Range-Angle-Dependent Beamforming by Frequency Diverse Array Antenna

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Abstract
This paper proposes a range-angle-dependent beamforming for frequency diverse array (FDA) antenna systems. Unlike conventional phased-array antenna, the FDA antenna employs a small amount of frequency increment compared to the carrier frequency across the array elements. The use of frequency increment generates an antenna pattern that is a function of range, time and angle. The range-angle-dependent beamforming allows the FDA antenna to transmit energy over a desired range or angle. This provides a potential to suppress range-dependent clutter and interference which is not accessible for conventional phased-array systems. In this paper, a FDA radar signal model is formed and the range-angle-dependent beamforming performance is examined by analyzing the transmit/receive beampatterns and the output signal-to-interference-plus-noise ratio (SINR) performance. Extensive simulation examples and results are provided.
Funding Information
  • National Natural Science Foundation of China (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)
  • Fundamental Research Funds for the Central Universities (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)
  • First Grade of 49th Chinese Post-Doctoral Research Funds (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)
  • Chinese Academy of Sciences (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)
  • Institute of Remote Sensing Applications (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)
  • Open Funds of the State Laboratory of Remote Sensing Science (41101317, ZYGX2010J001, 20110490143, OFSLRSS201011)

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