Title :
Design and analysis of UHF BJT feedback oscillator using linear and non-linear simulation
Author :
Pramod, K.B. ; Kumaraswamy, H.V. ; Pradeep Kumar, B.P. ; Prathap, C. ; Swamy, Mahesh
Author_Institution :
Dept. of Electron. Eng., Jain Univ., Bangalore, India
Abstract :
This paper presents a methodological approach to analysis and design of UHF BJT feedback oscillators based on linear and non-linear simulations. The BJT oscillator designed using a Radio Frequency (RF) BJT NE685M03 nonlinear device model with the collector grounded to provide the negative resistance and lossy coaxial transmission line with isolated shield terminals in the resonator to set the frequency of oscillation. In particular, it is shown how to find the conditions appropriate for oscillations and performed in a non-linear simulation to predict output frequency, output power, and phase noise of the oscillator from linear simulation. Finally an oscillator is designed and simulated for the frequency of 1.32GHz in the AWR design environment (AWRDE) will be used for the aeronautical radio navigation, amateur radio and military applications.
Keywords :
UHF bipolar transistors; UHF oscillators; phase noise; semiconductor device models; AWR design environment; AWRDE; UHF BJT feedback oscillator; aeronautical radio navigation; amateur radio application; frequency 1.32 GHz; isolated shield terminal; linear simulation; lossy-coaxial transmission line; methodological approach; military application; negative resistance; nonlinear simulation; oscillator phase noise; output frequency prediction; output power prediction; radiofrequency BJT NE685M03 nonlinear device model; resonator; Frequency measurement; Phase noise; Probes; Resonant frequency; Transistors; AWR; Bipolar Junction Transistor (BJT) Coaxial Transmission Line; Linear Simulation; Oscillation Analysis Probe (OSCAPROBE); Oscillator Open-Loop Test (OSCTEST); Phase Noise; Ultra High Frequency (UHF);
Conference_Titel :
Emerging Trends in Communication, Control, Signal Processing & Computing Applications (C2SPCA), 2013 International Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4799-1082-3
DOI :
10.1109/C2SPCA.2013.6749386
