TY - JOUR
T1 - Increasing Radiation Efficiency Using Antenna Shape Optimization Approach
AU - Li, Ruiyang
AU - McNamara, Derek
AU - Wei, Gao
AU - Li, Jianzhou
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/3
Y1 - 2018/3
N2 - From the characteristic mode point of view of electrically small antennas, radiation efficiency normally decreases significantly if multiple modes are well excited. Among all these well-excited modes, the one with the lowest modal radiation efficiency determines how much actual radiation efficiency is guaranteed. Based on this idea, this letter proposes a method for improving antenna efficiency using shape optimization approach. The optimized shape can give rise to a high efficiency and an implied high gain after being excited using a single port whose location is easily selected by observing characteristic-mode current distributions.
AB - From the characteristic mode point of view of electrically small antennas, radiation efficiency normally decreases significantly if multiple modes are well excited. Among all these well-excited modes, the one with the lowest modal radiation efficiency determines how much actual radiation efficiency is guaranteed. Based on this idea, this letter proposes a method for improving antenna efficiency using shape optimization approach. The optimized shape can give rise to a high efficiency and an implied high gain after being excited using a single port whose location is easily selected by observing characteristic-mode current distributions.
KW - Antenna shape optimization
KW - electrically small antennas
KW - modal radiation efficiency
KW - radiation efficiency
UR - http://www.scopus.com/inward/record.url?scp=85041216240&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2018.2791585
DO - 10.1109/LAWP.2018.2791585
M3 - 文章
AN - SCOPUS:85041216240
SN - 1536-1225
VL - 17
SP - 393
EP - 396
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 3
ER -