一种隐形双频单极子水天线

An Invisible Dual-Band Monopole Water Antenna

本文提出了一种隐形单极子双频水天线。该天线由金属底板,Teflon底座,圆柱形水罐,锥形水罐和四个弧形水臂构成,天线的水罐和水臂通过3D打印得到,材料选用介电常数为2.75、损耗均为0.023D打印透明树脂材料,整个天线是透明的,因此具有光学隐形特性。使用Ansoft HFSS软件进行建模仿真,结果显示两个谐振频点分别是1.68 GHz和2.51 GHz,两个谐振点处的S11分别为-24.9 dB和-19.6 dB,两个工作频段对应的-10为410 MHz和260 MHz。除此之外,该天线在两个工作频段内都能实现全向辐射。

An invisible dual-band monopole water antenna is proposed in this paper.The antenna is composed of metal base plate,Teflon base,cylindrical water tank,conical water tank and four arc water arms.The water tank and water arm of the antenna are obtained by 3D printing.The material is 3D printing transparent resin material with dielectric constant of 2.75 and loss of 0.02.The whole antenna is transparent,so it has optical stealth characteristics.Ansoft HFSS software is used for modeling and simulation,the results show that the two resonant frequency points are 1.68GHz and 2.51GHz respectively,S11 at the two resonance points is-24.9dB and-19.6dB respectively,and the corresponding-10dB impedance bandwidth of the two operation frequency bands is 410MHz and 260MHz respectively.In addition,the antenna can achieve omnidirectional radiation in both operation frequency bands.