Research On W-band Planar Hybrid Integrated FMCW Source

As one of the core components of millimeter wave system, usually the performance of the millimeter-wave source determines the quality of the whole system. We can use frequency multipliers and amplifiers to obtain the millimeter-wave from the micro-wave source,the method is easy and reliable, and become more and more popular among the engineers. Nowadays the research on the low part of millimeter-wave frequency for example Ka-Band is more and more mature, but the progress of the research on the high part of the millimeter-wave frequency for example W-band is a little slow. In this paper we focus on the millimeter-wave multiplier and amplifier part. V-band, E-band and W-band multiplier and amplifier parts are developed based on the HMIC technology. And based on the foundation of these research, a W-band FMCW emitter was desgined and tested.The main design progresses of this paper are as follows: firstly a brief theory of the frequency multipliers and amplifiers was introduced, then according to the indicator of each modules and the performance of the suitable components, the origin schemes were given, after a detailed analysis and comparison, the final schemes were determined; And then the V-band, E-band and W-band multiplier and amplifier modules were designed and tested carefully; After that, the W-band FMCW emitter was designed and tested based on the previous study of the modules. In the end, the problems and weak points which founded in the design and measurement process were summarized, and the solutions and advices were proposed aimed at those shortcomings to make the whole system works better.The main research works in this paper were summarized as follows:1. A V-band, E-band and W-band multiplier and amplifier modules were designedand tested, the measurement shows that the output power of the three moduleswere above 13 dBm on condition that the input power ranges from 0dBm to3dBm;2. A W-band FMCW emitter was designed and tested and the tested data showsthat the three W-band signal output power were greater than 13 dBm, and theflatness of each route were litter than 3dB;3. An improved measurement system was proposed aimed at the shortcomings in the original system to make the whole test system easier and more efficient.