Enhancement of Angular Resolution of a Flat-Base Luneburg Lens Antenna by Using Correlation Method
作者： Xiang Gu , Sidharath Jain , Raj Mittra , Yunhua Zhang
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摘要: We propose a technique for enhancing the angular resolution of flat-base Luneburg lens antenna to enable it detect multiple targets with arbitrary scattering cross-sections that are located in proximity. The involves measuring electric field distribution on flat plane antenna, operating receive mode, at specified number positions, and correlating these distributions known derived from measurement generated by single target different look angles. show proposed approach can achieve enhanced than basis beam-width is capable distinguishing between two have an separation as small 1 ◦ 6.35λ aperture size, Signal- to-Noise Ratio (SNR) better 20 dB.
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