Multi-phase shifter and multi-phase shifting method
A multi-phase and phase shifter technology, applied in the field of phase shifters, can solve the problems of long debugging time, uncontrollable phase error, inconsistent output load, etc., and achieve the effect of short debugging time
Active Publication Date: 2021-10-29
GUANGZHOU HUIZHI MICROELECTRONICS
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Problems solved by technology
[0002] In order to solve the problem of inconsistent output load and poor phase shift accuracy caused by the difference between the I / Q two-way current of the differential adder in the multi-phase phase shifter, in related technologies, manually adjust the current value of the I / Q two-way , until the expected phase is restored, additional debugging is required, the debugging time is long, and the phase error is uncontrollable
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[0064] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments provided herein are only used to explain the present application, and are not intended to limit the present application. In addition, the embodiments provided below are only some of the embodiments for implementing the present application, rather than all the embodiments for implementing the present application. In the case of no conflict, the technical solutions described in the embodiments of the present application can be combined arbitrarily. implement.
[0065] It should be noted that, in the embodiments of the present application, the terms "comprising", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a method or device including a series of elements not only includes the explicitly stated elements, but also other elements not expressly listed...
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The embodiment of the invention provides a multi-phase shifter and a multi-phase shifting method. The multi-phase shifter comprises an orthogonal signal generator, a differential adder, a controller and an amplifying circuit, the output end of the orthogonal signal generator is connected with the first input end of the differential adder, and the orthogonal signal generator is used for generating a first orthogonal signal; the output end of the controller is connected with the second input end of the differential adder, and the controller is used for generating a control signal for controlling the differential adder based on a preset phase shift angle; the output end of the differential adder is connected with the input end of the amplification circuit, and the differential adder is used for performing vector synthesis and phase compensation on the first orthogonal signal based on the control signal to obtain a first equal phase shift signal; and the amplification circuit is used for performing power amplification on the first equal-phase-shift signal to obtain a second equal-phase-shift signal after power amplification.
Description
technical field [0001] The present application relates to phase shifter technology, and in particular, to a polyphase phase shifter and a polyphase phase shift method. Background technique [0002] In order to solve the problems of inconsistent output load and poor phase shift accuracy caused by the difference between the I / Q currents of the differential adder in the multiphase phase shifter, in the related art, the current value of the I / Q two circuits is manually adjusted. , until the expected phase is restored, additional debugging is required, the debugging time is long, and the phase error is uncontrollable. SUMMARY OF THE INVENTION [0003] The embodiments of the present application are expected to provide a polyphase phase shifter and a polyphase phase shift method. [0004] In a first aspect, an embodiment of the present application provides a polyphase phase shifter, including: a quadrature signal generator, a differential adder, a controller, and an amplifier; ...
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IPC IPC(8): H03H11/16
CPCH03H11/16H03F3/24H03F3/19H03F2200/451
Inventor 彭洋洋李平李阳
Owner GUANGZHOU HUIZHI MICROELECTRONICS