To increase the radiated power of pulsed antenna arrays (PAR) of nanosecond and subnanosecond ranges, which are increasingly used in communication, location and electronic warfare systems, a method is used to increase the number of independent antenna modules containing an antenna and a less powerful generator, compared to a grating based on a single powerful generator. However, it became necessary to realize spatial synchronization of the signals emitted by these modules. In these ranges, the implementation of such a task is very difficult, due to the fact that the time shift of the position of the pulses of the generators is approximately equal to the pulse width. To solve this problem, a synchronizer was introduced into each antenna module, described as a discrete automatic parameter stabilization system with nonlinearity of the discriminating characteristic of a time-based discriminator of the relay type. The presence of jitter of the time position of the pulse emitted by the generator results in linearization of the discriminator’s relay characteristic, which made it possible to apply a linear model of the synchronization system for analysis and facilitated the determination of its parameters, such as the time of entering the synchronization mode, the capture and holding band, the static and dynamic errors of the time position of the pulse. Experimental PAR consisting of two and four elements showed the possibility of synchronization of signals in these bands and high quality of spatial alignment of signals. For the first time in the world, automatic spatial synchronization of the time position of nanosecond and subnanosecond pulses emitted by individual generators was realized, which confirmed the possibility of an almost unlimited increase in the radiated power of PAR in these ranges.
AUTOMATIC SYNCHRONIZATION OF THE TIME POSITION OF THE EMITTED SIGNALS OF THE PULSE PHASED ANTENNA ARRAY OF THE SUBNANOSECOND RANGE
2017
Article (Journal)
Electronic Resource
Unknown
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