Earticle

초록

영어

A novel way of achieving the well-known FSK(Frequency-Shift Keying) modulation was introduced and verified. A simple form of CMOS ring-oscillator, that is generating a GHz level of frequency, was used as a base frequency generator. With its fractal structure, a local change in the oscillator will yield a global frequency change, which is to serve for the FSK. A local change is done with different number of inverting amplifiers in the ring oscillator with a multiplexer. Depending on how many cell changes, the frequency shifts are controlled and can be selected. The measured frequency difference between the shifts was from 9.2% up to 22.5%, in GHz range in CMOS SPICE simulations. Layout for CMOS implementation is also included.

목차

Abstract
 1. Introduction
 2. GHz-level Clock Distribution Technique with a CMOS Fractal Oscillator
  2.1. CMOS Fractal Oscillator Structure
  2.2. Fractal oscillator for FSK(Frequency-Shift Keying) modulation
  2.3. Fractal Oscillator FSK Modulation with different Number of Cells
 3. SPICE Simulation Results for the FSK Modulation
 4. Conclusions and Future Studies
 References

키워드

저자

• Sung-Jin Kim [ Department of Electronic Engineering, Hallym University 1 Hallymdaehak-gil, Chuncheon, Gangwon-do, Korea ]
• Won-Yong Choi [ Department of Electronic Engineering, Hallym University 1 Hallymdaehak-gil, Chuncheon, Gangwon-do, Korea ]
• Kang-In Heo [ Department of Electronic Engineering, Hallym University 1 Hallymdaehak-gil, Chuncheon, Gangwon-do, Korea ]
• Gyu Moon [ Department of Electronic Engineering, Hallym University 1 Hallymdaehak-gil, Chuncheon, Gangwon-do, Korea, Research Institute of Informatics and Electronic Engineering, Hallym University 1 Hallymdaehak-gil, Chuncheon, Gangwon-do, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605