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Millimeter wave broadband gain self-balancing low-power amplifier capable of switching power supply up and down

A low-power, amplifier technology, applied in the design field of millimeter-wave broadband gain self-balanced low-power amplifiers that can switch power supply up and down and other problems, to achieve low power consumption, improve output impedance matching, and gain self-balancing is easier.

Pending Publication Date: 2020-09-15
CHENGDU GANIDE TECH
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Problems solved by technology

The gain of any active device has a characteristic of gradually decreasing at the high frequency end. In addition to the decrease of the forward gain S21, the reverse gain S12 increases, which will further reduce the overall gain of the amplifier and make the device into an oscillation state. sex increase
Especially in the millimeter wave frequency band, it will be more difficult to achieve gain self-equalization
[0005] Microwave components often involve a variety of components, so the layout of the components in the component is also very important. Unreasonable layout will lead to an increase in the size of the component, and there will also be problems such as electromagnetic interference.

Method used

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  • Millimeter wave broadband gain self-balancing low-power amplifier capable of switching power supply up and down

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Embodiment Construction

[0023] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0024] The embodiment of the present invention provides a millimeter-wave broadband gain self-balancing low-power amplifier that can switch power supply up and down, such as figure 1 As shown, it includes transistor M1 and transistor M2. The gate of transistor M1 is respectively connected to the output end of the input matching network and one end of the first parallel negative feedback network through the microstrip line TL4, and its drain is respectively connected to the first terminal of the first parallel negative feedback network through the microstrip line TL5. The other end of a parallel negative feedback network ...

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Abstract

The invention discloses a millimeter wave broadband gain self-balancing low-power amplifier capable of switching power supply up and down. A parallel negative feedback structure is combined with a current multiplexing structure, so that the bandwidth is broadened, gain self-balancing is realized in an ultra-wideband range, the balancing amount can reach 2-3dB, and meanwhile, low power consumptionis realized. Meanwhile, the two power supply feed ends of an output matching network are each provided with a power supply filtering structure, when one end is fed, the other end is kept suspended, and up-down switchable power supply can be realized. The amplifier is convenient to use, and the layout of a microwave assembly where an ultra-wideband millimeter wave amplifier chip is located is facilitated.

Description

technical field [0001] The invention belongs to the technical field of microwave monolithic integrated circuits, and in particular relates to the design of a millimeter-wave broadband gain self-balancing low-power amplifier capable of switching power supply up and down. Background technique [0002] Microwave monolithic integrated circuit, referred to as MMIC, is a microwave circuit in which active and passive components are fabricated on the same semiconductor substrate. It has the characteristics of small size, high stability, good consistency, and small parasitic parameters, making it the most attractive choice for military electronics and civilian communication systems. Ultra-wideband millimeter-wave amplifier chips are key products of multi-field electronic equipment due to their advantages of wide bandwidth and large communication capacity, and are widely used in precision guidance, radar communication, aerospace measurement and control, and satellite communication. ...

Claims

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Application Information

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IPC IPC(8): H03G3/30
CPCH03G3/30
Inventor 叶珍胡柳林滑育楠王测天刘莹廖学介邬海峰
Owner CHENGDU GANIDE TECH
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