A 24-to-30GHz 256-Element Dual-Polarized 5G Phased Array with Fast Beam-Switching Support for >30,000 Beams
A 24-to-30GHz 256-Element Dual-Polarized 5G Phased Array with Fast Beam-Switching Support for >30,000 Beams
复制标题
24 至 30GHz 256 元件双偏振 5G 相控阵，支持超过 30,000 个波束的快速波束切换
DOI：
--
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
A. Valdes
中科院分区：
文献类型：
--
作者：
B. Sadhu;A. Paidimarri;Wooram Lee;M. Yeck;Caglar Ozdag;Yujiro Tojo;J. Plouchart;X. Gu;Y. Uemichi;S. Chakraborty;Y. Yamaguchi;N. Guan;A. Valdes
随着毫米波(mm-wave)5G技术的采用范围扩大，它面临着越来越多的技术挑战。其中包括将28 GHz频段扩展至24.25至29.5 GHz(N257、N258和N261 5G NR频段)，以及通过使用更多天线单元要求5G基站覆盖更远距离的需求。虽然已经报道了支持多达256个元素的毫米波5G相控阵[1，5-8]，但它们面临着两个关键挑战：(1)它们产生的波束很窄，需要数千个波束覆盖扫描范围内的所有角度，但它们的波束表通常支持<；300波束[1]，[2]；(2)它们增加的功耗可能会导致严重的热挑战，特别是在不能使用空气冷却的情况下。
As millimeter-wave (mm-wave) 5G technology adoption expands, it faces growing technical challenges. Among these are the extension of the 28GHz band, to 24.25 to 29.5GHz (n257, n258 and n261 5G NR bands) and the demand for 5G base stations to cover large distances by using a larger number of antenna elements. While mm-wave 5G phased arrays supporting up to 256 elements have been reported [1,5-8], they suffer from two key challenges: (1) their created beams are narrow, requiring thousands of beams to cover all angles within the scan range, yet their beam tables typically support <300 beams [1], [2]; and (2) their increased power consumption may lead to severe thermal challenges, especially in situations where air-cooling cannot be used.