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4 August 2009 Design and simulation of a 650GHz 6x6 lens antenna array
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In this paper, we present the calculation of the impedance and beam pattern of a 6×6 twin-slot antenna array combined with an extended hemispherical silicon lens. The self and mutual impedance of the twin-slot antenna array are simulated by High Frequency Structure Simulator (HFSS), while its radiation pattern is computed by using ray-tracing inside the lens and electric and magnetic field integration on its surface. The distance between two neighboring antennas is set as 282μm (0.61λ0 at 650GHz) to avoid the overlap between the main-lobe beams of the antenna elements. With good imaging quality (i.e., with a Strehl ratio no less than 0.8), the minimum diameter of the lens is found equal to 23mm (~50λ0 at 650GHz).
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Liu, W. Miao, and S. C. Shi "Design and simulation of a 650GHz 6x6 lens antenna array", Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 73851B (4 August 2009);

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