Research On 6-18GHz T/R Module And The Technology Of Amplitued-Phase Consistency

The design of T/R module is the key technology of phased array research,to satify the need of 6-18 GHz ultra-wideband and no grating lobe at the high frequency in the 2D-scanning,miniaturization of T/R component is the inevitable choice.This paper has designed a transceiver commom phase shifter chip based on the LTCC multilayer substrate and MCM assembly technology,it works at 6-18 GHz and the output power reaches 34 dBm whose size reach engineering application level.With the technical requirement,we demonstrate the overall scheme of the component,study on the structure of component implementation,choose the appropriate chip to study the structure of the T/R component,analysis the problem of component implementation,carry out the physical model and at last the measured results are given.The receiving channel and the transmiting channel shares the phase shifter chip the transmiting channel in the composition of driver amplifier,high power combining network and the receiving channel is mainly composed of a limiter,low noise amplifier,digital attenuator.The T/R component for receiving and transmitting shares the phase shifter,works at a different time,realized by SPDT,different functional modules achieved by the MMIC chip are connected by a transmission line.we can cut down the number of the chip,reduce the size of components by MCM assembly technology.We set the model of S-parameter to study the circuit parameters influence to the T/R module amplitude and phase consistecy and the sensitivity analysis,besides,the amplitude and phase infuence to the power synthesis technology and multilayer circuit board and how to guarantee indices during the precess of the assembly and bebugging have also be studied.What's more,the difficulty of microwave MCM model design and multilayer board wiring technology has also been studied.The use of broadband power synthesis technology,high power output of T/R component can acheived,while exploring the microwave power unit heat,low work efficiency to solve the T/R component lead consumption problem.