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Narrowband IoT Coverage with Low Orbit Satellites | This article describes the modeling of a SATCOM link, specifically the use case of using a satellite overlay to extend service continuity to IoT devices in a poorly covered rural area. | |
New for 2025! MTT-S Volunteer Spotlight | |
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Holger Maune
Otto-von-Guericke-Universität Magdeburg
RWW 2025 General Chair
How many years have you been an MTT-S member?
I have been an MTT-S member since the first day as an IEEE member starting back 18 years ago.
How did you start volunteering with MTT-S?
Volunteering for MTT-S comes with different activities. I started organizing workshops at multiple IMS conferences. At an RWW some years back, I was acting as judge for the student paper contest. As this was a great experience for me, I took over responsibility for the paper contest at RWW and developed it to the format we have today. After several years as student paper contest chair, I was asked to take more responsibilities for RWW, what I happily did, culminating in this year’s role as general chair.
What has been your favorite volunteer activity in MTT-S?
There is not a single role I would like to highlight. I love to support students and young professionals in their personal development. That was also the starting point for my “MTT-S career”. I want to continue my activities there and help to develop the MTT society to be attractive for your people.
What are you looking forward to at RWW 2025?
I am looking forward to many great discussions with colleagues and friends. RWW was and hopefully will ever be the conference to meet colleagues and friends for intensive discussions covering all topics not only technical ones. I am also eager to see what the elevator pitches at this year’s paper competition will highlight.
What advice would you give to someone who is interested in becoming a volunteer with MTT-S?
Don’t hesitate to start your involvement. Volunteering with MTT-S is working with great persons and brought many great moments to my career.
| Do you have a friend or colleague who is doing great things as an MTT-S Volunteer? Nominate them to be featured in the e-newsletter volunteer spotlight! Click the button below: | |
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Novel Probe Array Design for Fast and Cost-Effective Array Antenna Verification in Production Environments | Steerable antenna arrays are an increasingly vital part of modern communications and radar applications, but their production in large quantities poses challenges for manufacturers. These antenna arrays are constructed from multiple single-element antennas, which are connected to one or multiple beamforming monolithic microwave integrated circuits. The number of antenna elements of electronically steerable antennas (ESAs) can range from 2 × 2 up to 128 × 128 elements. | | | |
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A Technique for Optimal On-Wafer Device Spacing at Millimeter-Wave Frequencies | A technique to determine efficient placement of nearby structures to the device-under-test (DUT) based on the DUT’s impedance is presented. This technique involves sweeping both the impedance of the DUT and the spatial location of the nearby structure to create a map where the structure can be placed that would simultaneously minimize coupling to the DUT as well as the space between devices. The simulations were validated up to 110 GHz using GaN HEMT measurements with and without a nearby line. | | | |
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Calibration of Distributed MIMO Radar Systems | This paper addresses the problem of estimating the MIMO system transfer function coefficients of a linear time-invariant (LTI) MIMO system. The problem is shown to be non-trivial due to its inherent Kronecker structure and is shown to be of the form of a class of unsolved problems. Three approaches for estimating the transfer function are derived and shown to achieve good performance in simulation. | | | |
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Microwave-Based Detection of Heavy Metals in Water Using an Interdigital Electrode-Integrated Complementary Split Ring Resonator Sensor | This letter presents a highly sensitive microwave sensor for detecting four heavy metals (Ag+, Pb2+, Cd2+, and Cr3+) in water. The sensor incorporates an interdigital electrode integrated complementary split ring resonator (IECSRR) to enhance electric field confinement and achieve higher sensitivity. Performance of the device has been examined for various aqueous metal solutions by assessing the changes in the stopband center frequency from scattering parameters and the limit of detection (LoD). | | | |
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Microwave Photonic Frequency Measurement and Time–Frequency Analysis: Unlocking Bandwidths Over Hundreds of GHz With a 10-Nanosecond Temporal Resolution | A microwave photonic frequency measurement and time–frequency analysis method is shown, which is implemented by dispersion-based frequency-to-time mapping (FTTM) and assisted by a specially designed V-shape linearly frequency-modulated (LFM) signal and a duty-cycle-enabling technique. Using a total dispersion of -6817 ps/nm and a V-shape LFM signal with a bandwidth of 31.6 GHz and a duty cycle of 1/4, the authors achieve an ambiguity-free analysis bandwidth of 252.8 GHz, a corresponding temporal resolution of 13.75 ns and a frequency resolution of 1.1 GHz. | | | |
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The 3rd edition of the IEEE Microwave and Propagation Conference (MAPCON) was held on 9-13 December 2024 in Hotel Novotel HICC, Hyderabad, India and organized by IEEE Hyderabad Section MTT-S/AP-S/EMC-S Joint Chapter. Started in 2022, MAPCON has seen steady growth in participation over the last three years and recorded a delegate count of more than 1200 this year. The key organizers of the conference include Sandeep Chaturvedi & Yogesh Verma (chairs), K.P. Ray & Shobha Sundar Ram (TPC), and Dr. Nookala Srinivasa Rao & Prashant Mishra (finance chairs) under the guidance of the MAPCON Executive committee led by Goutam Chattopadhyay and Yahia Antar.
