TY - JOUR
T1 - Design of an Omnidirectional Circularly Polarized Antenna
AU - Ma, Yihan
AU - Li, Jianying
AU - Xu, Rui
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017
Y1 - 2017
N2 - In this letter, an omnidirectional circularly polarized (CP) antenna is proposed. This new antenna has a simple structure, which is composed of two dielectric substrates, four shorting pins, and a feeding pin. A CP radiation can be realized at the azimuth plane. This antenna can cover broad communication bands, such as GSM900, GSM1990, PCS, and UMTS bands. To validate the correctness of the simulation results, the omnidirectional CP antenna was fabricated and measured. With a profile of 0.066 λ0 (λ0 is the free-space wavelength at the lowest frequency during the operating bandwidth), the antenna has a-10-dB impedance bandwidth of 25.6% (range from 1.7 to 2.2 GHz) and a 3-dB axial-ratio bandwidth of 34.7% (range from 1.57 to 2.23 GHz). At the center frequency 1.95 GHz, the measured average axial ratio and right-hand circularly polarized gain are 2.69 dB and-1.12 dBic at the azimuthal plane, respectively.
AB - In this letter, an omnidirectional circularly polarized (CP) antenna is proposed. This new antenna has a simple structure, which is composed of two dielectric substrates, four shorting pins, and a feeding pin. A CP radiation can be realized at the azimuth plane. This antenna can cover broad communication bands, such as GSM900, GSM1990, PCS, and UMTS bands. To validate the correctness of the simulation results, the omnidirectional CP antenna was fabricated and measured. With a profile of 0.066 λ0 (λ0 is the free-space wavelength at the lowest frequency during the operating bandwidth), the antenna has a-10-dB impedance bandwidth of 25.6% (range from 1.7 to 2.2 GHz) and a 3-dB axial-ratio bandwidth of 34.7% (range from 1.57 to 2.23 GHz). At the center frequency 1.95 GHz, the measured average axial ratio and right-hand circularly polarized gain are 2.69 dB and-1.12 dBic at the azimuthal plane, respectively.
KW - Broadband antenna
KW - circular polarization (CP)
KW - omnidirectional antenna
UR - http://www.scopus.com/inward/record.url?scp=85024479758&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2017.2682958
DO - 10.1109/LAWP.2017.2682958
M3 - 文章
AN - SCOPUS:85024479758
SN - 1536-1225
VL - 16
SP - 226
EP - 229
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7879264
ER -