Radio frequency phase shifter
A phase-shifting, radio frequency technology, applied in electrical components, circuits, waveguide-type devices, etc., can solve problems such as phased array antennas that have not been applied, and achieve the effect of reducing size and manufacturing cost and easy control.
Active Publication Date: 2019-01-11
ALCAN SYST GMBH
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Problems solved by technology
The necessary fabrication techniques are known in principle from liquid crystal display (LCD) manufacture, but have generally not been applied to construct phased array antennas
Method used
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[0041] figure 1 The phased array antenna 1 shown in includes 64 individual antenna elements 2 arranged in a square grid pattern with 8x8 antenna elements 2 . In the center there is a single signal feed point 3 on the back side of the grid pattern. Electromagnetic signals, preferably radio frequency signals, can be introduced into the phased array antenna 1 via signal feed points 3 and distributed to all corresponding antenna elements 2 . In the same way, electromagnetic signals received by individual antenna elements 2 of the phased array antenna 1 can be transmitted to the signal feed point 3 and extracted from the phased array antenna. All individual antenna elements 2 are connected to a signal feed point 3 . The connection includes a dedicated phase shifter for each individual antenna element 2, however, the phase shifter is not in figure 1 shown in .
[0042] The phase shifting means can be an electrical connection of the individual antenna elements 2 to the signal fee...
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A phase shifting device (17) with a linear transmission line (4) comprises a first electrode (5) and a second electrode (6) spaced apart from each other, wherein a tunable dielectric material is arranged between the first electrode (5) and the second electrode (6). The transmission line (4) comprises several overlapping sections (12), wherein an overlapping region (10) of the first electrode (5) overlaps an overlapping region (11) of the second electrode (6) in order to provide a parallel plate capacitor region (13) affecting the phase of the electromagnetic signal propagating along the transmission line (4). A first electrode (5) and a second electrode (6) are electrically connected to a bias voltage source, whereby the first electrode (5) is connected to the first bias electrode (15). The first bias electrode is connected to a bias voltage source, and thus the second electrode is connected to the second bias electrode, and the second bias electrode is connected to the bias voltage source, whereby the first and second bias electrodes (15, 16) are constituted of a material having a conductivity lower than that of the first and second electrodes (5, 6).
Description
technical field [0001] The present invention relates to a radio frequency phase shifting device with a transmission line comprising a first electrode and a second electrode, the first electrode and the second electrode are spaced apart from each other and are suitable and used for radio frequency electromagnetic signals to pass along the first electrode and the second electrode. The electrodes propagate with a 180° phase difference between corresponding electromagnetic signals, wherein the tunable dielectric material affects the phase shift of the electromagnetic signals propagating along the transmission line. Background technique [0002] Phase shifting devices can be used to modify the relative displacement between two corresponding features like peaks or zero crossings of an electromagnetic wave or signal without changing the frequency of the electromagnetic wave or signal. When two or more than two electromagnetic signals of the same frequency are stacked, the result de...
Claims
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IPC IPC(8): H01P1/18
CPCH01P1/18
Inventor F.格尔登A.格布勒O.H.卡拉贝伊
Owner ALCAN SYST GMBH