TY - GEN
T1 - Ultra-Wideband, Miniature Microstrip Antenna with High Dielectric Constant based on Non-Foster Circuit Matching
AU - Zhang, Yuxuan
AU - Li, Donghao
AU - Tan, Huiwen
AU - Yao, Ruge
AU - Deng, Changjiang
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In this paper, a non-Foster circuit with a balun transformer is designed to match a high dielectric constant microstrip antenna. This circuit uses Linvill's floating negative impedance transformer, which generates negative impedance to offset the reactive component of the antenna and enhances the antenna's real resistance for improved matching. Simulation validation of the designed antenna and circuit is performed using HFSS and ADS. The microstrip antenna loaded with dielectric constant of 44 only has a relative bandwidth of 0.5%. With the help of non-Foster circuit matching, the relative bandwidth is increased to 55%, ranging from 440 MHz to 780 MHz, and a maximum gain enhancement of 11.7 dB is achieved. The overall volume of the microstrip antenna is 0.04λ×0.05λ×0.002λ, where λ is the wavelength at the lowest frequency.
AB - In this paper, a non-Foster circuit with a balun transformer is designed to match a high dielectric constant microstrip antenna. This circuit uses Linvill's floating negative impedance transformer, which generates negative impedance to offset the reactive component of the antenna and enhances the antenna's real resistance for improved matching. Simulation validation of the designed antenna and circuit is performed using HFSS and ADS. The microstrip antenna loaded with dielectric constant of 44 only has a relative bandwidth of 0.5%. With the help of non-Foster circuit matching, the relative bandwidth is increased to 55%, ranging from 440 MHz to 780 MHz, and a maximum gain enhancement of 11.7 dB is achieved. The overall volume of the microstrip antenna is 0.04λ×0.05λ×0.002λ, where λ is the wavelength at the lowest frequency.
KW - electrically small antenna
KW - high dielectric constant
KW - microstrip antenna
KW - non-Foster circuit
UR - http://www.scopus.com/inward/record.url?scp=85208951436&partnerID=8YFLogxK
U2 - 10.1109/IWS61525.2024.10713489
DO - 10.1109/IWS61525.2024.10713489
M3 - Conference contribution
AN - SCOPUS:85208951436
T3 - 2024 IEEE MTT-S International Wireless Symposium, IWS 2024 - Proceedings
BT - 2024 IEEE MTT-S International Wireless Symposium, IWS 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE MTT-S International Wireless Symposium, IWS 2024
Y2 - 16 May 2024 through 19 May 2024
ER -