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Single-chip-integrated low-power-consumption microwave radar sensing chip and radar module

A microwave radar and sensing chip technology, applied in radio wave measurement systems, measurement devices, radio wave reflection/re-radiation, etc., can solve the problem that the cost and power consumption of the Internet of Things cannot be met, and the power consumption of radio frequency microwave chips cannot be met. Advanced problems, to achieve the effect of good radio frequency performance consistency, low power consumption, and good consistency

Pending Publication Date: 2019-06-18
成都指灵瞳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: the existing microwave circuit cannot integrate the radio frequency front end, the signal processing circuit, the analog circuit, and the MCU digital control circuit into the chip circuit of the same base material, and the power consumption of the radio frequency microwave chip is high, so it cannot The application in battery-powered systems cannot meet the extremely low cost and power consumption requirements of Internet of Things applications; the present invention provides a single-chip integrated low-power microwave radar sensing chip and radar module that solves the above problems

Method used

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  • Single-chip-integrated low-power-consumption microwave radar sensing chip and radar module
  • Single-chip-integrated low-power-consumption microwave radar sensing chip and radar module
  • Single-chip-integrated low-power-consumption microwave radar sensing chip and radar module

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Embodiment 1

[0045] Such as figure 2 , image 3 As shown, the monolithically integrated low-power microwave radar sensing chip, the microwave radar sensing chip 1 includes a radio frequency circuit module, an analog circuit module and a digital circuit module, adopts RF-CMOS complementary metal oxide technology, and the radio frequency circuit The module, the analog circuit module and the digital circuit module are integrated into one chip to form a system-on-chip; the microwave radar sensing chip 1 provides a basic clock for the system through an external passive crystal oscillator input signal XTAL_P / XTAL_N, The radar signal is transmitted outward through the TX transmitting antenna 201, and the signal reflected by the target is received through the RX receiving antenna 200; the voltage domain of the microwave radar sensing chip 1 is divided and powered separately by means of voltage domain division and time-sharing operation . Among them, a 0.18um RF-CMOS complementary metal oxide pr...

Embodiment 2

[0069] Such as Figure 4 As shown, the difference between this embodiment and embodiment 1 is that

[0070] The monolithically integrated low-power microwave radar module 20 includes a monolithically integrated low-power microwave radar sensing chip 1, and also includes a receiving antenna 200 and a transmitting antenna 201 all connected to the microwave-consuming radar sensing chip 1 , a passive crystal oscillator 203, a resistance / capacitance device 204 and a connector 205, and they are all integrated on the PCB printed circuit board 202;

[0071] The receiving antenna 200 is used to receive target transmission signals;

[0072] The transmitting antenna 201 is used to transmit the radar signal of the microwave-consuming radar sensing chip 1;

[0073] The passive crystal oscillator 203 is used to provide an oscillation source clock for the microwave radar sensing chip 1;

[0074] The resistance / capacitance device 204 is used to provide RC power-on reset and power filtering...

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Abstract

The invention discloses a single-chip-integrated low-power-consumption microwave radar sensing chip and a radar module, thereby solving problems that the radio-frequency front end, the signal processing circuit, the analog circuit and the MCU digital control circuit can not be integrated to a chip circuit of a same substrate material by the microwave circuit and the power consumption of the radio-frequency microwave chip is high and thus the low-cost and low-power consumption requirements of the IoT application can not be met. The microwave radar sensing chip comprises a radio frequency circuit module, an analog circuit module and a digital circuit module. On the basis of an RF-CMOS complementary metal oxide process, the radio frequency circuit module, the analog circuit module and the digital circuit module are integrated to one chip to form an on-chip system. The microwave radar sensing chip inputs a signal XTAL_P / XTAL_N by an externally connected passive crystal oscillator to provide a basic clock for the system; a TX transmitting antenna transmits a radar signal externally; and an RX receiving antenna receives a signal reflected back by the target. With voltage domain segmentation and time-sharing modes, the voltage domain of the microwave radar sensing chip is segmented and power is provided respectively.

Description

technical field [0001] The invention relates to the technical field of microwave radar sensing chips, in particular to a single-chip integrated low-power microwave radar sensing chip and a radar module. Background technique [0002] Microwave refers to extremely high-frequency electromagnetic waves with a frequency in the range of 300MHz to 300GHz, and its wavelength ranges from 1m to 1mm. Microwave has the characteristics of straight line (line-of-sight) propagation, no interference from other electromagnetic waves, wide frequency range, and small system size. It was first widely used in the communication field. Another most important application of microwave technology is radar. The use of microwave radar to measure the speed, distance and direction of long-distance flying targets has been successfully applied as early as World War II. [0003] Different from infrared detectors, this microwave component is sensitive to various objects that can reflect microwaves and is no...

Claims

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Application Information

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IPC IPC(8): G01S7/285G01S13/50
Inventor 吴磊
Owner 成都指灵瞳科技有限公司
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