7 papers
Plasma-Enabled Wideband Matching of Electrically Small Antennas
Kushagra Singhal, Abbas Semnani
This paper presents a plasma-based approach for wideband impedance matching of electrically small antennas (ESAs). By exploiting the negative permittivity of a capacitively coupled…
Transiently Driven Reflectionless Resonant Microwave Plasmas via Virtual Critical Coupling
Muhammad Rizwan Akram, Abbas Semnani
Microwave plasma sources play a critical role in scientific research and a wide range of industrial, biomedical, and space applications. Resonant microwave structures have recently…
A Planar Huygens Antenna Utilizing Crossed Electric and Magnetic Dipoles
Muhammad Rizwan Akram, Abbas Semnani
The natural source of a magnetic dipole in antennas is typically an electrically small loop, which can be utilized in conjunction with an electric dipole to realize an electrically…
An Energy-Efficient Atmospheric Plasma Jet Line Enabled by a Dielectric Microwave Anapole Source
Muhammad Rizwan Akram, Abbas Semnani
Cold atmospheric pressure plasmas are crucial for applications in medicine, agriculture, and material processing, where their interaction with ambient air generates reactive oxygen…
Capacitive-Tuned SIW Evanescent-Mode Cavity for Resonant Microwave Plasma Jet
Kazi Sadman Kabir, Abbas Semnani
This paper introduces a novel atmospheric pressure and frequency-tunable microwave plasma jet utilizing evanescent-mode cavity resonator technology. The design uses a substrate-int…
A High-Power Microwave Limiter Using A Self-Actuated Plasma-Based EIT Topology
Muhammad Rizwan Akram, Abbas Semnani
This paper presents a novel metamaterial topology incorporating gas discharge tubes for high-power microwave protection. The design features two split ring resonators positioned si…
Non-Radiating Resonances: Anapoles Enabling Highly-Efficient Plasma Jets within Dielectric Structures
Muhammad Rizwan Akram, Abbas Semnani
Plasma plays a pivotal role in numerous applications spanning the fields of medicine, industry, agriculture, and space exploration. When plasma interacts with air, it initiates uni…