A high-q antenna assembly and signal modulation method
An antenna component and signal modulation technology, which is applied in the field of high-Q antenna component and signal modulation based on rotary modulation, can solve the problems of limited communication bandwidth improvement and frequency limitation, and achieve the effect of improving communication performance
Active Publication Date: 2021-12-21
XIDIAN UNIV
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Problems solved by technology
However, the rotating objects in the above antennas are static field sources, such as permanent magnets, electrets, and positive and negative charge carriers. Static field sources can only generate electromagnetic waves when they are in a rotating state. The frequency of the electromagnetic waves is limited by the mechanical speed. Therefore, for The improvement of communication bandwidth is limited
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[0027] The present invention will be described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present invention in detail, for the convenience of explanation, the accompanying drawings showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. It should be noted that the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0028] like figure 1 As shown, the high-Q antenna assembly of this embodiment includes a high-Q antenna unit 1 , a feeding unit 2 , a rotating platform 3 and a rotating driving unit 4 . The high-Q antenna unit 1 is arranged on the rotating platform 3, and the rotating platform 3 is driven to rotate by the rota...
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A high-Q antenna assembly and a signal modulation method, the antenna assembly includes: a high-Q antenna unit; a feed unit, the feed unit includes an AC signal source for generating an electrical signal and is used to feed the electrical signal into the high-Q antenna unit The transmission line, the AC signal source is connected to the high-Q antenna unit through the transmission line; the rotating platform, the high-Q antenna unit is set on the rotating platform; the rotating drive unit that drives the rotating platform to rotate around its own axis. In the present invention, the electric signal generated by the feed unit is fed into the high-Q antenna assembly, and then the high-Q antenna is rotated through the rotating mechanism composed of the rotating drive unit and the rotating platform, and the radiation wave of the antenna is modulated by the rotating motion, breaking through The traditional mechanical rotating antenna modulates the electrical signal fed into the antenna through rotating motion, and the bandwidth and Q value are inversely proportional to the limitation. The working frequency is no longer limited by the mechanical speed, which can increase the spectral bandwidth of the antenna and improve the communication of the antenna. performance.
Description
technical field [0001] The invention belongs to the technical field of antennas, in particular to a high-Q antenna assembly and a signal modulation method based on rotational modulation. Background technique [0002] The input impedance of the antenna has both resistive and reactive components. The quality factor of the antenna (hereinafter referred to as the Q value) is equal to the ratio of the reactance component to the resistance component. The higher the Q value of the antenna, the lower the loss, and the higher the energy efficiency of the antenna, and the higher the Q value of the antenna, the higher the receiving sensitivity. The current common antenna modulation device is to modulate the electrical signal fed into the antenna, which will be limited by the inverse law of bandwidth and Q value. The higher the Q value of the antenna, the narrower the bandwidth, so the high Q antenna has a narrow bandwidth. Insufficient, affecting its communication ability. [0003] ...
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IPC IPC(8): H01Q1/50H01Q5/10H01Q5/314H01Q21/00
CPCH01Q1/50H01Q5/10H01Q5/314H01Q21/0006
Inventor 弓树宏刘峪侯牡玉刘毅
Owner XIDIAN UNIV