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December 2021

Laser-Enhanced Direct Printed W-Band MMIC Assembly

The first laser-enhanced, direct-print additive-manufacturing (LE-DPAM) chip carrier assembly for W-band monolithic microwave integrated circuit (MMICs) fuses layers of acrylonitrile butadiene styrene (ABS) to form substrate layers and microdispenses DuPont CB028 conductive paste for transmission lines and on-chip interconnects. These processes combined with picosecond-pulsed laser micromachining at two wavelengths (1064 nm in the infrared and 355 nm in the ultraviolet) to create features as small as 5 μm for printed layers with a high 6:1 aspect ratio. and to improve the effective conductivity of the printed traces.


Mini-Circuits new ZVE-453+ series of connectorized amplifiers covers the entire 18 to 45 GHz band with output power ranging from +28 to +31 dBm, supporting a wide range if high-frequency test applications. These models operate on a single 10 to 15V supply and offer a variety of features for industry-leading ruggedness and ease of use.


Robust 4.9 GHz Wake-Up Receiver

A new highly integrated, event-driven wake-up receiver is robust with respect to power supply, temperature, and interference, consuming 184 nW at room temperature while achieving <-78.3-dBm sensitivity using a custom-designed antenna at 4.9 GHz or <-72.3-dBm sensitivity when matched to a 50-Ω source at 5.3 GHz. The device adapts to temperatures from -30 °C to 70 °C and voltages from 1.2 to 1.5 V. 
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Radio & Wireless Week,16-19 Jan.

The 2022 IEEE Radio & Wireless Week (RWW) convenes 16-19 January in Las Vegas, NV. The meeting encompasses the Radio and Wireless Symposium (RWS), RF/Microwave Power Amplifiers (PAWR), Silicon Monolithic Integrated Circuits (SiRF), Wireless Sensors and Sensor Networks (WISNet), Space Hardware and Radio (SHaRC), Microwave Measurement (ARFTG). The IoT Summit on Sustainable Sensor Systems will meet 10-15 January ahead of RWW.
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Better Multipactor Prediction for Aerospace

Predicting and preventing the multipactor effect (a runaway electron avalanche in RF components operating in a vacuum) is a priority in designing components for space operation. Until now, designers have relied the empirical "20-gap-crossing," but two new methods do a better job of catching potential multipactor problems with multicarrier signals: the pulsed method and the envelope sweep method.
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CFP: T-MTT Special Microwave Filter Issue

Submit papers by 20 February 2022 for a September Transactions on Microwave Theory and Techniques (T-MTT) Mini-Special Issue devoted the 2021 International Microwave Filter Workshop (IMFW2021, run in Perugia, Italy, this past November). When the special mini-issue call-for-papers is available, it will be posted with the other special calls on the T-MTT home page.
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Join Scott Blum, RF Applications Engineer with Wolfspeed as he discusses how to design areas of a pulsed amplifier circuit to achieve a high degree of pulse fidelity.


Recent releases bring enhanced user experience with refurbished graphic interface and numerous new options and upgrades. Unique software features provide a wide engineering application range spanning: antenna design/placement, RCS/scattering, IoT, biomedical, etc.


The R&S®Spectrum Rider FPH offers German engineered performance and an ergonomic design. With excellent RF performance, it can capture weak signals with a DANL as low as –163 dBm.


Microwave Quantum-Defined Millivolt Source

Researchers at the U.S. National Institute of Standards and Technology have demonstrated a tenfold increase in the amplitude of microwave-frequency waveforms generated by a quantum-defined superconducting voltage source, with an open-circuit signal of 17.56 mV rms at 1.005 GHz. The voltage source is an RF Josephson arbitrary waveform synthesizer (RF-JAWS) that utilizes a circuit that is cooled to 4 K and is composed of an array of 4500 Josephson junctions.
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18 MTT-S Members Named IEEE Fellows

IEEE has name 18 active MTT-S members as IEEE Fellows. The 13 new Fellows evaluated by MTT-S are: Dominique Baillargeat, James Buckwalter, Wenquan Che, Alessandra Costanzo, Apostolos Georgiadis, Jeffrey Hesler, Slawomir Koziel,
Moriyasu Miyazaki, Anh-vu Pham, Christopher Rodenbeck, Daniel Van Der Weide, Christian Waldschmidt, and Anding Zhu. In addition, five new Fellows were evaluated by other IEEE societies: Hongsheng Chen, Tommaso Isernia, Mikko Valkama, Xiuyin Zhang, and Jiang Zhu.
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Reconfigurable Liquid-Metal SIW Phase Shifter

For the first time, a substrate integrated waveguide (SIW) phase shifter can be reconfigured using liquid metal. The device operates at 10 GHz, is reciprocal and bidirectional, and exhibits low (<2.3 dB) insertion loss. It incorporates a series of holes that can be filled or emptied of liquid metal on the fly, dynamically establishing walls along the waveguide's E-plane or H-plane at will.
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Webinar: Quantum Computing for Microwaves

Join Keysight Technologies research fellow David E. Root at 12 p.m. EST on 14 December for this month's Second-Tuesday MTT-S webinar, "What Every Microwave Engineer Should Know About Quantum Computing." Dr. Root, an IEEE Fellow, will introduce the basic principles, technical challenges, and potential of practical quantum computation, emphasizing the fundamental role microwave engineering will play.
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Waveform Engineered Sequential Load Modulated Balanced Amplifier

A novel waveform engineered sequential load modulated balanced amplifier (W-SLMBA) uses a continuous Class-F⁻¹ control amplifier (CA) to manipulate the impedance trajectory of the balanced amplifier (BA). The selected CA can trigger a unique impedance load-modulation mechanism, in which the CA's varying second-harmonic load reactance shapes the BA's fundamental impedance.
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Coming Up: Radio & Wireless Week, European Microwaves, WAMICON

Upcoming MTT-S sponsored conferences include: Radio & Wireless Week (RWW incorporating RWS, PAWR, SIRF, WISNET, SHARC, & IoT Summit, Las Vegas, NV, 16-19 Jan. 2022), European Microwave Week (EuMIC, EuMC, EuRAD, London, 12-18 Feb.), Wireless & Microwave Technology (WAMICON, Clearwater Beach, FL, 27-28 Apr.), Microwave Biomedical (IMBioC, Suzhou, China, 16-18 May), and more.
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Have Something to Share With MTT-S Colleagues?

Members of the IEEE Microwave Theory and Techniques Society who want to share information about events, conferences, contests, publications, or other topics of interest to MTT-S colleagues are invited to e-mail Newsletter Working Group chair Roberto Gómez García ( and newsletter editor Douglas McCormick (


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