N+1 radio frequency (RF) high-power intelligent synthesis system

Abstract

The invention relates to a high-power intelligent synthesis system which is an important component of a necessary system for an N+1 television transmitting system. The creative system is used to support transmitting systems of multiple digital television transmitters with the power of 500W or above and undertake radio frequency (RF) power synthesis, namely a passive synthesis system. Under the control of a computer, the system provided by the invention intelligently sends the N+1 channels of RF power signals output by the N+1 transmitters (usually N is a positive integer less than or equal to eight), wherein N channels of RF power signals are sent to a filter group and one channel of RF power signals is sent to a load. The out-of-band clutters in the N channels of RF power signals are filtered out by the filter group and then synthesized, output and sent to an antenna feed system for users to receive. The N+1 RF high-power intelligent synthesis system comprises management software (platform), an exchanger, a synthesizer group, a band-pass filter group, an intelligent coaxial switch group and a load of the system. The characteristics of the system provided by the invention lie in that high-power RF synthesis can make multiple transmitters to share the same antenna feed system, and the system operate with low consumption (high efficiency) in a full adjacent frequency and intelligent (controlled by a computer) mode, and can realize an N+1switching function.

Description

technical field [0001] The N+1 radio frequency (RF) high-power intelligent synthesis system involved in the present invention is a necessary important component of the N+1 television transmitting system. The transmission system used to support multiple digital TV transmitters with a power of 500W and above is responsible for RF power synthesis, which is its passive synthesis system; it is uniquely created by our company. The present invention intelligently sends N+1 (normally N is a positive integer ≤ 8) RF power signals output by N+1 transmitters to the filter bank; to the load. The N-channel RF power signals are filtered by the filter bank to filter out the out-of-band clutter, then synthesized and output, sent to the antenna feeder system, and transmitted to the air for users to receive. [0002] Although the present invention is named after "N+1 radio frequency (RF) high-power intelligent synthesis system", it is also completely applicable to N+1 radio frequency (RF) low...

AI Technical Summary

Problems solved by technology

[0004] The general RF high-power synthesis system, its design idea still stays in the mode of analog TV, without the application of computer control to realize intelligent operation; moreover, most of them adopt frequency separation synthesis transmission or dual-antenna air adjacent frequency synthesis technology; Unable to meet the needs of N+1 TV transmission system

Images