A solid-state microwave power synthesis driver module

Abstract

The invention discloses a solid-state microwave power synthesis drive module, which includes a high-speed switch, a phase adjustment module, a multi-stage drive module, an adjustable attenuation module and a final-stage drive module. High-speed switches use two or more stages in series to improve switch isolation. The phase adjustment module can achieve 0‑360° phase adjustment within a certain adjustment voltage range. The series connection of multi-level drive modules can effectively reduce the amplitude affected by the phase change, and the output amplitude change of the N-level drive power amplifier can be controlled within ±0.2dB; after that, one or more adjustable attenuation modules can be connected in series to further improve the isolation. , the effect of increasing the attenuation. Before each stage is connected in series, a group of π-shaped resistors should be connected in series, which can further reduce the standing wave of the whole circuit and improve the isolation between modules of each stage.

Description

technical field [0001] The invention relates to the field of solid-state microwaves, in particular to the field of high-power solid-state microwave synthesis. Background technique [0002] Vacuum devices such as magnetrons and klystrons have always been the mainstream of kilowatt-level high-power microwave sources. However, with the development of semiconductor technology, the research and development of semiconductor devices that can output several hundred watts of power on a single chip is becoming more and more mature, and the price is also increasing. Decline, solid-state microwave sources with such semiconductor solid-state devices have gradually become mainstream. [0003] High-power solid-state microwave sources are mainly realized by multiplexing. The core of microwave power synthesis is the phase-amplitude consistency of each module. Especially for high-frequency power amplifier modules, it is difficult to ensure the phase and amplitude consistency of each power am...

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Problems solved by technology

[0005] But in most cases, especially in the case of high frequency, the consistency of the module can be guaranteed in the physical structure, but due to the internal reasons of the chip, there is still a large difference in the phase inevitably, and a larger range of phase adjustment is required. At this time Obviously the above method is no longer applicable

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