Version 1
: Received: 2 February 2020 / Approved: 4 February 2020 / Online: 4 February 2020 (10:45:44 CET)
How to cite:
Livreri, P.; Lo Gerfo, F. A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM. Preprints2020, 2020020045. https://doi.org/10.20944/preprints202002.0045.v1
Livreri, P.; Lo Gerfo, F. A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM. Preprints 2020, 2020020045. https://doi.org/10.20944/preprints202002.0045.v1
Livreri, P.; Lo Gerfo, F. A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM. Preprints2020, 2020020045. https://doi.org/10.20944/preprints202002.0045.v1
APA Style
Livreri, P., & Lo Gerfo, F. (2020). A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM. Preprints. https://doi.org/10.20944/preprints202002.0045.v1
Chicago/Turabian Style
Livreri, P. and Fabio Lo Gerfo. 2020 "A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM" Preprints. https://doi.org/10.20944/preprints202002.0045.v1
Abstract
Microwave Power Modules (MPM) are high power devices largely used for radar applications. An MPM is a hybrid combination of a Solid-State Power Amplifier (SSPA) as a driver and a Traveling wave tube amplifier (TWT) as the final high power stage. Power equalizer is often used to flat the TWT output power gain owing to its big gain fluctuations in the operating frequency range. This paper deals with an optimal design and development of a fully-coaxial easy-tunable power equalizer for an X-band MPM. The structure utilizes a coaxial waveguide as the main transmission line and a coaxial cavity loaded with absorbing material as the resonant unit. A sensitivity analysis of the coaxial cavity length, the thickness of the absorbing disc and inserted depth of the probe on the attenuation amplitude and resonant frequency is carried out. The transmission characteristic curves and the voltage standing wave ratio curves show a good compromise in terms of transferred power and adaptive matching impedance at the input and output ports. The measured results show that the equalization curve meets the requirements well and prove that this structure is practical and effective.
Keywords
Broadband power equalizer; coaxial; MPM; TWT; X-band
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
