Keynote Speakers

Richard V. Snyder

President and founder of RS Microwave (Butler, NJ, USA)

Life Fellow IEEE

MTT-S President for 2011


“Filter Design for Modern (Communication and Other) Systems-2021 Update!”

With usable RF spectrum as one of the most expensive-and usually unavailable-natural resources, frequency subdivision techniques are critically important for protection of both the content producer and the consumer.  The use of filters to provide walls to ensure isolation of users from one another is common, but the design of such filters is difficult because of user proximity, both spectral and physical.  With spectrum more costly than hardware, the ordered metrics for filters have been performance, size, reliability, and lastly, selling cost. However, the current proliferation of new wireless technology and IoT potentially impacts the importance of each metric.  As well, the migration of data transmission to ever-higher frequencies, i.e., up to and including the THz region, has a major impact on manufacturing technology.  In this paper we will discuss topology and manufacturing technology for the most recent approaches to implementation of such filters.


President of RS Microwave author of 145 papers, 3 book chapters and holds 27 patents. Interests: E-M simulation, network synthesis, dielectric and suspended resonators, high power notch and bandpass filters and active filters.  BS, MS and PhD degrees from Loyola-Marymount, USC and Polytechnic Institute of New York University. Served the IEEE North Jersey Section as Chairman,14 year Chair of the MTT-AP chapter, IEEE North Jersey EDS and CAS chapters for 10 years.   He twice received the Region 1 award. January 1997: named a Fellow of the IEEE, now a Life Fellow.  January 2000: received the IEEE Millennium Medal.  General Chairman for IMS2003, in Philadelphia, Emeritus Chair for IMS2018 also in Philadelphia.  Elected to the MTT-S ADCOM in 2004.  Within the ADCOM, Chair of the TCC and Liaison to the EuMA. MTT-S Distinguished Lecturer: from 2007-2010, continuing in the Speakers Bureau. Three years as Associate Editor for the T-MTT, responsible for the filter papers submitted.   Member: American Physical Society, the AAAS and the New York Academy of Science.  MTT-S President for 2011. IMSEC Chair 2016-2019, N&A Chair at present.  Reviewer for IEEE-MTT and EMC publications. Reviewer for the EuMA IJMW.  Advises at the New Jersey Institute of Technology. Visiting Professor at the University of Leeds, in the U.K. Serves on TPC committees, as reviewer and/or Chair, for IMS, EUMW and other global conferences.  7 years as Chair of MTT-8 (now MTT-5 on Filters), continues in MTT-5/TPC work. Organizer of the annual IWS conference in China..

Renato Lombardi

Huawei Fellow
Chairman of ETSI ISG mWT (millimeter-WaveTransmission)
VP Microwave Product Line
Head of Italy Research Center


Millimeter-wave and sub-TeraHz technology and research trends on filters: An industry view”

High interest in millimeter-wave and sub-TeraHz bands has been rising in the recent years due to the enormous amount of under-utilized bandwidth that lies in this part of the electromagnetic spectrum. Technical advantages and large channel bandwidths make (sub)millimeter-wave suitable for the very high data rates required by enhanced Mobile BroadBand as well as for the new applications and services. In 5G mm-Wave front-ends, the use of filters is necessary to attenuate out-of-band signals such as a wideband noise, signal harmonics and unwanted harmonics: to suppress the unwanted interference signals, the antenna and the filter are usually designed individually and then cascaded by an extra transmission line. In addition to important technology directions like Substrate Integrated Waveguide (SIW) and the use of dual and multi-mode structures other important technical research trends are analyzed: mm-wave front-ends end-to-end cross layer design for architectures with an increasingly high level of integration and complexity and compact and low cost tunable structures.


Renato Lombardi is Head of Huawei Italy Research Center, Vice President of Huawei’s Microwave Product Line. In these roles, he oversees the research and development of microwave / millimeter-wave technologies for wireless communications and the implementation of innovative mobile broadband backhauling solutions all over the world. Renato Lombardi joined Huawei in 2008, founding the Huawei Research Center in Milan, Italy.   In 2011, he was awarded the title of “Fellow of Huawei”. Renato has more than 30 years of experience in the microwave and millimeter-wave industry. He previously led the Siemens Microwave Business and Product Management and then appointed Head of Research and Development.  In 2015 Renato Lombardi has been elected Chairman of the ETSI Industry Study Group mWT (millimeter-Wave Transmission). Renato Lombardi graduated from the Politecnico of Milano, the largest and most prestigious technical University in Italy with a Master’s Degree in Electronic Engineering.


Professor of Electrical Engineering
and Industrial Research Chair in Future Wireless Technologies


“ Substrate Integrated Waveguide Multiband Bandpass Filters and Multiplexers”

Multiband bandpass filters (BPFs) and multiplexers are indispensable in emerging wireless communication and sensing systems characterized by various key performance indexes (KPIs) in connection with design metrics such as cost-effectiveness, performance reliability, dimensional compactness, integration density, and power handling capability. Generally, they are developed for either the realization of filtering and isolating functions in transceivers or the implementation of multi-function and multi-standard systems. As a well-established MHz-through-THz technology, the substrate integrated waveguide (SIW) has provided an attractive and effective solution for the development of cost-effective, self-packaged, and high-quality multiband BPFs and multiplexers benefitting from its inherent merits of low-cost, low-loss, high-density integration, and high-power handling capability. In this talk, technical approaches, design methodologies, implementation techniques, and practical demonstrations of SIW multiband BPFs and multiplexers are reviewed and discussed in terms of design features and application requirements, including a variety of state-of-the-art schemes of implementation including shunting, multimode resonator, multimode-shunting hybrid, and splitting types. Development roadmap and prospective applications are also briefly described.


Dr. Ke Wu is Endowed Industrial Research Chair in Future Wireless Technologies and Professor of Electrical Engineering at École Polytechnique (University of Montreal), where he is the Director of the Poly-Grames Research Center. He was the Canada Research Chair in RF and millimeter-wave engineering and the Founding Director of the Center for Radiofrequency Electronics Research of Quebec. He has authored/co-authored over 1400 referred papers, and a number of books and book chapters and filed more than 50 patents. Dr. Wu was the general chair of the 2012 IEEE MTT-S International Microwave Symposium. He was the 2016 President of the IEEE Microwave Theory and Techniques Society (MTT-S). He also served as the inaugural North-American representative in the General Assembly of the European Microwave Association. He was the recipient of many awards and prizes including the 2019 IEEE MTT-S Microwave Prize and 2021 EIC Julian C. Smith Medal. He was an IEEE MTT-S Distinguished Microwave Lecturer. Dr. Ke Wu is a Fellow of the IEEE, Canadian Academy of Engineering and Royal Society of Canada.