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Controllable Phase Control Elements for Electromagnetic Waves

A phase control, electromagnetic wave technology, applied in electrical components, waveguide devices, circuits, etc., can solve problems such as the infeasibility of solid-state phase shifters

Active Publication Date: 2021-07-06
LISA DRAXLMAIER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is practically not feasible for solid state phase shifters and MEMS phase shifters or liquid crystal phase shifters

Method used

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  • Controllable Phase Control Elements for Electromagnetic Waves
  • Controllable Phase Control Elements for Electromagnetic Waves
  • Controllable Phase Control Elements for Electromagnetic Waves

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] exist figure 2 The basic principle of operation of the invention is shown in . with circular polarization and phase The incident wave 5a of is converted into a wave with linear polarization 5b by the first polarizer 4a. It is converted again into a wave with circular polarization 5c by the second polarizer 4b.

[0049] If the phase control element 1 is now rotated by the angle Δθ by means of the drive unit 2, the polarization vector 5b of the linear wave is subsequently rotated between the two polarizers 4a and 4b in a plane perpendicular to the direction of propagation. Since the polarizers 4a and 4b are also rotated accordingly, the circular wave 5c generated by the second polarizer 4b has phase, such as figure 2 shown.

[0050] Due to the construction of the controllable phase control element according to the invention, the relationship between the phase angle difference between the outgoing circular wave 5c and the incident circular wave 5b and the rotation...

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PUM

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Abstract

A controllable phase control element according to the invention comprises a drive unit (2) and a support (3) on which at least two polarizers (4) arranged one behind the other in the wave incident direction are mounted. Each polarizer (4) is designed to convert circularly polarized signals into linearly polarized signals. The drive unit (2) is designed such that the support (3) and together with the polarizer can be rotated in a freely selectable angular range.

Description

technical field [0001] The invention relates to a controllable phase control element for electromagnetic waves, in particular for the GHz frequency range and in particular for antennas. Background technique [0002] Various HF systems use controllable phase control elements ("phase shifters") in signal processing. An important field of application is antennas or antenna systems, which primarily involve the phase-coherent superposition of signals. [0003] It is known that the antenna pattern of a stationary antenna group can be varied spatially by means of controllable phase control elements (“phase shifters”). The main beam can thus be steered in different directions. [0004] Furthermore, the phase control element changes the relative phase of the signals received or transmitted by the different individual antennas of the array antenna. If the relative phases of the signals of the individual antennas are adjusted accordingly by means of the phase control elements, the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/17H01P1/18H01Q3/32
CPCH01P1/17H01P1/182H01Q3/32H01P1/172
Inventor 约格·欧本兰德亚历山大·莫辛格
Owner LISA DRAXLMAIER GMBH