Murata Manufacturing: L-shaped RF antenna module: CEATEC 2021
-5G smartphones are accelerating millimeter-wave support-
Murata Manufacturing Co., Ltd .:
Supports 5G millimeter-wave frequency band,
Radio waves can be radiated in two directions,
Announced the small phased array antenna module “LBKA series”.
“LBKA series”:
Mass production has already started.
It will be installed in smartphones scheduled to be released within 2021.
Millimeter Wave Challenges:
Millimeter waves
Because the frequency is high
Large propagation loss in space,
There is a problem that the communication distance becomes short.
What is beamforming?
To solve the millimeter wave problem, to correspond to the communicable angle range,
Beamforming has been proposed.
To extend the communication distance
Increase the number of antenna elements,
It uses an array antenna structure.
Beamforming Problems:
“Practically incorporating beamforming into smartphones” is extremely difficult.
For that reason,
Millimeter-wave compatible 5G smartphones have not yet been widely marketed.
Achieves high gain performance:
The LBKA series is Murata’s original resin multilayer board “Metro Circ” formed in an L shape.
Radio wave radiation in two directions:
On two boards with angles that differ by 90 degrees,
By arranging each array antenna,
One RF IC can radiate radio waves in two directions.
High frequency characteristics of Metro Circ:
It can be incorporated into the side surface of the upper part of the smartphone.
Stable transmission and reception of 5G millimeter wave communication.
Metro Circ has extremely good high frequency characteristics.
It is possible to achieve high antenna performance and high gain performance.
MONOist
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