V.N. Ikonnikov1, N.S. Kornev2, A.V. Nazarov3, Yu.A. Svetlakov4

1–4 FSUE RFNC «All-Russian Research Institute of Experimental Physics» (Sarov, Russia)
1 ikonnikov-vn@yandex.ru, 2 korneff15@rambler.ru, 3 nazarov52@mail.ru, 4 usvetlakov@niiis.nnov.ru

Questions of the choice and development of technology of dimensional processing of the waveguide channel by method of elect­roerosion processing at the waveguide of pyramidal horn transition which is intended for transition from the standard section of a wave guide to a wave guide of the overdimensioned section applied for the purpose of decrease in a running propagation loss in the feeder line of the radio interferometer of three-millimeter range of lengths of waves are considered.

Technical requirements are provided to processing of the waveguide channel of transition and the technology providing production of the channel with a necessary accuracy and quality of processing.

The shaping of the waveguide channel of transition is carried out by method of electroerosion dimensional processing with application of multipass processing, double-circuit processing, etc. The developed technology provides production of transitions for the three-millimeter range of lengths of waves.

Observed datas of value of size of easing and standing wave ratio of a piece of a transmission line which the made experimental models of pyramidal horn transitions enter are provided.

Assessment of size of running losses and signal attenuation when passing electromagnetic wave through transition in the set frequency band showed acceptable results for application of the examined type of transitions as a part of antenna-feeder system of the radio interferometer of three-millimeter range of lengths of waves.

The obtained experimental results allowed to verify the technological process of shaping with high accuracy of dimensions and low roughness of the processed surfaces of the waveguide transition channel. The results allowed to increase in the course of design of radio interferometers the admissible length of the feeder line due to decrease propagation loss.

Ikonnikov V.N., Kornev N.S., Nazarov A.V., Svetlakov Yu.A. The technology of dimensional processing of channels in the waveguide transitions for extremely high-frequency range. Achieve­ments of modern radioelectronics. 2026. V. 80. № 1. P. 26–32. DOI: https://doi.org/10.18127/j20700784-202601-03 [in Russian]

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