Participation in the International Microwave Symposium 2017 (IMS-2017)

Participation in IMS-2017

During June 04–09, 2017, the International Microwave Symposium 2017 (IMS-2017) was held in Honolulu (Hawaii, USA).


The annual symposium organized by the Institute of Electrical and Electronics Engineers (IEEE) has been the world's primary conference in the field of microwaves for more than 50 years.

The paper entitled "Performance improvement of an electrically-small loop antenna matched with non-Foster negative inductance" by the ETU staff members Nikolay Ivanov, Viacheslav Turgaliev and Dmitry Kholodnyak was the only Russian contribution to this year symposium. The paper was presented by Dr. Dmitry Kholodnyak who is an Associate Professor of the Department of Microelectronics & Radio Engineering of ETU. The paper will be published soon in the symposium proceedings that are indexed by the Web of Science and Scopus databases.

In the scope of the IMS-2017 the workshop "Frontiers of Superconducting and Cryogenic Microwave Electronics" consisting of seven invited talks by the world' leading scientists in the field was organized by the IEEE Microwave Theory and Techniques Society (MTT-S) and its Technical Committee on Microwave Superconductivity and Cryogenics (MTT-18). As the Vice-Chair of the MTT-18 Technical Committee, Dr. Kholodnyak took part in the workshop as well as in the Committee Meeting. As the Vice-Chair of the IEEE Russia Northwest Section, Dr. Kholodnyak also took part in the MTT-S Chapter Chair Meeting. Both meetings were organized on the sidelines of the symposium.

Performance Improvement of an Electrically-Small Loop Antenna Matched with Non-Foster Negative Inductance

Nikolay Ivanov, Viacheslav Turgaliev, and Dmitry Kholodnyak
St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197376 Russia

Abstract — The paper presents results of a comparative study of a loop electrically-small antenna (ESA) matching with non-Foster negative inductances. Two matching networks which differ in connection of the non-Foster element to the antenna are considered. In one case the negative inductance is connected to the antenna input whereas another case corresponds to the antenna with the negative inductance connected in the middle of the loop, symmetrically with respect to antenna arms. Influence of the matching network architecture on the loop ESA performance is investigated. The second approach is shown beneficial with regard to providing of proper feeding of the loop antenna which results in a symmetrical radiation pattern.