Planar Leaky-Wave Antenna Design on Thick Substrate by Radiating Surface Waves Using Strip Rings
(2024) 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) — Location: Perth, Australia
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Planar_Leaky-Wave_Antenna_Design_on_Thick_Substrate_by_Radiating_Surface_Waves_Using_Strip_Rings.pdf
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- Abstract
- This paper presents a comprehensive analysis of a 75 GHz dipole-slot antenna on ultra-low loss Silicon (Si) combined with metallic strip rings to allow surface wave (SW) conversion into leaky-wave (LW) radiation. First, the influence of the die dimensions on the radiation pattern (RP) is studied on a simple dipole-slot antenna. Then, the design of surrounding metallic ring strips is performed. Through both measurements and simulations, an improvement of the antenna gain and a reduction of uncontrolled radiation from the chip edges are demonstrated. The results show an enhancement of the antenna gain of more than 5 dB by adding the rings, to reach more than 7.9 dBi for each test structure, and an impedance bandwidth of 10 GHz. This study provides valuable insights on the design of metallic strip rings for SW conversion into LW for planar antennas solutions at mm-wave frequencies on thick substrates.
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Citations
Delait, L., Z. Tian, Rack, M., Courte, Q., A. Rennings, Craeye, C., Raskin, J.-P., Lederer, D., & Ma, S. (2024). Planar Leaky-Wave Antenna Design on Thick Substrate by Radiating Surface Waves Using Strip Rings. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Perth, Australia. https://hdl.handle.net/2078.5/235801