3-D Printed Bandpass Filters with Split-Ring Resonators

Additive manufacturing let researchers make square split-ring resonators (SRRs) of finite height with significantly stronger coupling than thin printed structures. The printed SSRs produce filters with wider operational bandwidths in the same footprint, or the equivalent performance in a smaller envelope.
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Call for Papers: INMMIC, Cardiff, April 2020

Submit abstracts from 4 Nov. to 12 Jan. for the International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC, Cardiff, U.K., 16-17 Apr. 2020 - Cardiff, UK). Papers are welcome covering modeling, measurement, noise characterization, optimization, power amps and related topics.
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Scanning Microwave Microscopy of a Live Cell

The first quantitative scanning microwave microscopy (SMM) of a live cell in physiological buffer overcame the challenge of probing soft matter in liquid by using multiscale finite-element full-wave EM simulation. The researchers measured cell permittivity at its nucleus at (32± 6)-j(20 ± 4).
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IEEE Learning Network: Special MTT-S Offer

Access IEEE Learning Content at your fingertips with ILN. MTT-S members get 50% off the following courses by entering ILNMTT at checkout: Enterprise Blockchain for the Internet of Things, Intelligent Control of Connected and Automated Vehicles, Values by Design in the Algorithmic Era, The Digitized Grid, & Transparency and Accountability for Robots and Artificial Intelligence Systems.
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Carrier Aggregation Tx Front End for 5-GHz 802.11ax

Carrier aggregation is key to boosting data rates of emerging 802.11ax systems. To overcome voltage-controlled oscillator (VCO) pulling and RF-channel crosstalk, researchers developed a transmitter front end that supports two-carrier aggregation without high on-chip isolation.
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Transactions Special Issue on Broadband Power Amps

Submit papers by 15 Dec. for an IEEE Transactions on Microwave Theory and Techniques special July 2020 issue on "Broadband RF and Millimeter-wave Power Amplifiers." Send papers on the most recent research and development covering broadband (including sub-6GHz) and millimeter-wave power amplifiers.
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Integrated 50-280-GHz Frequency Comb Detector

A fully integrated coherent detector, with an on-chip broadband frequency comb reference, facilitates broadband sensing and spectroscopy at mmWave and subTHz frequencies. The low-cost, 34-mW CMOS device detects any arbitrary spectrum from 50 GHz to 280 GHz with 2-Hz resolution.
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IMS2020 Technical Papers Due by 4 Dec.

4 Dec. is the deadline for submitting technical papers for the 2020 International Microwave Symposium (IMS2020, Los Angeles, CA, 20-25 June), centerpiece of Microwave Week, which also embraces the RFIC Symposium and the ARFTG measurement conference.
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A New Approach for Desert Reservoir Exploration: Terahertz Prospecting

An accurate, nondestructive, and economic oil-prospecting technique uses THz spectroscopy to detect trace organic matter migrating from underground petroleum reservoirs to surface sands. The method also detected long-chain alkanes, nitro-organics and aromatic compounds, confirmed by thermogravimetric and other standard analyses.
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Coming Up: Semiconductor ICs, Optoelectronics, Asia-Pacific

Upcoming MTT-S-sponsored meetings include: BiCMOS and Compound Semiconductor Integrated Circuits (BCICTS, Nashville, TN, 3-6 Nov.); Microwaves and Optoelectronics (IMOC, Aveiro, Portugal, 10-14 Nov.); Asia-Pacific Microwaves (APMC, Singapore, 10-13 Dec.); International Microwaves and RF (IMARC, Mumbai, 13-15 Dec.), and more.
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