Reactance Dependence of Radiation Efficiency and Impedance Matching of A Wrapped Loop Antenna
- Resource Type
- Conference
- Authors
- Iigusa, Kyoichi; Sawada, Hirokazu; Miura, Amane; Tsuji, Hiroyuki; Harada, Hiroshi
- Source
- 2023 17th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2023 17th European Conference on. :1-5 Mar, 2023
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Visualization
Impedance matching
Loop antennas
Conductivity
Numerical models
Impedance
Inductors
efficiency
impedance matching
loaded
loop antenna
reactance.
- Language
Instead of optimizing dimensions of an antenna, variable reactors are loaded on the antenna and the reactance values are optimized to achieve desired characteristics. The possibility of achieving both high radiation efficiency and good impedance matching is examined by visualizing the reactance regions where the characteristics are satisfied. Examination for a triple wrapped loop antenna shows that the reactance regions where impedance matching is good overlap the reactance regions where radiation efficiency is low when the antenna is electrically small. The influence of conductivity to the reactance regions is investigated with comparing the reactance regions with respect to input power and total radiated power.