MIPT: Duplexer Block for the transceiver radio module of the 5G mobile communication system

Main article: Communication equipment (Russian market)

2024: Passing Radio Function Node Tests for 5G Communication System

Engineers MIPT , together with the industrial partner Teleport LLC, tested a duplexer unit for the system's transceiver radio module. mobile communication 5G The product is completely made on the domestic component base and is part of the project to create the Russian telecom a -infrastructure. This was announced on November 1, 2024 by representatives of the Moscow Institute of Physics and Technology.

As reported, as part of this work, Fiztech creates filters on cavity resonators - special devices designed for use of fourth and fifth generation (/ 4 5G) networks in base stations. They are responsible for suppressing the parasitic components of the signal at the input of the radio module and optimizing electromagnetic compatibility and play a key role in ensuring the efficient operation of communication systems.

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MIPT

The principle of operation of cavity resonators is based on the use of metal or dielectric elements of a certain shape and size. They create cavities with frequency characteristics that make it possible to effectively suppress undesirable components of signals.

The main components of the design of high-frequency filters on cavity resonators include:

• metal or dielectric housing providing mechanical strength and protection against external influences;
• a set of cavity resonators with a natural tuning frequency;
• excitation and matching system providing signal transmission between resonators and external devices.

According to the developers, the use of such filters allows you to optimize the characteristics of 4/5G base stations, providing a more reliable and stable connection, as well as reducing the level of interference and mutual influence between different communication systems.

As a result of tests on the basis of Teleport LLC (Izhevsk) and in the pilot zone of MIPT, duplexer filters (a device designed to organize duplex radio communication using one common antenna for receiving and transmitting signals. It contains two RF filters with disjoint frequency bands with high transmission factor of amplitude-frequency characteristics and operates on the basis of frequency selection of signals) showed a barrier level in cross frequency bands of more than 120 dB, which fully complies with the terms of reference.

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MIPT

Filters have shown their readiness to work. This is only part of a large project to create its own 5G network in Russia. Our team is also developing active antenna devices based on phasing antenna array technology and other nodes for base stations. In the future, our developments will be used in various domestic equipment. And this is not just about the speed of access to the Internet. Our technologies will be used in robotics, self-driving cars, the development of artificial intelligence and high-tech services. told Grigory Seregin, Head of the Department of Applied Research and Development of Promising Cellular Solutions at MIPT, Director of the Research Center for Mobile Communications Components and Technologies for their Production at MIPT

At the next stage, it is planned to integrate the developed design of multiplexers into the housing of the domestic transceiver radio module and expand the product line of ready-made filters to other frequency bands.

Specialists from the Moscow Institute of Physics and Technology are also developing a technological solution for connecting to 5G through satellites. The technology will ensure the availability of fifth-generation communication for residents of remote regions of Russia without deploying a full-fledged infrastructure of cellular operators on the ground. The solution will be in demand primarily by enterprises that extract natural fossils, for example, in mines, gas fields or in working villages.

The development of 5G-based satellite services opens up horizons in the field of communications and the Internet of Things. Thanks to the integration of satellite technologies and fifth-generation networks, we will be able to ensure the functioning of robotic complexes and technological equipment in autonomous mode without increasing the load on the satellite communication channel in remote regions. As of October 2024, these technologies are being developed in the pilot zone of MIPT. noted Anton Khudykin, Deputy Head of the Research Center for Telecommunications MIPT

According to the plans of the Ministry of Digital Development for the development of mobile communications in Russia, the deployment of 5G networks in Russia will take place gradually, starting in 2028. One of the key conditions for the implementation of this project is the mass production of domestic equipment.