Microwave solid-state power amplifier

A power amplifier and solid-state power technology, applied in the direction of power amplifiers, etc., can solve the problems of not being able to reduce the efficiency of miniaturization, the difficulty of designing the stability of power-on work for a long time, and the complexity of the whole machine, so as to achieve high gain, avoid heat consumption, The effect of improving the efficiency of the whole machine

Inactive Publication Date: 2012-07-25
NAT SPACE SCI CENT CAS
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Problems solved by technology

[0011] The object of the present invention is to overcome defects such as the effective suppression of the out-of-band spectrum of the working frequency band of the microwave solid-state power amplifier in the prior art, which causes the whole machine to be incapable of light miniaturization, low efficiency, and difficult design of long-term power-on work stability. The invention provides a microwave solid-state power amplifier

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] The invention discloses an X-band solid state power amplifier (SSPA: Solid State Power Amplifier) ​​technology. The amplifier is composed of multi-stage signal amplification circuits, the total mass is 3 ;Work in the ambient temperature range of -45℃~+65℃, output power>10W (40.0dBm). The amplifier has been used in the X-band transmitter of the deep space probe YH-1 Mars probe developed for the first time in China to amplify the beacon signal and telemetry signal in the inter-satellite communication mission.

[0029] The invention discloses a high-efficiency microwave solid-state power amplifier (SSPA), which is specially used for deep space exploration aircraft (satellites whose orbit height is greater than 2 million kilometers) or small earth orbit satellites. The total mass of the amplifier is less than 800.0g, and the volume is 160×1...

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Abstract

The invention relates to a microwave solid-state power amplifier. The power amplifier works at the environmental temperature ranging from -45 DEG C to +65 DEG C and is used for amplifying a beacon signal and a remote signal between the star and the ground in the communication task, and the solid-state power amplifier adopts multi-stage amplifier cascading, the power amplifier comprises a preamplifier, a driving power amplifier and a final power amplifier connected in series orderly; a microwave signal input end is connected with an input end of the preamplifier, an radio frequency input and output end of each amplifier circuit is connected with a micro-strip isolator; two X-waveband cavity band-pass filters are respectively connected between the microwave signal input end and the preamplifier input end and between an output end of the preamplifier and an input end of the driving power amplifier. The preamplifier also comprises a small signal amplifier and a high-gain microwave integrated power amplifier which are connected in series orderly.

Description

technical field [0001] The invention relates to a power amplifier in an X-band transmitter of a deep-space probe YH-1 Mars probe, which is used to amplify beacon signals and telemetry signals in inter-satellite communication tasks, and specifically relates to a microwave solid-state power amplifier. Background technique [0002] The Sino-Russian joint Mars exploration project was launched in 2007, and China developed the first deep space probe YH-1 Mars probe. The distance between Mars and the earth is 300-350 million kilometers, and the YH-1 Mars rover measurement and control data transmission subsystem needs to realize effective communication with the earth in such a deep space environment with such an ultra-long communication distance. The downlink mainly completes the downlink transmission tasks of the detector engineering telemetry parameters and scientific detection data; cooperates with the ground very long baseline interferometry network (VLBI) to complete the orbit ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/20
Inventor 梁显锋谢春坚熊蔚明安军社陈晓敏孙辉先
Owner NAT SPACE SCI CENT CAS
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