Low-frequency amplifier on the mPC1335V chip. Scheme, description

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Low-frequency amplifier on the mPC1335V chip. Encyclopedia of radio electronics and electrical engineering

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Imec Reference Antenna Module for 60 GHz Access Points 17.10.2018

To increase the volume of transmitted data, communication systems are beginning to conquer the millimeter wave band, in particular, the band around 60 GHz, which does not require frequency licensing to operate. He is open. Today, the 60 GHz 802.11ad standard is used to transmit data over very short distances (up to 10 meters, but in practice - almost close). For example, it turned out to be very relevant for headsets with immersion in virtual reality. A new 60 GHz 802.11ay standard is being prepared, which will expand the communication range from 10 to 300 meters. Also, the 60 GHz band can be used in 5G cellular networks to organize local subnets.

Phased antenna arrays (PAR) have been and remain one of the important components of millimeter-wave transceivers. The PAR can be used to control the antenna lobes, providing the maximum data rate over multiple channels with the best efficiency. In combination with RF power amplifiers, this is a rather expensive element of the transceiver system, which can be made cheaper with the help of unified reference modules. Pharrowtech, a business unit spun off from Imec as part of the institute's commercial incubator, has developed exactly such a module for distribution through OEM channels.

This is a module in the form of a compact active phased antenna array of 256 elements with 128 power amplifiers. The solution is assembled from "available" serial components and is presented as one of the most inexpensive among analogues. At the same time, the AFAR directivity angle is extremely wide, and the transmission range is unprecedentedly large. The solution is designed to create fixed access points for homes and service repeaters in the 60 GHz range to provide Internet to residents of rural areas, megacities and suburban areas.

Imec believes that 60GHz wireless technology will help close the need for high-speed digital communications even where cable Internet is offered. Deploying wireless points is faster and cheaper than laying cable, and moving to the 60 GHz band will solve the problem of increasing throughput.

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