CMOS three-port amplifier applied to TR assembly

An amplifier and three-port technology, applied in the field of CMOS devices, can solve the problems of increasing circuit cost and power consumption, reducing the output power of the driver and amplifier, and reducing the gain of the low-noise amplifier, so as to reduce the signal transmission loss, reduce the nonlinear distortion, improve the The effect of output power

Active Publication Date: 2018-01-23
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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AI Technical Summary

Problems solved by technology

[0004] However, after the traditional three-port amplifier structure introduces the transceiver switch, the transceiver switch can easily switch the working state, but when it works in the forward direction, the transceiver switch will reduce the output power of the driver; when it works in the reverse direction, it will introduce redundant noise and reduce the low The gain of the noise amplifier; in addition, it will increase the circuit area, increase the circuit cost and power consumption

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  • CMOS three-port amplifier applied to TR assembly
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  • CMOS three-port amplifier applied to TR assembly

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Embodiment Construction

[0027] 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 detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0028] see figure 2 , the three-port amplifier of the present invention includes a drive amplifier DA and a low noise amplifier LNA. When working in the forward direction, the single-ended RF input signal is connected to the input terminal of the drive amplifier and output from the common terminal; when working in reverse, the input signal is connected to the common terminal and output from the output terminal of the low noise amplifier.

[0029] see image 3 , the driving amplifier includes transistors M1, M2, M10, inductors L1, Ld, resistors R1, R2, capacitors C1, C2, C3. The drain of the transistor M1 is con...

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Abstract

The invention discloses a CMOS three-port amplifier applied to a TR assembly. The CMOS three-port amplifier comprises a driving amplifier and a low noise amplifier, the output end of the driving amplifier is directly connected with the input end of the low noise amplifier, during forward working, an input signal is connected with the input end of the driving amplifier and output by a common port,and during backward working, the input signal is connected with the common port and output by the output end of the low noise amplifier. The CMOS three-port amplifier has the advantages that receive-send switching is achieved without an additional receive-send switch, and impedance matching of the common port is achieved.

Description

technical field [0001] The invention relates to a CMOS device, more specifically to a CMOS three-port amplifier applied to a TR assembly. Background technique [0002] The TR component is a key component of the active phased array radar. Whether its design is successful or not determines the cost, manufacturability and system performance of the entire radar. A three-port amplifier combining a transceiver switch, a drive amplifier, and a low-noise amplifier is commonly found in TR components, where the transceiver switch controls the TR component to work in the forward or reverse state, and then performs power amplification or low-noise amplification. [0003] CMOS technology has been used as the mainstream technology for digital circuit design for a long time, making the technology very mature, with high integration, the lowest cost and the smallest power consumption. With the improvement of CMOS technology level and the emergence of new RF IC design methods and transceiver...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/02H03F1/26H03F1/32H03F1/48H03F1/56H03F3/45
Inventor 吴博文段宗明吕伟王研马强
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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