasa rendah telah dilaksanakan untuk aplikasi Internet Perkara (IoT) 2.45 GHz. Penggunaan kuasa dan hingar fasa adalah masing-masing 1.99 mW dan -110.0 dBc/Hz@1 MHz. Pada akhir kerja ini, prestasi yang dicapai oleh VCO kelas-C arus diguna semula dibandingkan dengan kerja oleh penyelidik lain dalam bidang yang sama. _______________________________________________________________________________________________________ Smart spaces is promoted as an antecedent to an Internet of Things (IoT) due to rapid growth of miniaturization of electronics and its integration into daily products. One of the challenging RF front ends blocks for IoT are the design of low phase noise and low power circuit. There is a necessity to raise the performance of transceiver to tackle this challenge. The voltage-controlled oscillator (VCO) represents the vital block to determine an RF transceiver performance. Hence, the design will be emphasized on low power VCO. In CMOS VCO design in this research, the typical topology implemented is the LC-tank VCO. However, to achieve the same performance as an LC-tank VCO at lower power consumption, a current reuse CMOS VCO was implemented. The current reuse class-C VCO has higher DC-RF current conversion efficiency and in overall more superior in performance than the class-B VCO. In this work, a 0.18-um current reuse class-C VCO consuming low power has been implemented for use in 2.45 GHz Internet of Things (IoT) applications. The power consumption and phase noise are 1.99 mW and -110.0 dBc/Hz@1MHz respectively. At the end of this work, the performance achieved by the current reuse class-C VCO will be compared with work by others in the same area.
Contributor(s):
Tan Hui Wen - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007714
Language:
English
Subject Keywords:
Smart spaces; Internet of Things (IoT); rapid growth
First presented to the public:
6/1/2018
Original Publication Date:
8/10/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 77
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-08-14 12:56:05.739
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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Design of 0.18-um cmos voltage controlled Oscillator (vco) for 2.45GHz iot application1 2018-08-14 12:56:05.739