Dual-channel launch assembly for the phased array antenna of the relay user terminal of the launch vehicle

Abstract

The invention discloses a dual-channel transmitting assembly for a phased array antenna of a carrier rocket relay user terminal, which includes a first channel radio frequency circuit and a second channel radio frequency circuit; the first channel radio frequency circuit includes: a sequentially connected second channel radio frequency circuit A digitally controlled phase shifter for one channel, a driving amplifier for the first channel, a power amplifier for the first channel, a microstrip directional coupler for the first channel, a single-section isolator for the first channel, and a first channel connected to the microstrip directional coupler for the first channel channel detection diode; the second channel radio frequency circuit includes: a second channel digitally controlled phase shifter, a second channel drive amplifier, a second channel power amplifier, a second channel microstrip directional coupler, a second channel A single-section isolator, and a second-channel detection diode connected to the second-channel microstrip directional coupler. Compared with the single-channel phase-shifting transmitting assembly, the present invention has a compact structure, which is beneficial to reducing the front area of ​​the phased array antenna and reducing the weight of the whole machine of the phased array antenna.

Description

technical field [0001] The invention belongs to the technical field of microwave circuits, and in particular relates to a dual-channel transmitting assembly used for a carrier rocket relay user terminal phased array antenna. Background technique [0002] With the completion and use of my country's relay satellite system, the conditions for the launch vehicle to use space-based measurement and control technology to conduct full-course measurement and control of the flight have matured. This will greatly improve the shortcomings of traditional ground-based measurement and control technology that cannot meet the coverage of measurement and control and the real-time performance of data transmission. [0003] The space-based measurement and control system of the launch vehicle uses an active phased array antenna, which will benefit the conformal design of the rocket body. At the same time, the fast beam scanning capability of the phased array antenna will also greatly enhance the...

AI Technical Summary

Problems solved by technology

At present, most of the phase-shifting transmitting components used in domestic rocket-borne phased array antennas are single-channel components, which have disadvantages such as low efficiency, complicated assembly, and large structure.

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