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Quadrature generation techniques in CMOS relaxation oscillators
2012 IEEE International Symposium on Circuits and Systems, 2012Shunt and series-coupling techniques for quadrature generation are applied to CMOS relaxation oscillators. The 2.4GHz quadrature oscillators are designed and simulated in a UMC 0.18µm CMOS process. The shunt-coupled oscillator consumes a current of 12mA from a supply of 1.8V and achieves a phase noise of −99.4dBc/Hz @ 1MHz offset.
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Numerical Quadrature for Bessel Transformations with High Oscillations
2009We explore higher order numerical quadrature for the integration of systems containing Bessel functions such as $\int_a^b f(x)J_{\nu}(rx)dx$ and $\int_a^b f(x)\cos(r_1x)J_{\nu}(rx)dx$. The decay of the error of the these methods drastically improves as frequency grows.
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Quadrature error of two-integrator oscillators
2014 IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS), 2014João Casaleiro +2 more
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Analysis and design of an optimally coupled 5-GHz quadrature LC oscillator
IEEE Journal of Solid-State Circuits, 2002Pepijn Van De Ven +2 more
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Single CDTA-based current-mode quadrature oscillator
AEU - International Journal of Electronics and Communications, 2012Chunhua Wang, Jie Jin
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