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Novel programmable millimeter wave digital power amplifier

A digital power and millimeter-wave technology, applied in the direction of power amplifiers, amplifiers, differential amplifiers, etc., can solve the problems of fixed output power and low power back-off efficiency, reduce common-mode gain, improve power back-off efficiency, and reduce power consumption effect

Active Publication Date: 2018-06-12
BEIJING INST OF REMOTE SENSING EQUIP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a novel programmable millimeter-wave digital power amplifier, which solves the shortcomings of conventional millimeter-wave power amplifiers with fixed output power and low power back-off efficiency

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  • Novel programmable millimeter wave digital power amplifier

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Embodiment Construction

[0019] A new programmable millimeter wave digital power amplifier, NMOS switch M0, NMOS switch M1, NMOS amplifier M2, NMOS amplifier M3, NMOS amplifier M4 and NMOS amplifier M5, bias resistor R1, bias resistor R2 , DC blocking capacitor C1, DC blocking capacitor C2, neutralization capacitor C3, neutralization capacitor C4, common mode suppression inductor L1 and differential to single-ended transformer TF1. The NMOS refers to N-channel metal oxide semiconductor.

[0020] The NMOS amplifier tube M2 and the NMOS amplifier tube M3 have the same size and are differentially symmetrical to each other, and the NMOS amplifier tube M4 and the NMOS amplifier tube M5 have the same size and are differentially symmetrical to each other. The NMOS amplifier tube M4 and the NMOS amplifier tube M5 are larger in size than the NMOS amplifier tube M2 and the NMOS amplifier tube M3. The size ratio of the NMOS switch M0 and the NMOS switch M1 is the same as that of the NMOS amplifier M2 and the NM...

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Abstract

The invention discloses a novel programmable millimeter wave digital power amplifier. The power amplifier comprises NMOS amplifier tubes M0 and M1, NMOS switch tubes M2, M3, M4, M5, a bias resistor R1, a bias resistor R2, blocking capacitors C1 and C2, neutralizing capacitors C3 and C4, a common-mode rejection inductor L1, and a differential to single-end transformer TF1. A millimeter wave radio frequency differential signal is input through the blocking capacitors C1 and C2, and amplified and output through the amplifier tubes M2, M3, M4 and M5; the on / off of the switch tubes M0 and M1 is controlled through the digital control signal D0 and the digital control signal D1, and then the on / off of the amplifier tube is controlled, thereby controlling the output power of the amplifier, and thedefect that the output power of the traditional millimeter wave power amplifier is non-adjustable. The power amplifier disclosed by the invention is simple in structure, high in integration degree, and can be used for the millimeter wave power amplifier and other millimeter wave integrated circuit system design; the output power digital programming is realized, and the power back-off efficiency of the power amplifier and the system is improved.

Description

technical field [0001] The invention relates to a millimeter wave power amplifier, in particular to a novel programmable millimeter wave digital power amplifier. Background technique [0002] In recent years, with the rapid development of complementary metal-oxide semiconductor (CMOS) technology, it has become a reality to implement millimeter-wave integrated circuits using CMOS technology. CMOS integrated circuit technology has obvious advantages in digital circuit design. Using the characteristics of CMOS integrated circuit technology, it can realize the design of digital, analog and radio frequency hybrid circuits with various functions. Conventional millimeter-wave power amplifier structures are basically divided into common-source structure, common-gate structure, and cascode structure. In these structures, the size of the amplifier tube is fixed, so the output power of a single amplifier is often fixed and cannot be adjusted, or the gain cannot be adjusted. However, i...

Claims

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Application Information

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IPC IPC(8): H03F3/21H03F3/213H03F3/217H03F3/45H03F1/02
CPCH03F1/0205H03F3/211H03F3/213H03F3/2178H03F3/45928
Inventor 陈林辉刘晓东刘志哲聂利鹏曹玉雄陈磊
Owner BEIJING INST OF REMOTE SENSING EQUIP
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