Method for improving airborne ultra-short wave communication distance through double-antenna gain synthesis
A technology of communication distance and ultrashort wave, which is applied in the direction of antennas and electrical components, etc., can solve the problems of limited ultrashort wave communication distance, achieve the effect of improving blind area communication effect and long-distance communication effect, stable erection state, and avoiding weight gain.
Active Publication Date: 2020-12-18
10TH RES INST OF CETC
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[0005] The invention aims at the problem that the airborne ultrashort wave antenna is affected by the upturning or downturning of the beam caused by the installation environment, and the ultrashort wave communication distance is limited, and provides a method that is conducive to deep coverage, can improve the pattern characteristics of the horizontal plane of the antenna, and has high antenna gain. Dual-antenna gain synthesis Dual-antenna gain synthesis improves airborne ultrashort wave communication distance
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[0014] refer to figure 1 . According to the present invention, a pair of ultrashort wave antennas consistent with the space diversity technology antenna configuration are respectively installed on the back and belly of the airborne platform, a pair of ultrashort wave upper antennas are installed on the back of the machine, and a pair of ultrashort wave lower antennas are installed on the belly. The front-end transceiver component adopts a different method from the space diversity technology, one pair of antennas connected to one receiving channel, and the two antennas are combined into one channel to enter the functional link to realize the beam synthesis of the two antennas; among them, the two antennas are respectively installed on the back of the airborne platform The upper and lower ultrashort wave antennas on the top and the bottom of the belly control the phase modulation of the two antennas through the RF front-end transceiver components, and perform beam synthesis on t...
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The invention discloses a method for improving airborne ultra-short wave communication distance through double-antenna gain synthesis, and aims to provide a method capable of improving antenna patterncharacteristics and improving ultra-short wave communication distance. According to the technical scheme, an ultra-short wave antenna consistent with a space diversity technology antenna in configuration is installed on each of the aircraft back and the aircraft belly of an airborne platform, an ultra-short wave upper antenna is installed on the aircraft back, an ultra-short wave lower antenna isinstalled on the aircraft belly, the two antennas are combined into one path to enter a functional link through a radio frequency front-end transceiving assembly, and beam forming is realized; the ultra-short wave upper antenna and the ultra-short wave lower antenna are installed at the top of the aircraft back and the bottom of the aircraft belly of the airborne platform respectively, phase modulation control is conducted on the two pairs of antennas through the radio frequency front-end transceiving assembly, beam forming is conducted on main beams with upwarping and downwarping three-dimensional directional diagrams of the two pairs of ultra-short wave antennas, and the beams formed by combining the two antennas point to the horizontal plane. And the airborne ultra-short wave communication distance is increased by using a double-antenna gain synthesis technology.
Description
technical field [0001] The present invention relates to the technical field of antennas, and more specifically relates to a method applicable to the airborne ultrashort wave communication function to increase the communication distance. Background technique [0002] Ultrashort wave communication is on 108-400MHz, using radio waves in the ultrashort wave frequency band to carry out radio communication for line-of-sight transmission of information. Ultrashort wave is also called very high frequency (VHF) wave and meter wave. It is a radio wave with a frequency from 30 MHz to 300 MHz. Unlike short-wave propagation, there is no ionospheric reflection, but relies on ionospheric scattering to achieve long-distance propagation. There are two main forms of ultrashort wave ionospheric propagation: scattering propagation and transmission propagation. Its wavelength is between 0.75-3m, so it is also called meter wave communication. Ultrashort wave propagation mainly relies on straig...
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IPC IPC(8): H01Q3/36
CPCH01Q3/36Y02D30/70
Inventor 芮锡郭晨钟志浩李亚军周映龙小凤王颖李铂
Owner 10TH RES INST OF CETC