The Key Components Design of 24 GHz Frequency Modulated Continuous Wave Radar system
Date Issued
2009
Date
2009
Author(s)
Chang, Chia-Hao
Abstract
This thesis proposes several RF component application for K-band frequency-modulation continuous-wave (FMCW) radar system in 0.18 μm CMOS process. Design one low power consumption LNA and two low power consumption active quasi-circulator at 24 GHz.he power consumption of LNA is reduce by use body bias technique. This LNA chipchieves a peak gain of 15.8 dB and a noise figure of 3.2 dB at 24 GHz. The supply voltagend supply current are 0.7 V and 3.8 mA, respectively. The input and output return lossre lower than −10 dB. The input third-order intercept point IIP3 is −11 dBm. The chipize is 0.69 mm × 0.55 mm.irculators are basic three-port nonreciprocal module used in microwave and millimeterystems to separate electromagnetic signals in different paths. Active circlulator have lownsertion loss, small size, and can easily integrated with other modules. In this thesis proposeswo active quasi-circulator In the design 1, the insertion loss in the PA - antenna path isamp;#8722;3.2 dB, and that in the antenna - LNA path is −3.9 dB. The isolation between the LNAnd PA ports is −36 dB, and the dc power consumption is 8.4 mW. The chip size is 0.89mm × 0.52 mm. In the design 2, the insertion loss in the PA - antenna path is −1.2 dB, andhat in the antenna - LNA path is −4.2 dB. The isolation between the LNA and PA ports isamp;#8722;31 dB, and the dc power consumption is 11.8 mW. The chip size is 0.52 mm × 0.64 mm.
Subjects
FMCW
Type
thesis
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