Temperature‐dependent characteristics of a RTD‐based microwave push‐push oscillator

Abstract

In this letter, the temperature dependence of a microwave push-push oscillator based on a resonant tunneling diode (RTD) has been investigated from 308C to 808C. An output power characteristic curve of the second-harmonic RTD oscillator has been shifted to the higher bias voltages as temperature increases. An oscillation frequency shift of Df OSC has been obtained to be -9.8 MHz/K which is equivalent to the Df OSC of -4.9 MHz/K at the fundamental oscillation frequency of 14.45 GHz. To authors' knowledge, this is the first report on the temperature dependent characteristics of the second-harmonic push-push RTD oscillator. K E Y W O R D S oscillator, push-push, resonant tunneling diode, second-harmonic, voltage controlled oscillator Microw Opt Technol Lett. 2018;803-1066. wileyonlinelibrary.com/journal/mop V C 2018 Wiley Periodicals, Inc. | 803