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Anatech Electronics July 2024 Newsletter - RF Cafe

 

Sam Benzacar, of Anatech Electronics, an RF and microwave filter company, has published his January 2025 newsletter that, along with timely news items, features his short op-ed entitled "Wi-Fi 8 Is Coming, and It's All About Reliability," which discusses the major improvement in data speed and reliability over all previous versions. The Wi-Fi Alliance predicts a 10x growth in wireless connectivity from now until 2028. Automatic arbitration between Wi-Fi zones for power levels, sub-channel assignments, and traffic handling, is intended to deal with an increasingly dense operational environment. Wi-Fi operations are nowadays conducted in both fixed and mobile scenarios where signal coexistence requirements are continually changing not just from dynamic multipath conditions due to reflections, but from constantly changing Wi-Fi bases station locations. Incredibly sophisticated mathematics are required to implement the schemes.

A Word from Sam Benzacar - Wi-Fi 8 Is Coming, and It's All About Reliability

Anatech Electronics January 2025 Newsletter (Sam Benzacar) - RF CafeBy Sam Benzacar

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.

Wi-Fi 8 Is Coming, and It's All About Reliability - RF CafeBuilding 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.


Researchers Set New Milestone for Wireless EV Charging - RF CafeResearchers Set New Milestone for Wireless EV Charging 

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. 


Space Force Readies Space Jammer - RF CafeSpace Force Readies Space Jammer 

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. 


United Airlines To Use Starlink for Wi-Fi - RF CafeUnited Airlines To Use Starlink for Wi-Fi 

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. 


China Finds "Plasma Bubbles" With New Radar - RF CafeChina Finds "Plasma Bubbles" With New Radar 

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. 


Anatech Electronics Introduces a New Line of Suspended Stripline and Waveguide Type RF Filters

Anatech Electronics Waveguide Filters - RF Cafe

LINKS: Waveguide Bandstop & Waveguide Bandpass 

Anatech Electronics Suspended Stripline Filters - RF Cafe

LINKS:  Suspended Stripline Highpass  & Suspended Stripline Lowpass


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Anatech Electronics Cavity Band Pass Filters       Anatech Electronics LC Bandpass Filters - RF Cafe       Anatech Electronics Cavity Bandpass/Notch Filters - RF Cafe

    Cavity Band Pass Filters             LC Band Pass Filters           Cavity Bandstop/Notch Filter


About Anatech Electronics

Anatech Electronics, Inc. (AEI) specializes in the design and manufacture of standard and custom RF and microwave filters and other passive components and subsystems employed in commercial, industrial, and aerospace and applications. Products are available from an operating frequency range of 10 kHz to 30 GHz and include cavity, ceramic, crystal, LC, and surface acoustic wave (SAW), as well as power combiners/dividers, duplexers and diplexers, directional couplers, terminations, attenuators, circulators, EMI filters, and lightning arrestors. The company's custom products and capabilities are available at www.anatechelectronics.com.


Contact:

Anatech Electronics, Inc.
70 Outwater Lane
Garfield, NJ 07026
(973) 772-4242

sales@anatechelectronics.com

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