Research Article
Effect of Surface Error Distribution and Aberration on Electromagnetic Performance of a Reflector Antenna
Table 3
The nine Zernike terms and aberrations.
| | New terms | Zernike terms | Polynomials | Characteristic |
| | | 1 | Piston | | | | -tilt | | | | -tilt | | | | Defocus | | | | Horizontal astigmatism | | | | Oblique astigmatism | | | | -coma | | | | -coma | | | | Spherical |
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