• Title/Summary/Keyword: 8T8R Combiner

Search Result 2, Processing Time 0.022 seconds

A Study on 5G Base Station Inspection using 8T8R Combiner (8T8R콤바이너를 이용한 5G 무선국 검사에 관한 연구)

  • Lee, Chang-Soo;You, Chan-Woo;Park, Sung-Il
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.17 no.2
    • /
    • pp.229-236
    • /
    • 2022
  • This article studied the radio station inspection method, which utilizes the 8T8R combiner to reduce 5G radio station inspection measurement times. It is a common that 5G radio station inspections measure RF (Radio Frequency) output signals, which correspond to the number of arrayed antennas individually. However, this study suggested a way to save the time spent on existing methods, by comparing measurement values of individual channels and 8T8R. As a result, it is confirmed that when the 8T8R combiner is used, not only the resulting value of radio station inspections was accurate, but also the measurement time being shortened by up to 8 times compared to existing method.

Design and Fabrication of Ka-band High Power and Low Loss Waveguide Combiner (Ka 대역 고출력 저손실 도파관 결합기 설계 및 제작)

  • Kim, Hyo-Chul;Cho, Heung-Rae;Lee, Ju-Heun;Lee, Deok-Jae;An, Se-Hwan;Lee, Man-Hee;Joo, Ji-Han;Kwon, Jun-Beom;Jeong, Hae-Chang;Kim, So-Su
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.21 no.3
    • /
    • pp.35-42
    • /
    • 2021
  • The research of amplifier have been actively conducted to replace the Traveling Wave Tube Amplifier (TWTA) in the mmWave. For Solid State Power Amplifiers (SSPA), which combine semiconductor-type devices to obtain high output, Low-loss, high-efficiency combination techniques are required to meet the required output as the output of a single relatively low device is relatively low. In this paper, we design and produce an 8-way waveguide combiner and a reflective loss of more than 20dB and a binding efficiency of 85% or more were identified. Field analysis calculates the critical power inside the combiner. It secured stable Power Ratings and built-in coupler for power monitoring to achieve miniaturization and light weight.