The describing function theory is a powerful mathematical tool to predict oscillations in non-linear dynamical systems. This here invoked design random signal generator and realized by using analog electronic elements. Then, according experimental results, histograms of the resultant are shown along with generated time domain. Finally, proposed circuit simple cheap construct.

In this paper, the design of a wideband RF signal generator for demodulator/receiver testing is presented. The design of test generator is based on direct digital synthesizer (DDS) and voltage-controlled oscillator (VCO), controlled by microprocessor. It provides generation of arbitrary waveform signal up to 4.5 GHz. Output signal level is adjustable with precision of 0.5 dB. Dynamic range of R...

This paper presents a method for increasing the operating frequency range of sub-6 GHz transmitter to millimetre wave (mm-wave) using two cascaded doublers. The usage such up-conversion approach is constrained since applying first doubler’s generated harmonics second doubler mm-wave signal creation, results in severe distortions and bandwidth expansion transmitted signal, limiting use method. W...