Microwave device radio frequency circuit and transmitting and receiving interval regulating method for the circuit

Abstract

The embodiment of the invention provides a microwave equipment RF circuit and a TR interval adjusting method of the microwave equipment RF circuit. The microwave equipment RF circuit comprises a transmitting chain and a receiving chain; a first transmitting frequency-mixing unit and a second transmitting frequency-mixing unit are connected in series between a transmitting signal input terminal and a transmitting signal output terminal of the transmitting chain; a first receiving frequency-mixing unit and a second receiving frequency-mixing unit are connected in series between a receiving signal input terminal and a receiving signal output terminal of the receiving chain; the second transmitting frequency-mixing unit is connected with a first local oscillation unit; and the first receiving frequency-mixing unit is connected with a second local oscillation unit. When the embodiment processes transmitting signals through secondary frequency-mixing treatment and processes receiving signals through primary frequency-mixing treatment, the frequency-mixing is carried out through mutually independent local oscillations, the output frequencies of the two independent local oscillations are adjusted through software, the purpose for adjusting the TR interval of the microwave equipment RF circuit can be served, the same sort of microwave RF components can support multiple TR intervals at the same time, and the sorts of the microwave RF components are reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of microwave and radio frequency technologies, and in particular to a radio frequency circuit of a microwave device and a method for adjusting the transmitting and receiving interval of the radio frequency circuit of the microwave device. Background technique [0002] Microwave transmission equipment uses the microwave frequency band to transmit signals, and the use of microwave frequencies must comply with the provisions of the ITU-R international standard or the local standards of each country / region. Microwave transmission equipment is used in pairs, a pair of microwave equipment is called a hop, and the transmission of services between a hop microwave equipment is bidirectional, and the two directions must use different microwave frequencies to avoid interference. The difference between them is called the Transmmiter and Receiver Interval (hereinafter referred to as the TR interval). For any ...

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Problems solved by technology

[0004] The embodiment of the present invention provides a radio frequency circuit of microwave equipment and a method for adjusting the transmission and reception interval of the radio frequency circuit of microwave equipment, which are used to solve the defects in the prior art that the radio frequency circuit of microwave equipment has a fixed transmission and reception interval and limited application range, and realize the transmission and reception of the radio frequency circuit of microwave equipment Flexible adjustment of interval

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