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Researchers Set New Milestone for Wireless EV Charging
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In collaboration with Volkswagen Group, researchers at Oak
Ridge National Laboratory (ORNL) have demonstrated a 270-kW wireless EV
charging system. Researchers created a system using about 19 inches in diameter
polyphase electromagnetic coupling coils to deliver high power density. The
coil design uses rotating magnetic fields for efficient power delivery, and
when integrated into the vehicle's undercarriage, the system achieved over 95%
efficiency, providing a 50% charge in just 10 minutes with a 4.75-inch gap
between the coil and the ground.
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United Airlines To Use Starlink for Wi-Fi
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United Airlines is accelerating its rollout of Starlink
Wi-Fi. It aims to meet the growing demand for fast, reliable in-flight Wi-Fi,
with Starlink promising speeds that support streaming and gaming. The company
plans to offer this service free to MileagePlus members. It has also expanded
its implementation timeline, aiming to equip its entire two-cabin regional
fleet with Starlink by the end of 2025. The company aims to outfit its fleet of
nearly 1,000 planes with Starlink Wi-Fi.
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China Finds "Plasma Bubbles" With New Radar
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Chinese scientists have demonstrated a Low-Latitude,
Long-Range Ionospheric (LAIRD) radar that can detect plasma bubbles forming
over vast distances, including areas like the Egyptian pyramids and Midway
Islands. These disturbances in the Earth's upper atmosphere can disrupt GPS and
satellite communications. This unprecedented detection highlights China's
advancements in over-the-horizon radar technology, with implications for
scientific understanding and strategic applications. While LARID itself is not
designed for military surveillance, its underlying technology has been adapted
for military radars capable of detecting even stealth aircraft, showcasing the
potential of this technology in a broader context.
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Source: China News Agency
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Space Force Readies Space Jammer
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The U.S. Space Force will deploy a new ground-based system
to jam enemy satellite communications. This system, known as the Remote Modular
Terminal (RMT), will disrupt adversary surveillance and targeting capabilities,
particularly in the Indo-Pacific region. Developed by the Space Rapid
Capabilities Office, these small and modular jammers can be easily deployed and
operated remotely. They specifically aim to counter the growing threat of
Chinese surveillance satellites, which provide continuous coverage of the
region and can track even small objects. The RMT jammers will effectively
disrupt these satellites' ability to communicate and coordinate attacks,
enhancing the protection of U.S. and allied forces.
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Wi-Fi 8 Is Coming, and It's All About Reliability
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The next evolution of
wireless networking technology, Wi-Fi 8, represents a significant shift from
pure speed to enhanced reliability. While Wi-Fi 7 continues to establish itself
in the market, with Windows 11 recently adding support, industry experts are
already looking ahead to the future of wireless connectivity. The Wi-Fi
Alliance projects wireless device adoption to grow dramatically from 233
million devices in 2024 to 2.1 billion by 2028.
Emerging from the Ultra High-Reliability study group in
2022, Wi-Fi 8 (technically known as 802.11bn) remains in its conceptual stage.
As technical specifications continue to evolve, industry analysts' access
points won't reach the market until late 2028. This development acknowledges a
crucial reality: despite theoretical Wi-Fi speeds increasing forty-fold since
Wi-Fi 4, users often struggle to achieve advertised speeds due to interference
and physical obstacles.
Building upon Wi-Fi
7's advances, including doubled channel bandwidth, 4K QAM encoding, and
multi-link operation across multiple frequency bands, Wi-Fi 8 introduces
several innovative features. Coordinated Spatial Reuse helps multiple access
points adjust their signal strengths to minimize interference in mesh networks,
while Coordinated Beamforming directs signals more precisely to intended
receivers.
Dynamic Sub-channel Operation allows access points to assign
devices to specific sub-channels, potentially increasing throughput by 20 to 80
percent in heavy traffic conditions.
Industry experts view Wi-Fi 8's reliability improvements as
valuable for industrial and IoT applications where consistent connectivity is
crucial. However, users must upgrade access points and devices to benefit from
these advances. The timeline for widespread adoption remains uncertain, with
mainstream implementation likely occurring in the late 2020s, coinciding with
early 6G developments. In the interim, enterprise-class Wi-Fi 7 access point
adoption is expected to accelerate in 2025, with most mainstream device vendors
already supporting the standard.
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Anatech Electronics, Inc. focuses on the design and manufacturing of RF and microwave filters and related products. Anatech Microwave, Inc. focuses on supplying quality RF and microwave products.
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Join
us at the 4th annual UAV Technology USA conference in Arlington, VA on February
3 - 4, 2025.
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©Anatech Electronics, Inc.
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