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Controllable phase control element for electromagnetic waves

專利號
US10868349B2
公開日期
2020-12-15
申請人
Lisa Draexlmaier GmbH(DE Vilsbiburg)
發(fā)明人
Joerg Oppenlaender; Alexander Moessinger
IPC分類
H01P1/17; H01P1/18
技術領域
phase,polarizers,antenna,waveguide,polarizer,polarized,element,wave,control,in
地域: Vilsbiburg

摘要

A controllable phase control element comprises a drive unit and a holder, to which at least two polarizers are attached, which are arranged one behind the other in the direction of incidence of a wave. Each polarizer is designed in such a way that the polarizer can convert a circularly polarized signal into a linearly polarized signal. The drive unit is designed in such a way that the holder and thus the polarizers can be mounted over a freely selectable angular range.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Since via the feed networks (10) the amplitude relations of the sent and received signals of the individual antennas are known precisely and additionally via the phase controllers the phase position of each of these signals can be determined precisely, the antenna diagram of the antenna array in every state of the antenna array (that is, even at any arbitrary time) is determined entirely deterministically.

If the requisite computation power is available in the microprocessor (11) or at some other point in the antenna system, it is therefore even possible to calculate the entire antenna diagram analytically at every time with very high precision. Particularly with a view to the regulatory conformity of the antenna diagram typically required in civilian applications, this represents a substantial advantage of arrangements according to the invention.

Even if the antenna arrays contain several thousand individual antennas, as is typically the case for instance in the frequency range above 10 GHz, it is possible with the aid of a Fast Fourier Transform (FFT) for the corresponding antenna diagram to be calculated very precisely with relatively little computation power. Correspondingly fast FFT algorithms are well known.

The embodiments described of FIGS. 1 through 7 apply analogously to the further development of the invention shown in FIGS. 8-10, so that many variations and combinations are possible.

REFERENCE NUMERALS

  • Phase control element 1
  • Drive unit 2
  • Holder 3

權利要求

1
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