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Anatech Electronics June 2024 Newsletter - RF Cafe


Quantum computer - RF CafeSam Benzacar, of Anatech Electronics, an RF and microwave filter company, has published his June 2024 newsletter that, along with timely news items, features his short op-ed entitled "The Vital Role of Microwave Technology in Quantum Systems." In it, he discusses the use of microwave components in quantum computers. I have noticed in the photos of the quantum computers, suspended by fine cables giving them a golden chandelier look, that there seems to be lots of small diameter coaxial cable and connectors plugging into what appears to be standard microwave-like packages. Turns out, according to Sam, that those are coaxial cables and components like mixers, amplifiers, directional couplers, circulators and isolators, and of prime interest to him, filters. I still have not informed myself as fully on quantum computers as I should have by now. It all still seems like black magic, as does aka quantum teleportation and entanglement (or "spooky action at a distance" as Albert Einstein referred to it).

A Word from Sam Benzacar - The Vital Role of Microwave Technology in Quantum Systems Security Risk

Anatech Electronics June 2024 Newsletter (Sam Benzacar) - RF CafeBy Sam Benzacar

We've all heard about quantum systems, which are hard to miss, as stories about "quantum" appear daily in the media. But one thing we've found odd is that any mention of microwave technology in these systems is entirely absent, even though without it, many types of quantum systems couldn't work. In fact, microwave devices and quantum systems range from mixers, power amplifiers, attenuators and isolators, directional couplers, several types of antennas, cavities and resonators, waveguides, coaxial cables, and connectors, and finally - filters.

As a manufacturer of RF and microwave filters, we decided to investigate why these devices are used in quantum systems. In superconducting quantum circuits that typically operate at frequencies up to a few gigahertz, microwave filters control and manipulate the electromagnetic environment around the qubits, reducing noise and unwanted interactions. In quantum communications, filters remove unwanted interference, ensuring that only the desired signal reaches the quantum detectors or receivers. In trapped-ion quantum computers, where RF and microwave signals control and manipulate the internal states of trapped ions (that function as qubits), filters make sure control signals have the correct frequency and are not affected by noise, which would render them inoperable.

Vital Role of Microwave Technology in Quantum Systems Security Risk - RF CafeAnother application is quantum sensing, which includes quantum magnetometers or quantum radar. RF and microwave filters enhance the signal-to-noise ratio and improve the devices' sensitivity. In addition, quantum hybrid systems that combine several types of quantum devices, such as superconducting circuits and spin qubits, use microwave filters to create a compatible interface between the different components.

In short, filters isolate these systems from environmental noise, ensure that control signals have the desired frequencies, and enable efficient coupling between different components of the quantum setup. The use of RF and microwave filters is not just crucial, it's the key to maintaining the coherence and fidelity of quantum operations in these systems.

Quantum systems are hostile operating environments because most of them must function at extraordinarily low temperatures, which means that microwave components used in these areas must be able to withstand them. However, not every type of quantum system is identical, nor is the temperature within them the same from top to bottom. For example, in trapped-ion quantum computers the ions themselves don't require low-temperature operation. Nitrogen-vacancy (NV) centers in diamond can operate at room temperature, making them attractive for certain applications, such as quantum sensing.

So, in short, microwave technology is not only used in quantum systems but also an essential technology that allows them to work. With any luck, the media may someday become up to speed and recognize its contribution.

Flying 5G Base Station in Japan - RF CafeNext: Flying 5G Base Station in Japan 

Aerial telecommunications base stations, developed by Airbus subsidiary AALTO and a consortium led by NTT Docomo, are expected to be operational above Japan in about two years. The consortium, which includes Space Compass, Mizuho Bank, and the Development Bank of Japan, will invest $100 million in AALTO. The Zephyr High Altitude Platform Station (HAPS) manufactures solar-powered, fixed-wing drones designed for operation in the stratosphere. The technology behind Zephyr has been under development for over two decades, evolving from a flight endurance of approximately six hours at an altitude of 9,000 meters to maintaining operations at 20,000 meters for up to 90 days. 

Starlink Plans Direct-to Smartphone Access in the Fall - RF CafeStarlink Plans Direct-to Smartphone Access in the Fall 

SpaceX is set to launch its Starlink system for phones this fall, contingent on receiving approval from the FCC. The system aims to transmit internet data directly to unmodified smartphones on the ground, providing a valuable service to consumers in areas without cellular coverage. Initially, SpaceX plans to offer text, voice, and web browsing through this supplemental coverage network, with the potential for future advancements to enable more comprehensive coverage and additional features. SpaceX has requested that the FCC relax the limit on frequencies for cellular satellites, arguing that the current restrictive limit would force satellite operators to either diminish network coverage and capacity or significantly weaken their signals to comply with the regulations. 

5G FWA Fixed Wireless Has Best Customer Satisfaction - RF CafeJ.D. Power: 5G FWA Fixed Wireless Has Best Customer Satisfaction 

According to a recent study by J.D. Power, 5G-based fixed wireless access (FWA) boasts the highest customer satisfaction among five internet technologies. It surpassed fiber, cable broadband, DSL, and 4G LTE-based fixed wireless in the rankings. Satisfaction scores for 5G FWA varied between 775 and 825 on a 1,000-point scale, depending on the service provider. The primary factor contributing to the high satisfaction with 5G FWA was its cost-effectiveness. Other technologies that received relatively high satisfaction scores included fiber broadband, with scores ranging from 750 to 760, and 4G LTE-based fixed wireless, with scores between 725 and 775. DSL ranked lowest with scores just above 700. 

Air Force to Reduce EW Update Time - RF CafeAir Force to Reduce EW Update Time 

The Air Force says it can swiftly update its electronic warfare systems with new battlefield data within hours, according to Col. Josh Koslov, commander of the 350th Spectrum Warfare Wing. Koslov says that more than half of the 70 EW systems his team manages across the Air Force can now be updated in under 3 hours. "Data is the weapon that will allow this to happen, and data processing is the way to do that," Koslov noted. To achieve this, data will have to be integrated from various sources, such as Army units on the ground, naval ships in the Pacific, and airborne platforms, with the data then analyzed to identify new threats. 

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

Check out Our Filter Products

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.


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




Posted April 25, 2024

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