村田制作所：L 型射频天线模块：CEATEC 2021
-5G智能手机加速毫米波支持-
村田制作所：
支持5G毫米波频段，
无线电波可以向两个方向辐射，
发布小型相控阵天线模块“LBKA系列”。
“LBKA系列”：
批量生产已经开始。
它将安装在计划于 2021 年发布的智能手机中。
毫米波挑战：
毫米波
因为频率高
空间传播损耗大，
存在通信距离变短的问题。
什么是波束成形？
解决毫米波问题，对应可通信角度范围，
已经提出了波束成形。
延长通讯距离
增加天线元件的数量，
它采用阵列天线结构。
波束成形问题：
“将波束成形技术融入智能手机中”是极其困难的。
是因为，
兼容毫米波的 5G 智能手机尚未广泛上市。
实现高增益性能：
LBKA系列是村田原创的L字型树脂多层板“Metro Circ”。
两个方向的无线电波辐射：
在角度相差 90 度的两块板上，
通过排列每个阵列天线，
一个 RF IC 可以向两个方向发射无线电波。
Metro Circ的高频特性：
它可以集成到智能手机上部的侧面。
5G毫米波通信的稳定传输和接收。
Metro Circ 具有极好的高频特性。
可以实现高天线性能和高增益性能。
单声道
https://monoist.atmarkit.co.jp/mn/articles/2110/18/news041.html
Antenna array integrated module for mmWave 5G from Murata saves space and cuts costs
Murata has launched a space-saving antenna array integrated module
for mmWave 5G designed specifically to meet the demanding requirements of the smartphone, Internet of Things (IoT) and local/private 5G markets.
In the past,
the efficiency of millimeter waves has been compromised by obstacles, an issue that has presented significant challenges for manufacturers looking to incorporate mmWave functionality into their communications equipment.
A major disadvantage of existing products on the market
is that to get around this problem, they require several radio-frequency integrated circuits (RFICs) to be fitted in order to emit radio waves in multiple directions.
However,
Murata’s solution – based around the MetroCirc™ mmWave antenna module board with its superior high-frequency performance –
has a unique L-shape design that delivers a secure mmWave wireless communication environment in two directions using just a single RFIC.
This means
the module makes it possible to maintain the minimal footprint required for the development of
smaller,slimmer smartphones,
IoT devices and customer sets.
A key advantage of the L-shape design is that it
not only helps to cut costs by reducing the number of modules required
but it also offers far greater coverage using the same number of modules.
Product News | Murata Manufacturing Co., Ltd.
https://www.murata.com/en-global/news/connectivitymodule/mmwave-rf/2021/1013