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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Anatech Electronics July 2019 Newsletter

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Anatech Electronics Header: July 2019 Newsletter


Anatech Electronics, an RF and microwave filter company, has introduced a new line of suspended stripline and waveguide type RF filters. Sam Benzacar wrote as part of Anatech's July newsletter about the need for and emergence of fully integrated millimeter-wave transmitters and receivers for the 5G smartphone market. It is worth noting that the phrase "5G smartphone market" is not redundant since 5G is intended to go well beyond just phones. Vehicle-to-vehicle communications and factory automation are just two of the many other applications planned and currently being implemented. Also included are a few news headlines related to Anatech's core business of designing and manufacturing filters.

A Word from Sam Benzacar

Anatech Electronics July 2019 Newsletter (Sam Benzacar) - RF Cafe

Device For the Future : Part One

By Sam Benzacar

In my conversations with customers, members of the industry, and in the course of traversing the Web I sometimes come across a technological development that really stands out. One of the most impressive has immense potential for 5G and is indicative of what will be required to effectively integrate millimeter-wave bands in a smartphone. The product I'm referring to is the QTM052 RF system on chip (RFSoC) revealed by Qualcomm back in 2017 and has since revised and reduced in size by 25%.

Although its largest target market is end-user devices and small cell base stations, Verizon is using it in the company's 28-GHz fixed wireless access systems, and AT&T has committed to using it as well. As you can see from the photo, the device is very small, measuring 18 x 5-mm, but inside are a complete 5G NR transceiver including front-end components and RF power amplifier, power management IC, and an entire 24-element phased-array antenna. Equally amazing is that it operates between 26.5 to 29.5 GHz, 27.5 to 28.35, and anywhere within 37 and 40 GHz as well, with total available bandwidth of 800 MHz. The module supports up to 2x2 MIMO with dual polarization in both the downlink and the uplink.

Device For the Future : Part One - RF CafePut four of these in the corners of a smartphone and when combined with the company's Snapdragon X50 modem, they can perform beamforming, steering, and tracking, and route signals to each module based on signal and environmental conditions. It helps solve the most significant issue with using millimeter-wave frequencies in a hand-held mobile device: propagating signals in and out when it's in your hand, moving around at various angles, or in your pocket or pocketbook.

The patch and dipole antennas provide spherical coverage in each polarization and beam steering of +/-45 deg. The power amplifier can deliver 10 to 15 dBm output power at 28 GHz, although it typically operates backed off to 6 to 8 dBm. An EIRP up to 35 dBm can be achieved thanks to the 5 dBi gain of a half-wave patch antenna, but the 2x2 array provides another 6 dB of summation gain and 6 dB beamforming gain. Using only one polarization, 3 dB gain can be achieved for a total of 20 dB. One module has typical DC power dissipation with four transmit channels in operation of 380 mW or less.

This device is probably not the only one because others may be lurking within the confines of other semiconductor companies and phone manufacturers (Huawei comes to mind). But so far it appears only Qualcomm has publicly announced such a device with a reasonable amount of information.

I am very sure that in the advent of 5G many other devices will be popping out of the woodwork; an interesting journey. Stay tuned.

Wireless Traffic, Investment Growing Fast - RF CafeWireless Traffic, Investment Growing Fast

Americans used an amazing 28% more mobile data in 2018 than the year before, 28.58 trillion megabytes, according to the CTIA's 2019 Annual Wireless Industry Survey. There were 21.5 million more devices (for a total of 421.7 million) connected to mobile networks last year. Half were smartphones but data-only products such as watches, IoT devices, and connected cars represent the major growth areas. In addition, wireless carriers spent $27.4 billion on infrastructure and related CAPEX, $1.8 billion more than in 2017. There are now about 394,000 5G-capable cell sites in operation.


TV White Spaces: Theaters Cry Foul

TV White Spaces: Theaters Cry Foul - RF CafeAs Microsoft pushes its proposal at the FCC for using the so-called TV white spaces to expand Internet access to rural areas, various music industry organizations and microphone manufacturers such as Shure are cautioning that use of these frequencies could interfere with wireless microphones. Microsoft's plan covers only licensed wireless mics, not unlicensed ones of which there are huge number. While the organizations all say they strongly in support of Microsoft's overall goal, they want assurance that if the plan is implemented, all wireless mics will be protected from interference.

Air Force Develops Microwave Drone Killer

Air Force Develops Microwave Drone Killer - RF CafeResearchers from the Air Force Research Laboratory at Kirtland Air Force Base have created a microwave weapon capable of taking out drones called the Tactical High-Power Microwave Operational Responder (THOR). It reportedly costs about $10 million apiece, can down up to 50 drones simultaneously. The platform is mobile and can be deployed in less than 3 hours by connecting its three parts, after which it can be operated remotely from a laptop, positioning its antenna quickly over a 360-deg. range. The Air Force recently stated that multiple-drone attacks are a priority for its directed-energy weapons system development efforts, which includes both microwave laser systems.

Ford Showed Its C-V2X - RF CafeFord Showed Its C-V2X

Ford showed off its cellular vehicle-to-everything (C-V2X) technology at the recent meeting of the Intelligent Transportation Society of America, including a roadside module that lets vehicles communicate with pedestrians and bicyclists. Called an interpreter, the device uses cellular, Bluetooth and other short-range solutions to notify pedestrians of oncoming vehicles via their smartphones. The company also demonstrated a system that intelligently makes decisions concerning right-of-way at intersections by establishes a “discussion” between vehicles.

Getting Ready for 5G:

Anatech Electronics introduce New Ka band 30.5 GHz Waveguide Band Pass Filter. Featuring a center frequency of 30.5 GHz, a bandwidth of 1000 MHz, an Insertion Loss 1 dB Max, and a Power Handling is 20 watts.

Ka band 30.5GHz Waveguide Band Pass Filter - RF Cafe

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 July 10, 2019

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