Method for generating radio frequency orbital angular momentum beams based on annular traveling wave antenna
A technology of orbital angular momentum and traveling wave antennas, which is applied in loop antennas, antennas, electrical components, etc., to achieve the effects of easy implementation, increased capacity, and practical application
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[0018] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0019] 1. Generation of radio frequency OAM beams based on ring traveling wave antennas.
[0020] Assume that the loop traveling wave antenna is an electrical source antenna, such as figure 1 As shown, the current distribution on the antenna satisfies , calculate the radiation field of the loop traveling wave antenna in space.
[0021] The basic idea is: divide the circular antenna into N sections, and ensure that the length of each small section of antenna ΔL<
[0022] E = θ 0 ...
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