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oe1(光电查) - 科学论文

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?? 中文（中国） ▾

  • [IEEE 2019 IEEE International Symposium on Phased Array System & Technology (PAST) - Waltham, MA, USA (2019.10.15-2019.10.18)] 2019 IEEE International Symposium on Phased Array System & Technology (PAST) - Periodic Substrate Integrated Waveguide Based Leaky Wave Antenna for Backward Endfire Radiation

    摘要： A new substrate integrated waveguide (SIW) based leaky wave antenna (LWA) is presented in this paper for backward endfire (-900) radiation. Measured gain at backward endfire is 12.1 dBi. To verify the simulated results, a prototype is fabricated. The proposed antenna is well suited for applications including unmanned aerial vehicles (UAVs), modern RADAR systems, directional communication systems, modern missiles and self-driving cars etc.

    关键词： Endfire,Leaky Wave Antenna,Backfire,Broadside,Substrate Integrated Waveguide,Gain

    更新于2025-09-23 15:19:57

  • Metasurface Enabled Advanced Short Backfire Antenna

    摘要： Metasurfaces with independently tunable anisotropic dispersion characteristics have been designed to significantly improve the radiation efficiency of a short backfire antenna (SBFA) when placed within the antenna cavity walls. This advanced short backfire antenna (A-SBFA) features a hexagonal aperture, which typically results in much lower aperture efficiency and increased cross polarization. However, the addition of metasurfaces leads to a higher aperture efficiency than is achievable with a conventional circular SBFA. Through careful design and optimization of the metasurface dispersion, the A-SBFA achieves high aperture efficiency across two discrete frequency bands while maintaining a relatively low height and weight. A detailed design and optimization methodology is presented here, along with simulation studies that explore the design space and provide insight into how the antenna performance is affected as the metasurface parameters are adjusted. The A-SBFA is shown to be a promising candidate for future satellite-based antenna arrays due to its high aperture efficiency, hexagonal cavity, low weight, and low profile.

    关键词： short backfire antenna,Metasurface,optimization

    更新于2025-09-16 10:30:52