设计了一种高效率可变极化低剖面的相控阵天线,阵元采用双圆极化平面偶极子天线实现辐射,并通过控制各单元左旋与右旋端口相位,实现任意方向线极化辐射。经仿真验证,工作频率在11.5~14.5 GHz频段范围内,阵面为16×16阵元在零指向增...设计了一种高效率可变极化低剖面的相控阵天线,阵元采用双圆极化平面偶极子天线实现辐射,并通过控制各单元左旋与右旋端口相位,实现任意方向线极化辐射。经仿真验证,工作频率在11.5~14.5 GHz频段范围内,阵面为16×16阵元在零指向增益大于29 d B,扫描±45°范围内扫描无盲点,并保持良好的圆极化特性以合成准确的任意方向线极化。该天线具有剖面低、成本低、质量轻等优点,可广泛应用于动中通系统中。展开更多
The beam scan with variable linear polarization directions of antenna arrays using MM/C transmit-receive (T/R) modules is explored. It is shown that the beam scan and the polarizations of electric fields can be contro...The beam scan with variable linear polarization directions of antenna arrays using MM/C transmit-receive (T/R) modules is explored. It is shown that the beam scan and the polarizations of electric fields can be controlled simultaneously if the forms of module arrangement are chosen properly and the amplitudes and the phases of array excitation are determined by the method presented in this article. Moreover, the calculations of the amplitudes and the phases of array excitation are simplified greatly while using the bounded conditions properly, and the desired beam sweep rate is achieved.展开更多
文摘设计了一种高效率可变极化低剖面的相控阵天线,阵元采用双圆极化平面偶极子天线实现辐射,并通过控制各单元左旋与右旋端口相位,实现任意方向线极化辐射。经仿真验证,工作频率在11.5~14.5 GHz频段范围内,阵面为16×16阵元在零指向增益大于29 d B,扫描±45°范围内扫描无盲点,并保持良好的圆极化特性以合成准确的任意方向线极化。该天线具有剖面低、成本低、质量轻等优点,可广泛应用于动中通系统中。
文摘The beam scan with variable linear polarization directions of antenna arrays using MM/C transmit-receive (T/R) modules is explored. It is shown that the beam scan and the polarizations of electric fields can be controlled simultaneously if the forms of module arrangement are chosen properly and the amplitudes and the phases of array excitation are determined by the method presented in this article. Moreover, the calculations of the amplitudes and the phases of array excitation are simplified greatly while using the bounded conditions properly, and the desired beam sweep rate is achieved.
