Lancheros SepĂșlveda, Estefany M.

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    Design and simulations of an integrated 9.41 ghz 24 channels phased array synchronization by phase locked loop for dual polarized doppler solid state radar for casa student test bed
    (2012) Lancheros SepĂșlveda, Estefany M.; RodrĂ­guez SolĂ­s, Rafael A.; College of Engineering; Cruz-Pol, Sandra L.; Colom UstĂĄriz, JosĂ© G.; Department of Electrical and Computer Engineering; JimĂ©nez GonzĂĄlez, HĂ©ctor
    The design and simulations of an integrated 9.41 GHz- 24 channel passed array synchronization by phase looked loop for dual polarized Doppler solid-state radar for the CASA student Test Bed is presented in this thesis. The synchronization module is designed using discrete commercial components with low residual phase noise, low current, low power consumption and low cost. Several architectures for Distribution Local Oscillator (LO) based in PLL are analyzed its advantages and its limitations in terms of amplitude, frequency and phase stability, lower power consumption and lower cost. Active filter loop is designed according to the required loop bandwidth and phase margin which are critical factors in the contribution of deterministic phase noise of various sources in the LO generation. The synchronization module maintain phase, amplitude and frequency stability and purity in a 24 channel system for a dual polarized, Doppler, solid state radar for the Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) Student Test Bed. This is the second stage in building the Solid State Off the Grid radar (SsOTG). The SSOTG is designed to operate at X-band frequency and have a 24 channel system. The full design is completed on a Rogers TMM10i substrate which has a permittivity of 9.8 and a thickness of 0.635 mm. The layout and simulations are carried out using Agilent's Advanced Design System (ADS).