Amplitude phase precision adjustable attenuation phase shift architecture

An adjustable and precise technology, applied to waveguide devices, circuits, transmission systems, etc., can solve problems such as inability to adjust on-chip according to the requirements of amplitude and phase accuracy indicators, and iterative optimization of multiple turns of chips.

Active Publication Date: 2022-06-24
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to solve the problem that the amplitude and phase accuracy of the amplitude and phase control chip in the existing phased array transceiver system needs multiple rounds of chip iterative optimization and cannot be adjusted on the chip according to the requirements of the amplitude and phase accuracy index. An attenuation and phase-shift architecture with adjustable amplitude and phase precision. The invention is based on silicon-based technology, and realizes the precision adjustment of the 6-bit attenuation and 6-bit phase shift required by the entire phased array s

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  • Amplitude phase precision adjustable attenuation phase shift architecture
  • Amplitude phase precision adjustable attenuation phase shift architecture
  • Amplitude phase precision adjustable attenuation phase shift architecture

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Embodiment Construction

[0019] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following implementation. example.

[0020] like figure 1 As shown, this embodiment provides a technical solution: an attenuation and phase-shifting architecture with adjustable amplitude and phase accuracy, based on a silicon-based process, under the background that the external system requires 6-bit attenuation and 6-phase shift, through on-chip integration can find The code value register realizes the amplitude and phase control of the 9-bit digitally controlled active attenuator and 9-bit digitally controlled active phase shifter, and the architecture can realize the adjustment and optimization of the amplitude and phase accuracy by writing the store...

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Abstract

The invention, which belongs to the technical field of chip circuit design, discloses an amplitude-phase precision adjustable attenuation phase shift architecture comprising an active numerical control attenuator, an active numerical control phase shifter, and a table look-up code value register. According to the invention, under the background that an external system requires 6-bit attenuation and 6-bit phase shift, the direct attenuation bit number and the phase shift bit number are respectively increased to 9 bits, so that further improvement of the amplitude-phase precision becomes possible; in addition, based on the architecture, under the condition that the system complexity and the write-in data time of the power-on table look-up code value register are allowed, the 9-bit direct control bit can still be further increased; along with the increase of direct control bits, corresponding attenuation and phase shift phases are respectively increased to 512 bits from original 64 bits, and each attenuation state and each phase shift state can be selected from a plurality of states under the condition that external 6-bit control bits are not changed. Different code values can be written into a table look-up code value register to realize on-chip adjustment and optimization of an amplitude-phase multifunctional chip according to index requirements of different attenuation phase shift precisions of a system.

Description

technical field [0001] The invention relates to the technical field of chip circuit design, in particular to an attenuation phase-shifting architecture with adjustable amplitude and phase precision. Background technique [0002] Achieving high-precision numerical control attenuation and phase shifting is the core technology of the phased array transceiver system. However, in the actual chip circuit design, there is often a certain deviation between simulation and actual measurement. For example, for the 6-bit attenuation and 6-bit phase shift required by the system, if the design is aimed at the 6-bit direct control bit attenuator and the 6-bit direct control phase shifter for simulation, there is often a certain amplitude and phase accuracy offset in the actual measurement. It is necessary to iteratively optimize the chip to achieve the desired accuracy requirements. [0003] The traditional numerical control attenuator can usually be combined with MOS switch tube, based o...

Claims

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Application Information

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IPC IPC(8): H04B1/40H01P1/18H01P1/22
CPCH04B1/40H01P1/18H01P1/22Y02D30/70
Inventor 庞东伟金来福丁德志韦玲玲王小虎吴士伟桂勇锋段宗明
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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