POWER PERFORMANCE AND SPURIOUS FREQUENCIES ANALYSIS OF COMPOSITE RIGHT-/LEFT-HANDED (CRLH) DISTRIBUTED OSCILLATORS | Zendy

G. Bartolucci | Zendy; Stefan Simion | Zendy; L Scucchia | Zendy

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POWER PERFORMANCE AND SPURIOUS FREQUENCIES ANALYSIS OF COMPOSITE RIGHT-/LEFT-HANDED (CRLH) DISTRIBUTED OSCILLATORS

Author(s) -

G. Bartolucci,

Stefan Simion,

L Scucchia

Publication year - 2018

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl18010944

Subject(s) - spurious relationship , left handed , composite number , power (physics) , electronic engineering , physics , acoustics , materials science , computer science , engineering , optics , composite material , quantum mechanics , machine learning

This paper concerns the analysis of the performance of a Composite Right-/Left-Handed (CRLH) distributed oscillator. In order to increase its output power, a modification of the standard configuration is proposed. The basic idea is to combine the signals from the two output ports of the structure by means of a Wilkinson combiner, so obtaining a single output generator. The power performance of the conventional two output oscillator and the power performance of the new configuration are numerically compared by changing the number of employed transistors. The same procedure is adopted to analyze the amplitude of the higher order harmonics in the generated signals as a function of the number of active elements. On the basis of simulated data an increase of the output power, together with a second harmonic reduction, is expected for the single output oscillator with respect to the standard CRLH topology. Experimental results fully confirm these numerical predictions.

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