Abstract It has been shown that Frequency Diverse Arrays (FDA) exhibit a range-angle dependent beam steering feature by employing a uniform frequency increment across the array elements. However, this beam pattern generates maxima at multiple range values, possibly leading to loss of signal-to-interference-plus-noise ratio when the interferences are located at any of the maxima. Herein, we prove that the beam pattern of FDA is range-periodic and propose the basic criteria for the FDA configuration to decouple the range and angle. In an illuminated space, a single-maximum beam pattern can be obtained by configuring the frequency increment between the elements. Specific examples have been discussed herein, and the simulation results verify the proposed theory.
Fund: The National Natural Science Foundation of China (61571344), Shanghai Academy of Spaceflight Technology (SAST2015064, SAST2015071)
Cite this article:
Xiang Zhe,Chen Baixiao. Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array(in English)[J]. JOURNAL OF RADARS, 2018, 7(2): 212-219.
2018, Vol. 7 
