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4G and 5g base station antenna engineering knowledge and application scenarios

更新日期： 2021-12-28
浏览次数： 3567

1. Overview of base station antenna This chapter introduces the classification of base station antennas and the appearance of different types of antennas in ……

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Comparison of HFSS and CST simulation of patch antenna

更新日期： 2021-12-28
浏览次数： 6210

Learn antenna is a dry cargo antenna technology column focusing on antenna simulation and debugging, supplemented by theoretical principles, including introduction to antenna, principle introduction of various antennas, simulation software modeling, desig

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How does 5g intelligent cockpit open a new era of automobile? Uncover the 30-year history of the Internet of vehicles you don't know

更新日期： 2021-12-28
浏览次数： 5393

The traditional car is an isolated individual. As the name suggests, Internet of vehicle (IOV) is to let the car connect to the Internet. This is a subdivided application of the Internet of things (IOT: Internet of things) in the automotive

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5g millimeter wave technology and base station solution

更新日期： 2021-12-28
浏览次数： 2478

Since five years ago, the network has gradually transitioned from 4G network to 5g network. One of the most obvious changes is the increase of network frequency. In the 4G era, we mainly use frequencies of 2.6GHz and below. In the 5g era, the frequency ba

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Analysis: 5g base station filter

更新日期： 2021-12-28
浏览次数： 4473

The filter is the core RF device of the base station. The filter filters the electromagnetic wave signal and only allows the required signal to pass through. The main purpose is to solve the interference problem between different frequency bands and diffe

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Status and Prospect of Satellite Internet Routing Technology

更新日期： 2021-12-28
浏览次数： 3093

1 Introduction Because of its wide area coverage and high reliability, satellite communication system is playing a more ……

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Basic knowledge and test details of IQ quadrature modulator

更新日期： 2021-12-28
浏览次数： 4298

1.Summary In recent years, mobile communication has been rapidly developed and popularized in China, and the transmitter and receiver technology of wireless ……

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How to solve the impedance mismatch in the field of high frequency signal transmission

更新日期： 2021-12-28
浏览次数： 3503

In the high frequency domain, the signal or electromagnetic wave must propagate along the transmission path with uniform characteristic impedance. In case of impedance mismatch or discontinuity, part of the signal is reflected back to the transmitting end

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Research on RF microsystem integration technology system and its development form

更新日期： 2021-12-28
浏览次数： 5082

The three-dimensional heterogeneous integration technology of micro system is the most promising technology to realize the requirements of higher integration, higher performance and higher working frequency of RF electronic system in the future. This pape

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5g base station filter industry research collection

更新日期： 2021-12-28
浏览次数： 3428

The filter is the core RF device of the base station. The filter filters the electromagnetic wave signal and only allows the required signal to pass through. The main purpose is to solve the interference problem between different frequency bands and diffe

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Very detailed basic knowledge of impedance test

更新日期： 2021-12-28
浏览次数： 7881

一、Basic concepts of impedance measurement Impedance definition： Impedance is the total reaction of components or circuits to perio……

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Science spectrum: j-20 black technology -- conformal antenna, radar absorption, stealth, phase control, fire control, photoelectric aperture, Flight Helmet

更新日期： 2021-12-28
浏览次数： 7127

With the service of China's heavy stealth fighter j-20 and the formation of initial combat effectiveness, as well as the aircraft's increasingly high-profile participation in joint exercises and practical military training at sea, its high-definit

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