椭球共形阵列增益与等效面积关系研究
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摘要
为了解各种共形阵列天线增益在空间的分布情况,从而确定共形阵列的形状。以椭球共形阵列天线为例,给出了一种使用等效投影面积来估算共形阵列天线增益分布的方法。考虑天线单元作用范围影响,推导了各个来波方向等效投影面积的数学表达式。在推导出天线单元具体位置的基础上,根据波束合成原理,通过仿真得到了各个来波方向上的增益分布。对比可见,阵列增益的仿真结果与等效面积的数值计算结果曲线形状吻合,可以直接利用等效面积公式调节椭球长短轴比来改变增益。
The spatial distribution of the gain for conformal array antenna is critical to determine the shape of the conformal array antenna.Taking the ellipsoidal conformal array antenna as an example,we introduced a method that equivalent projection area is used to estimate the conformal array antenna gain distribution. Considering the influence of antenna element affecting scope,we deduced the mathematical expressions of the equivalent projection area from each direction. According to the principle of beam-forming,the gain distribution in each direction is figured out through simulation on the basis of the locations of antenna elements as calculated.It can be seen that,the simulation result curve of the gain is similar to the mathematical calculation result of equivalent area.So,the axial ratio in the equivalent area formula can be regulated to influence the gain.
The spatial distribution of the gain for conformal array antenna is critical to determine the shape of the conformal array antenna.Taking the ellipsoidal conformal array antenna as an example,we introduced a method that equivalent projection area is used to estimate the conformal array antenna gain distribution. Considering the influence of antenna element affecting scope,we deduced the mathematical expressions of the equivalent projection area from each direction. According to the principle of beam-forming,the gain distribution in each direction is figured out through simulation on the basis of the locations of antenna elements as calculated.It can be seen that,the simulation result curve of the gain is similar to the mathematical calculation result of equivalent area.So,the axial ratio in the equivalent area formula can be regulated to influence the gain.
引文
[1]吴海洲,王鹏毅,郭肃丽.全空域相控阵测控系统波束形成分析[J].无线电工程,2011,41(11):13-15.
[2]ROBERT J,MAILLOU X.Phased Array Antenna Handbook[M].Boston:Artech House,2005:75-89.
[3]WU Jie,CHENG YU-jian,FAN Yong.A Wideband HighGain High-Efficiency Hybrid Integrated Plate Array Antenna for V-Band[J].IEEE Transactions on Antennas and Propagation,2015,63(4):1 225-1 233.
[4]梁剑锋,胡国庆,韩国栋.一种全空域覆盖卫星通信多面相控阵天线[J].电子世界,2013(23):58-59.
[5]康德地,吴斌,王绍山.箭载共形相控阵天线波控系统设计分析[J].无线电工程,2010,40(7):32-39.
[6]刘铁林,张成,王一波.圆柱体上均匀圆阵的阵增益分析[J].火力与指挥控制,2013,38(8):9-12.
[7]ABOUL-SEOUD A K,HAFEZ A-D S,HAMED A M,et al.A Conformal Conical Phased Array Antenna for Modern Radars[C]∥Aerospace Conference,2014 IEEE,2014:1-7.
[8]FRANEK O,PEDERSEN G F.Spherical Arrays for Wireless Channel Characterization and Emulation[C]∥Antennas and Propagation in Wireless Communications(APWC),2014 IEEE-APS Topical Conference,2014:480-483.
[9]郑广平,裘祖干,陆章基.线性代数与解析几何[M].上海:复旦大学出版社,2004:93-99.
[10]耿虎军,郭肃丽,王鹏毅,等.相控阵多目标测控系统中的坐标转换[J].飞行器测控学报,2010,29(6):24-28.
[2]ROBERT J,MAILLOU X.Phased Array Antenna Handbook[M].Boston:Artech House,2005:75-89.
[3]WU Jie,CHENG YU-jian,FAN Yong.A Wideband HighGain High-Efficiency Hybrid Integrated Plate Array Antenna for V-Band[J].IEEE Transactions on Antennas and Propagation,2015,63(4):1 225-1 233.
[4]梁剑锋,胡国庆,韩国栋.一种全空域覆盖卫星通信多面相控阵天线[J].电子世界,2013(23):58-59.
[5]康德地,吴斌,王绍山.箭载共形相控阵天线波控系统设计分析[J].无线电工程,2010,40(7):32-39.
[6]刘铁林,张成,王一波.圆柱体上均匀圆阵的阵增益分析[J].火力与指挥控制,2013,38(8):9-12.
[7]ABOUL-SEOUD A K,HAFEZ A-D S,HAMED A M,et al.A Conformal Conical Phased Array Antenna for Modern Radars[C]∥Aerospace Conference,2014 IEEE,2014:1-7.
[8]FRANEK O,PEDERSEN G F.Spherical Arrays for Wireless Channel Characterization and Emulation[C]∥Antennas and Propagation in Wireless Communications(APWC),2014 IEEE-APS Topical Conference,2014:480-483.
[9]郑广平,裘祖干,陆章基.线性代数与解析几何[M].上海:复旦大学出版社,2004:93-99.
[10]耿虎军,郭肃丽,王鹏毅,等.相控阵多目标测控系统中的坐标转换[J].飞行器测控学报,2010,29(6):24-28.