Research On 3mm Millimeter Wave Integrated Transceiver

W-band is an important window requency for millimeter-wave, and the transceiver technology research of this band is currently a hot topic in this field. Based on the requirements of technical index, the theory and design of 3mm integrated transceiver module are discussed in this dissertation. Designs and processing and measurements of this system which is based on the technology of hybrid integration are presented.In chapter one, a brief introduction of characteristics and application of millimeter wave and the domestic and international recently development of millimeter-wave are presented. Then, content of this research and design of this transceiver are given.In chapter two, we present a brief introduction of the basic theory and technical indexes of radar. On basis of the transceiver module theory and index, we put forward the preliminary design of local oscillator link and transmitting link and receiving link.In chapter three, the theory of microstrip line and waveguide to microstrip transition and a Wilkinson power divider which are used in this component are introduced. According to the requirements, we designed a waveguide to microstrip probe transition which has a good performance with the S21 is less than 1dB. According to the theory of Wilkinson power divider, we finished the designs and measurement of a 3mm Wilkinson power divider, which has a poor isolation. In order to overcome this shortcoming, we adopted two same drive power amplifiers connected to each output port of the power divider, for it can not only improve the isolation of the 3mm Wilkinson power divider, but also satisfy the input power for the receiver or transmitter mixer.In chapter four, the theory of solid state circuit related to this project, such as the low noise amplifier, power amplifier, and mixer are introduced. Then, we choose some suitable MMICs according to the design and index distribution to build the transceiver system.In chapter five, we determined the final design scheme according to the design of passive circuit and the MMICs that have been chosen. The metal cavity, microstrip circuit, and the DC power supply circuit are designed and processed. Then, we completed the fabrication and testing of the transceiver.In the last chapter, we summarized the content of this paper and analyzed the measurement results in detail.