V.S. Ivlev1, A.S. Kochubey2

1,2 JSC «Taganrog Research Institute of Communications» (Taganrog, Russia)

1 vic8@ya.ru, 2 l.co4ubey@ya.ru

One of the tasks in the design of systems using antenna arrays (AR) is to provide multi-channel signal amplification. At the same time, special attention is paid to the identity of the phase-frequency characteristics (FFC) and transmission coefficients (KP) of channels, since these parameters have a significant impact on the directional pattern of the AR.

The object of research in this work is a batch of sixteen controlled nine-channel amplifier modules operating in the centimeter wavelength range, which is used to amplify signals in a system using AR.

The aim of the work is to study the non-identity of the electrical parameters of a multichannel amplifier module and to develop a methodology for adjusting the identity of these parameters.

The paper presents a functional diagram and a brief description of the module design, a description of the methodology for selecting the reference channel and setting up the identity of the main characteristics of the channels on the reference (reference) channel. The deviation of the non-identity of the phase-frequency response, the effect of changes in the Rfx and the length of the delay line on the deviation of the main characteristics relative to the reference channel were investigated.

The results obtained allow us to recommend a tuning technique for use when setting up channel identity in multichannel systems.

Ivlev V.S., Kochubey A.S. Nine-channel amplifier module of the centimeter wave range for the antenna array. Radioengineering. 2023. V. 87. № 11. P. 66−73. DOI: https://doi.org/10.18127/j00338486-202311-11 (in Russian)

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