MAPCON 2024 attracted 740 paper submissions, of which 495 were accepted for oral and poster presentations at an acceptance rate of ~63%. The conference provided a full day of pre-conference tutorials on trending topics like Reconfigurable Intelligent Surfaces, Quantum Computing, EMI/EMC, Power Amplifier Design, Non-Destructive Imaging, and Antenna Measurements. More than 300 participants attended the workshop sessions. The conference was inaugurated by Dr. B.V.H.S Narayana Murthy, a top defense research scientist and Vice-chancellor of the Defense Institute of Advanced Technologies, a deemed university in India. The inaugural session was graced by MTT-S President Maurizio Bozzi, AP-S President Branislav Notaros, MTT-S President-Elect and MAPCON EC Chair Goutam Chattopadhyay, former AP-S President and MAPCON AP-S co-chair Yahia Antar. The conference featured plenary talks by Maurizio Bozzi, Branislav Notaros, Ram Narayan, Satish Sharma, Ahmed Kishk, and a multitude of keynote talks on the latest topics in the RF/microwave and antenna domain.
In summary, this edition of MAPCON has fueled great interest in the RF/Microwave and Antenna communities in India and across the globe with a further push to its growing trajectory and impact on the ecosystem by addressing the interests of all stakeholders and intended audiences. The future editions of MAPCON (2025 Kochi, 2026 Nagpur, 2027 Delhi, and 2028 Pune) will take this journey further and will contribute to the objectives of membership growth and furthering technology for humanity.
| IEEE Journal of Microwaves is extremely pleased to announce the release of our long-awaited special issue on Microwaves in Climate Change. The articles cover a wide range of topics involving microwave techniques and instrumentation as they relate to issues and techniques in climate science. These include energy use and distribution, atmospheric chemistry, meteorology, water and geological resource management, pollution monitoring, power transfer, microwave heating, plasma fusion, energy reuse and efficiency, waste management, and animal migration tracking. We hope that this special issue will bring additional scientists into the microwave publishing community and inspire more microwave engineers to seek out geophysicists, Earth scientists, environmentalists, climatologists, geochemical engineers, energy and power specialists, resource managers, and other technical experts who might benefit from the instrumentation, knowledge, and skillsets within our community. Please share these articles with your colleagues. We are hoping to develop a special print release of all the articles in the special issue for distribution in early 2025. If you like what you see, let our Editorial Board know by writing to our special issue editor (Peter H. Siegel, phs@caltech.edu) with your thoughts and comments. | |
IEEE TMTT: Call for a new editor-in-chief | |
The IEEE Microwave Theory and Technology Society (MTT-S) invites applicants for the position of Editor-in-Chief (EiC) for the IEEE Transactions on Microwave Theory and Technology (T-MTT) for a three–year term starting on January 1, 2026.
Application deadline is February 28, 2025.
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The 2025 IEEE Radio & Wireless Week (RWW2025) will be held during the week of January 19, 2025 in San Juan, Puerto Rico, USA. RWW consists of five related conferences focusing on the intersection between wireless communication theory, systems, circuits, and devices technologies. RWW2025 is co-located with the 104th ARFTG Microwave Measurement Symposium. This creates a unique forum for engineers to discuss various technologies for the state-of-art wireless systems and their end-use applications. | |
The LAMC 2025 Organizational Committee welcomes you to the fifth IEEE MTT-S Latin America Microwave Conference (LAMC- 2025) in San Juan,Puerto Rico. With the goal to promote research, development, and innovation in the latest microwave technologies, LAMC 2025 will be a high-quality event with paper and poster presentations, keynote lectures, special sessions, and an exhibition show with the participation of top microwave companies and universities. |
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The integration of communication and radio sensing in the same spectrum is likely to be one of the key features in B5G wireless systems. A joint design of both services will improve the efficiency of spectrum usage, and will offer the opportunity of providing radar as a service, just like communications today. Recent advances in mmWave communications, massive MIMO and machine learning, among others, are making this vision possible, but many technical challenges still remain, from hardware up to the application layer. Therefore, Joint Communications and Sensing (JC&S) is the subject of rapidly growing interest in the research community, and this symposium will focus on the different system and implementation aspects of this promising new approach, bringing together academic and industrial experts from both the radar and communications research communities. | | |
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The 16th German Microwave Conference (GeMiC) 2025 will be held in Dresden, Germany, March 17-19. GeMiC 2025 will cover a range of technical areas such as Semiconductor Technology and Electronics, Systems and Sensors, Passives, EM, and Antennas; and 6G technologies and applications.
GeMiC 2025 will host several special sessions with a strong focus on THz technology and THz communications. There will also be workshops on forward-looking topics such as Green ICT for the Tactile Internet. This conference is a unique opportunity to engage with experts and network with peers from industry, research institutes and academia.
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Editor-in-Chief
Dr. Hjalti Sigmarsson
University of Oklahoma, USA
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