Theory and simulation of 3 mm conical horn focusing lens antennas
| Autor: | Luo Xiangang, Liu Shuzhang, Zhao Qing, Zheng Ling, Tang Jianming |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Physics
business.industry Aperture Lens antennas Astrophysics::Instrumentation and Methods for Astrophysics Conical surface Atomic and Molecular Physics and Optics law.invention Lens (optics) Wavelength Optics law Horn (acoustic) Focal length Electrical and Electronic Engineering Antenna (radio) business |
| Zdroj: | High Power Laser and Particle Beams. 24:436-440 |
| ISSN: | 1001-4322 |
| DOI: | 10.3788/hplpb20122402.0436 |
| Popis: | The design of focusing lens based on traditional ray path method is introduced. The performances of 3 mm focusing lens antennas are simulated by using electromagnetic simulation software. Antennas with different spread angles (12,20,30) of horn are simulated. Its concluded that the actual focal length increases and approaches to the value designed gradually when the spread angle of horn increases, and the ray path method can be applied when the electromagnetic wavelength is short enough compared with the horn aperture. The E-field on the focal planes of the three antennas is presented and the focal spot of the antenna with 30 spread angle is smaller than twice the electromagnetic wavelength. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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