Abstract
A method to design low-sidelobe dual-beam antennas is proposed based on metasurface with independently regulated amplitude/phase. This method includes the following steps. Firstly, a standard horn antenna is modeled and the amplitude and phase of the radiation field at the interface are obtained. Next, the phase compensation technology based on the actual radiation phase of the feed is employed to control directions of the main lobe. Finally, the reflection amplitude of metasurface is controlled by combining Schelkunoff polynomials and actual radiation amplitude of the feed. Specifically, by mapping the angles of the dual beams to the complex coordinate system, the sidelobe level (SLL) of the dual-beam antenna is reduced. Meanwhile, a compensation factor is introduced to offset the gain loss caused by amplitude modulation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
