Title :
A W-Band 2nd Subharmonic Injection-Locked Phase-Locked Loop with Large Locking Range
Author :
Zhou, Cao ; Xiaohong, Tang
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
This paper introduces a simple approach to obtain the equivalent locking range of the 2nd subharmonic injection-locked phase locked loop (S-ELPLL). Furthermore, the phase noise of the 2nd S-ILPLL is analyzed by using a linear phase noise model. Finally, a W-band 2nd S-ILPLL circuit was designed and tested; the experimental results demonstrate that the locking range is 60 times larger than that of the 2nd subharmonic injection-locked oscillator (S- ILO) . On the other hand, the phase noise will not deteriorate in the entire locking range as compared with that of the S-ILO. Therefore, it can be used in novel millimeter wave frequency synthesizer.
Keywords :
frequency synthesizers; injection locked oscillators; millimetre wave devices; phase locked loops; phase noise; frequency 75 GHz to 111 GHz; large locking range; linear phase noise model; millimeter wave frequency synthesizer; subharmonic injection-locked phase-locked loop; Coupling circuits; Diodes; Frequency; Gunn devices; Injection-locked oscillators; Millimeter wave technology; Phase locked loops; Phase noise; Varactors; Voltage-controlled oscillators; ILPLL; Locking Range; Phase Noise; W-Band;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393620
