Design of Mixer and Dielectric Resonator Oscillator for X-band FMCW Radar System
碩士 === 國立臺灣大學 === 電信工程學研究所 === 94 === In this thesis, firstly, a MICROMIXER for X-band FMCW radar application is realized in 0.18μm CMOS process. At circuit level, circuit and layout technique to improve the isolation are discussed. At device level, the synthetic guiding structure complementary-cond...
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| Format: | Others |
| Language: | en_US |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/16975912143297540016 |
| Summary: | 碩士 === 國立臺灣大學 === 電信工程學研究所 === 94 === In this thesis, firstly, a MICROMIXER for X-band FMCW radar application is realized in 0.18μm CMOS process. At circuit level, circuit and layout technique to improve the isolation are discussed. At device level, the synthetic guiding structure complementary-conducting-strips (CCS) transmission line and transmission line inductor are employed to the mixer. In addition, the design and characterization of downconversion mixer are described.
Secondly, an X-band dielectric resonator oscillator using MMIC fabricated by 0.18μm CMOS process is presented. The novel circular line DRO used to replace the conventional straight line DRO features higher loaded Q. This circuit demonstrated a low noise of -118dBc/Hz at offset frequency of 100 KHz. Field analysis help in finding optimized DR coupling circuit that DR would be coupled to achieve better phase noise.
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