The Research And Design Of Ku Band Tile-type TR Module

Today,with the rapid development of electronic information technology,both civil and military fields require ever-increasing demands for communication technology.In the communication technology,millimeter-wave technology and low-temperature co-fired ceramic technology have received more and more attention.Millimeter wave is a wave band between the light wave and the microwave,and has the characteristics of short wavelength,wide frequency band,narrow beam,high angular resolution,and strong anti-interference ability.Low-temperature co-fired ceramic technology is a highly integrated packaging technology in multi-chip modules.Combining the characteristics of millimeter-wave technology and low-temperature co-fired ceramic technology,it is possible to develop a transceiver component with high performance and high integration.In this paper,domestic microwave chip is used to design a Ku-band tile-type transceiver.It has the characteristics of small size,low noise and high gain.The main work of this paper is as follows:First of all,the paper introduces the research status of transceiver components and briefly explains the significance of the research.Then this paper introduces the low-temperature co-fired ceramic technology and process steps,the characteristics of the tile-and-brick structure of the transceiver components;Based on the transmission line theory,low temperature co-fired ceramic technology and reference design specifications,the Ku-band microstrip line was designed.Vertical interconnect through holes and key alloy wire structure parameters have good transmission characteristics.The paper designs four types of passive devices,including:step impedance modified low-pass filter,Wilkinson power divider,Lange coupler and waveguide-microstrip transition structure.Improvements to the open resonant ring step-impedance low-pass filter have a steep cut-off characteristic and a flat pass band.The Wilkinson power divider and Lange coupler can work with the amplifier and have good Ku-band transmission characteristics.Simulations verify that the E-surface structure of the microstrip probe is more suitable for tile component design.Finally,a tiled Ku-band transceiver component was designed using a frequency conversion superheterodyne structure.Through ADS simulation,the system schematic diagram is simulated for the transceiver component,and the passive and active modules in the paper were subjected to layout simulation analysis.Then the system schematic and layout were jointly simulated.Finally,a tile-type Ku-band transceiver based on low-temperature co-fired ceramic technology was determined,uses a 12-layer substrate structure with a component size of 35×16×14 mm~3,and a receive branch gain of 40.2 dB in the operating frequency range of 15-16 GHz,noise figure 1.79 dB,emission branch gain 39.3 dB,output power 0.55 W.This component has a small size,low noise,high gain characteristics.