Design of an X-band Antenna on Airborne Craft with Omnidirection Radiation
An octagonal prism conformal antenna array for x-band with vertically polarized omnidirectional radiation pattern is presented in this letter.The proposed antenna consists of a feeding network,radiation patches,parasitic patches,and dielectric layer.The 16 patches are placed on the outer surface of the octagonal cylinder and fed by a feeding network with uniform magnitude and phase.The patches are divided into upper and lower layers,each of which has eight units.Thus,the proposed antenna can obtain an omnidirectional radiation.To enhance the isolation between the elements,slots are introduced to decrease electromagnetic coupling between elements through the medium.By utilizing 16 conformal patches,the gain in the horizontal plane can be improved,especially for the range of θ = 800 to θ = 1000.The proposed antenna is designed and simulated.Simulation results reveal that the proposed antenna can provide an impedance bandwidth of 20%(7.16-8.76 GHz).Additionally,the minimum gain of the range which from θ = 800 to θ = 1000 is greater than 2.8 dBi over the frequency band.
conformal antenna octagonal prism parasitic patches omnidirectional pattern unmanned aerial vehicles
Yang-Dong Yan Yong-Chang Jiao Weijun Zhang
National Key Laboratory of Antennas and Microwave Technology Xidian University Xian,Shaanxi,710071,P.R.China
国际会议
杭州
英文
1-2
2018-12-03（万方平台首次上网日期，不代表论文的发表时间）