Ultra-wideband digital control phase shift device and phase control method
A digital control, ultra-broadband technology, applied in the direction of digital technology network, electrical components, impedance network, etc., to achieve the effect of low insertion loss, low power consumption, and flexible use
Active Publication Date: 2021-02-09
拓维电子科技(上海)有限公司
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Problems solved by technology
The shortcomings of both passive and active phase shifters are very obvious, and there is no phase shifter and phase control method that can combine the advantages of the two phase shifters.
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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0041] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article genera...
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The invention provides an ultra-wideband digital control phase shift device and a phase control method. The device comprises a processing module and a phase shifting module which are connected with each other, the phase shifting module comprises a plurality of phase shifting units, and the positions of any phase shifting unit or any phase shifting unit and the processing module can be exchanged; the processing module comprises a power divider, two digital variable gain amplifiers and a 3dB coupler, the output ends of the power divider are respectively connected with one digital variable gain amplifier, the output ends of the digital variable gain amplifiers are connected with the 3dB coupler, the 3dB coupler comprises two output ends, the first output end is grounded, and the second outputend is used as the output end of the first module; the phase shifting unit comprises a phase shifter and switches connected to the two ends of the phase shifter in parallel. In this way, the advantages of the active phase shifter and the passive phase shifter can be combined, the phase shifting precision can be controlled in a digital control mode, and the phase shifter has the advantages of being low in power consumption, low in loss, high in precision and flexible to use.
Description
technical field [0001] Embodiments of the present invention generally relate to the field of phase control, and more specifically, relate to an ultra-wideband digitally controlled phase shifting device and a phase control method. Background technique [0002] Phased array is the key technology of modern radar and 5G. Phased array radar uses multiple antenna elements to form an antenna array. By controlling the working state of the phase shifter, the phase distribution of the feed signal of the antenna array is changed to realize spatial beam scanning. As the core device of the phased array, the phase shifter needs to meet the requirements of high precision, low loss, and miniaturization. [0003] Common phase shifters are divided into passive phase shifters and active phase shifters. The passive phase shifter has a simple structure and low power consumption, but has a large area and large insertion loss; the active phase shifter has a large area Smaller, less insertion loss...
Claims
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IPC IPC(8): H03H17/08
CPCH03H17/08Y02D30/70
Inventor 田帆刘志哲刘晓东尹鸿杰陈林辉杜景超
Owner 拓维电子科技(上海)有限公司