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العنوان
Injection-Locked Ring Oscillators /
المؤلف
Ibrahim, Eman Salah El-Din Fahmy.
هيئة الاعداد
باحث / Eman Salah El-Din Fahmy Ibrahim
مشرف / Ismail Mohamed Hafez
مشرف / Sameh Assem Ibrahim
مناقش / Elsayed Mostafa Saad
تاريخ النشر
2019.
عدد الصفحات
112 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/2019
مكان الإجازة
جامعة عين شمس - كلية الهندسة - قسم هندسة الالكترونيات والاتصالات الكهربية
الفهرس
Only 14 pages are availabe for public view

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Abstract

This thesis discusses the analysis and the design of an injection-locked ring oscillator for forward-clocking architecture in serial-link transceivers. The injection locking mechanism is analysed and employed in the super-harmonic injection locking scheme.
In this scheme, super-harmonic injection is introduced to a ring oscillator to achieve low phase noise, low rms jitter and a better figure of merit. The ring oscillator was built using Maneatis delay cells for its advantages, like the simple design, high supply/substrate noise rejection and good control over delay.
Simulation results of a 130-nm CMOS design demonstrate the feasibility of the proposed design, achieving the lowest phase noise, jitter and area consumption with respect to many other designs and topologies. It operates at a frequency of 1.52 GHz, with an injection clock of 7.6 GHz. Simulation results show a 58-MHz locking range, achieved with a power consumption of 9.93 mW. Simulation results of RMS jitter, phase noise and phase deskew across a range of oscillation frequencies (1.51 GHz  1.53 GHz) are illustrated and discussed.
The thesis is divided into five chapters, in addition to lists of contents, figures, tables, abbreviations and symbols, as well as list of references and publications.
Chapter 1
Chapter 1 is an introduction that discusses the evolution of different clocking architectures and an overview of serial-link transceivers, followed by the problem statement and thesis outline.
Chapter 2
Chapter 2 is an introduction to injection locking, its advantages and disadvantages, and the most common design considerations. In addition, a literature survey of different implementations and structures of oscillators and delay cells is included.
Chapter 3
Chapter 3 introduces the proposed architecture and discusses the circuit level of the design in 130-nm CMOS technology.
Chapter 4
Chapter 4 includes the simulation results of the proposed design, in addition to a comparison with other published designs.
Chapter 5
Finally, chapter 5 concludes the thesis and proposes some suggestions for future work.
Key words: Injection Locking, Injection Locked Oscillators, Ring Oscillators, ILO, ILRO, super-harmonic, Maneatis Delay Cell, Phase Noise, Time Jitter.