Effects of Nonlinear Bias Tuning of X-band Gunn Oscillator Based Frequency Modulators
The charecteristics of a frequency modulator based on bias tuned Gunn oscillators has been studied taking the nonlinear variation of oscillator frequency(ω)with bias voltage(V)into account.The dependence of ω on V by a finite order power series.The co-efficients used in the power series are estimated from experimental results of the bias tuning characteristics of the diode.Based on the proposed analytical relations,the shift has been expressed of centre frequency and the assymetry in power distribution in upper and lower side bands are analytically evaluated.This gives the proof of deleterious effects of nonlinear modulation.Results of hardware experiments confirm the analytical predictions.
B.C.Sarkar T.Banerjee A.K.Guin C.Koleye
Department of Physics,Burdwan University,India
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
1173-1176
2013-03-01(万方平台首次上网日期,不代表论文的发表时间)