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对称振子天线的HFSS仿真
摘要:对称振子天线不仅是一种结构简单的天线,而且是一经典的,迄今为止使用最广泛的天线。每臂长度为四分之一波长、全长为二分之一波长的振子,称为半波对称振子,单个半波对称振子可简单地独立使用或用作抛物面天线的馈源,也可采用多个半波对称振子组成的天线阵。其上电流呈驻波分布,如果两线末端张开,辐射将逐渐增强。本文用hfss仿真了一个简单的对称振子天线,得出了反射系数曲线和远场增益图,熟悉了hfss仿真软件的使用,学****了对称振子天线的原理。
关键词:对称振子,hfss, 反射系数,远场增益
Abstract: Dipole antenna is not only an antenna of simple structure, but also is the most widely used antenna till now. The length of every arm is 1/2 wavelength and the whole length equal to a wavelength is defined dipole antenna. Single half-wave dipole antenna can be simply independently used or worked as feed of parabolic antenna, several half-wave dipole antennas can also constitute antenna array. The current on it distribute as a standing wave. If two ends of the lines open, the radiation will gradually increased. This article simulated a simple dipole antenna with hfss, reflection coefficient curve and far field gain graph are given, had a basic knowledge of hfss software, and the theory of dipole antenna is studied.
Key words: Dipole, hfss, reflection coefficient, far field gain
引言
两部分长度相等而中心断开并接以馈电的导线,可用作发射和接收天线,这样构成的天线叫做对称天线。因为天线有时也称为振子,所以对称天线又叫对称振子,或偶极天线。总长度为半个波长的对称振子,叫做半波振子,也叫做半波偶极天线。对称振子天线属于平衡天线,而亏点同轴电缆属于不平衡传输线,若将天线与同轴电缆直接相连,则同轴线的外皮有高频电流流过,由于同轴线的屏蔽层外皮也参与了天线的辐射,这样会影响天线的辐射方向图,因此,在天线和馈电同轴之间加入平衡不平衡转换器,把同轴外皮的高频电流抑制掉,将其截断。对称振子天线
是最基本的单元天线,用得也最广泛,很多复杂天线是由它组成的。作为对hfss软件的熟悉使用训练,因此选择了对称振子天线的仿真。
仿真过程及模型建立
本次仿真是利用hf
摘要:对称振子天线不仅是一种结构简单的天线,而且是一经典的,迄今为止使用最广泛的天线。每臂长度为四分之一波长、全长为二分之一波长的振子,称为半波对称振子,单个半波对称振子可简单地独立使用或用作抛物面天线的馈源,也可采用多个半波对称振子组成的天线阵。其上电流呈驻波分布,如果两线末端张开,辐射将逐渐增强。本文用hfss仿真了一个简单的对称振子天线,得出了反射系数曲线和远场增益图,熟悉了hfss仿真软件的使用,学****了对称振子天线的原理。
关键词:对称振子,hfss, 反射系数,远场增益
Abstract: Dipole antenna is not only an antenna of simple structure, but also is the most widely used antenna till now. The length of every arm is 1/2 wavelength and the whole length equal to a wavelength is defined dipole antenna. Single half-wave dipole antenna can be simply independently used or worked as feed of parabolic antenna, several half-wave dipole antennas can also constitute antenna array. The current on it distribute as a standing wave. If two ends of the lines open, the radiation will gradually increased. This article simulated a simple dipole antenna with hfss, reflection coefficient curve and far field gain graph are given, had a basic knowledge of hfss software, and the theory of dipole antenna is studied.
Key words: Dipole, hfss, reflection coefficient, far field gain
引言
两部分长度相等而中心断开并接以馈电的导线,可用作发射和接收天线,这样构成的天线叫做对称天线。因为天线有时也称为振子,所以对称天线又叫对称振子,或偶极天线。总长度为半个波长的对称振子,叫做半波振子,也叫做半波偶极天线。对称振子天线属于平衡天线,而亏点同轴电缆属于不平衡传输线,若将天线与同轴电缆直接相连,则同轴线的外皮有高频电流流过,由于同轴线的屏蔽层外皮也参与了天线的辐射,这样会影响天线的辐射方向图,因此,在天线和馈电同轴之间加入平衡不平衡转换器,把同轴外皮的高频电流抑制掉,将其截断。对称振子天线
是最基本的单元天线,用得也最广泛,很多复杂天线是由它组成的。作为对hfss软件的熟悉使用训练,因此选择了对称振子天线的仿真。
仿真过程及模型建立
本次仿真是利用hf
对称振子天线的hfss仿真 来自淘豆网www.taodocs.com转载请标明出处.