Do you be used for TDD two -way converter of LTE system

• Main Authors: XIE AMING, CHEN YOUXU
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2017
• Subjects: BASIC ELECTRONIC CIRCUITRY; DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER; ELECTRICITY

The utility model belongs to the technical field of the electron, in particular to do you be used for TDD two -way converter of LTE system. The utility model discloses an intermediate frequency input, the radio frequency output of two -way converter are regarded as respectively to digit up converter module and digital down conversion ware module, the input of digital up converter module, output, input, the output of digital down conversion ware module are held as radio frequency input end, the intermediate frequency output of this two -way converter respectively, same voltage controlled oscillator subassembly is all connected to numeral up converter module and digital down conversion ware module, and digital down conversion ware module is the same with the circuit structure of digital up converter module, and attenuation unit of digital down conversion ware module and the 2nd attenuation unit are pi type attenuator, and the mixing unit includes balanced mixer, has fine digital down conversion 1 to local oscil