TY - GEN
T1 - Simulation and analysis of a kind of cylindrical conformal Yagi-Uda antenna
AU - Song, Lizhong
AU - Wu, Qun
AU - Fu, Shifeng
PY - 2008
Y1 - 2008
N2 - In order to save the space of aerocraft, the conformal antennas can be adopted, which also don't affect the dynamics performance. This paper discusses a kind of cylindrical conformal Yagi-Uda antenna and estimates its radiation characteristics. The proposed cylindrical conformal Yagi-Uda antenna is composed of five conformal dipoles, which is mounted on the surface of the cylindrical object in order to realize the radiation toward the axis of the cylinder. At the same time, two antennas are mounted on surface of the cylinder symmetrically to form the mono-pulse antenna. The diameter of the cylinder is 300 millimeters and the position and size of the cylindrical conformal antenna are determined according to the design method of traditional Yagi-Uda antennas approximately. The radiation performances of the proposed antenna are simulated for two cases, the one case is that the substrate of the dipoles is dielectric and the other case is that the dielectric substrate of the dipoles supported by metallic conductor. The calculation results reveal that the anticipative radiation directivity is obtained and the sum and difference patterns are formed. When the frequency is 600MHz, for the first case, the directivity of sum beam is about 9.8dBi and the bandwidth is about 158MHz for the voltage standing wave ratio which is less than 3, and for the second case, the directivity of sum beam is about 5.4dBi and the bandwidth is about 190MHz for the voltage standing wave ratio which is less than 3. The radiation performance of the first kind of antenna is better than the second kind of antenna, but the physical structure of the second kind of antenna is more firm. The simulation and calculation results in this paper can provide the technical reference for the research and development of practical cylindrical conformal antennas.
AB - In order to save the space of aerocraft, the conformal antennas can be adopted, which also don't affect the dynamics performance. This paper discusses a kind of cylindrical conformal Yagi-Uda antenna and estimates its radiation characteristics. The proposed cylindrical conformal Yagi-Uda antenna is composed of five conformal dipoles, which is mounted on the surface of the cylindrical object in order to realize the radiation toward the axis of the cylinder. At the same time, two antennas are mounted on surface of the cylinder symmetrically to form the mono-pulse antenna. The diameter of the cylinder is 300 millimeters and the position and size of the cylindrical conformal antenna are determined according to the design method of traditional Yagi-Uda antennas approximately. The radiation performances of the proposed antenna are simulated for two cases, the one case is that the substrate of the dipoles is dielectric and the other case is that the dielectric substrate of the dipoles supported by metallic conductor. The calculation results reveal that the anticipative radiation directivity is obtained and the sum and difference patterns are formed. When the frequency is 600MHz, for the first case, the directivity of sum beam is about 9.8dBi and the bandwidth is about 158MHz for the voltage standing wave ratio which is less than 3, and for the second case, the directivity of sum beam is about 5.4dBi and the bandwidth is about 190MHz for the voltage standing wave ratio which is less than 3. The radiation performance of the first kind of antenna is better than the second kind of antenna, but the physical structure of the second kind of antenna is more firm. The simulation and calculation results in this paper can provide the technical reference for the research and development of practical cylindrical conformal antennas.
UR - https://www.scopus.com/pages/publications/63549110375
U2 - 10.1109/ISAPE.2008.4735137
DO - 10.1109/ISAPE.2008.4735137
M3 - 会议稿件
AN - SCOPUS:63549110375
SN - 9781424421923
T3 - ISAPE 2008 - The 8th International Symposium on Antennas, Propagation and EM Theory Proceedings
SP - 50
EP - 53
BT - ISAPE 2008 - The 8th International Symposium on Antennas, Propagation and EM Theory Proceedings
T2 - 8th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2008
Y2 - 2 November 2008 through 5 November 2008
ER -