Murata Manufacturing Co., Ltd. has developed the first parasitic element coupler that enables both high efficiency and miniaturization of antennas that support Wi-Fi 6E and Wi-Fi 7, the next-generation wireless LAN standard. By adding this product to an antenna configured in an electronic device such as a laptop, good wireless communication in accordance with the Wi-Fi 6E 7 standard can be achieved. Mass production has already begun, and the equipment equipped with this product is scheduled to be launched on the market by the end of 2023.
In order to realize the Wi-Fi 6E and Wi-Fi 7 standards that are suitable for Wi-FiTM high-speed communication, and to improve the speed and quality of communication, it is necessary to equip electronic devices with multiple antennas.
Wi-Fi 6E is the latest wireless LAN standard Wi-Fi 6 (IEEE 802.)11ax) after the expansion of the available channels. In addition to the previously available 2In addition to the 4GHz and 5GHz bands, the 6GHz band has also been extended. More connections can be made, enabling a comfortable Wi-Fi environment with fewer interferences. wi-fi 7(ieee 802.11BE) is a next-generation wireless LAN standard that is scheduled to be put into practical use in the second half of 2024.
On the other hand, as processors become more efficient, heat sinks and batteries become larger, and the antenna installation space tends to shrink, so smaller antennas are needed. The technical problem encountered in this case was that the smaller size of the antenna would lead to a decrease in its efficiency in a wide frequency band, so it was necessary to achieve technology that could achieve both miniaturization and high performance.
In response to this, Murata has developed this product using its in-house developed ceramic multilayer technology, which can simultaneously reduce the size of antennas and increase the efficiency of a wide frequency band.
A parasitic element coupler is a small (1. ) that places 2 coils close together0x0.5x0.35 mm) device, similar in structure to a transformer. The strong coupling between the coils enhances the coupling between the feed antenna and the parasitic elements, resulting in a small antenna with high efficiency over a wide frequency band.
Key features: *Improves line efficiency after broadbanding.
By having strong electromagnetic coupling between the parasitic element and the feed antenna, the antenna resonance of the parasitic element can be increased, and the antenna efficiency can be improved.
Antenna miniaturization.
If the antenna is simply miniaturized, the electromagnetic field coupling between the parasitic element and the ground becomes stronger, and as a result, the coupling with the feed antenna becomes relatively weak. By using this product, the coupling between the feed antenna and the parasitic element can be strengthened, and good characteristics can be obtained even when using a small antenna.
Suppresses performance degradation due to long antenna cables.
When antennas are used on a wide frequency band, there is an impedance mismatch that can lead to deterioration in the performance of wireless communications. In addition, when an impedance mismatched antenna is connected to a communication circuit, the impedance mismatch can be further exacerbated by long cables, resulting in higher than expected insertion loss and a significant deterioration in the performance of wireless communications. By using this product, antenna matching can be improved and performance degradation of wireless communication can be suppressed even when long cables are used.
Main specifications: Product name: Parasitic element coupling device
Dimensions (L W T): 10mm×0.5mm×0.35mm
Models: LXPC15AHA1-001 (for Middle High Band), LXPC15AHR1-002 (Mirror for Middle High Band), LXPC15ALA1-003 (for Low Band), LXPC15ALR1-005 (Mirror for Low Band), LXPC15AUA1-008 (for Sub6 Band), LXPC15AUR1-009(Mirror type for Sub6 Band), LXPC15AWA1-012 (for Wi-Fi 6E), LXPC15AWR1-013 (Mirror type for Wi-Fi 6E).
Note: The mirror type is a product that interchanges the coupling polarity of the two coils in the device.
Insertion loss: 035db(typ.When using LXPC15AW1-012 and LXPC15AWR1-013 at 6GHz.
The main applications of this product include PCs, tablet terminals, smartphones, virtual reality (VR) augmented reality (AR) related devices, game consoles, Wi-Fi routers, and other consumer devices that utilize Wi-Fi communication and cellular communication based on the Wi-Fi 6E 7 standard.
In the future, Murata will continue to develop products that meet market needs such as wireless LAN broadbanding, and contribute to the development of wireless devices.
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