Abstract
Lens antenna is a good substitute for the Cassegrain antenna at millimeter-wave frequencies, especially at W-band. On one hand, the antenna design, which is bulky and heavy at low frequencies, becomes compact and light-weighted at W-band. On the other hand, without the blockage caused by the sub-reflector and the feed horns which are unavoidable in a Cassegrain antenna, the lens antennas show better radiation characteristics. In this paper, several lens antennas fed by metal horns are analyzed using a full-wave method-finite element method based on the weak form of the Helmholtz equation (WF-FEM). Numerical results show that the lens antennas presented have low side lobe level (SLL), and good sum and difference performances.
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Wang, Z.X., Dou, W.B. Full-Wave Analysis of Monopulse Dielectric Lens Antennas at W-band. J Infrared Milli Terahz Waves 31, 151–161 (2010). https://doi.org/10.1007/s10762-009-9573-8
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DOI: https://doi.org/10.1007/s10762-009-9573-8