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CRL713 Fundamentals of RF Electronics

3 credits (2-0-2)

Mathematical foundation in understanding of signal, microwave circuits, and devices: Phase diagrams,duality, superposition, miller, Thevenin and Norton Theorems, instantaneous,average, complex power their representation nomenclature, Fourier series, Laplace, Fourier and Z transforms, convolution, correlation and basic properties of Fourier transforms,transmission line theory, T and IT equivalent circuit, behavior of transmission line at radio frequency. Physics and operation of bipolar, and MOS structures. DC and Low Frequency Circuit Concepts: BJT Biasing, mode of operation small signal AC analysis. FET circuits at DC, AC analysis, first and second order AC models of FETs, high frequency models of BJT and FETs, single pole approximation, differential amplifiers, and frequency response,Circuit Representation of Two Port RF/ Microwave Networks. :Impedance,Admittance, Hybrid, Transmission Matrix, Generalized S parameters, Reciprocal Networks, Loss less Networks, Signal Flow graphs and its Applications, Gain Consideration in Amplifiers, Impedance Matching and network selection: power gain concept, mismatch factor, return loss, input/output VSWR, maximum gain, constant gain design, figure of merit,matching network design using lumped and distributed elements, stability consideration in active networks. Baseband and Pulse Signaling: Sampling, quantizing and encoding, digital Signal formats: binary coding, differential coding, bit synchronization, multilevel signaling, intersymbol interference,differential pulse code modulation, delta modulation time division multiplexing,pulse time, pulse width, pulse position modulation, Amplitude and Frequency Modulation: Amplitude modulation, Double sideband suppressed carrier, Asymmetric sideband sigals, phase/ frequency modulation, narrowband angle modulation wideband frequency modulation. Band pass Digital Signaling:( OOK, BPSK, DPSK), multilevel signaling (QPSK, MPSK, QAM), minimum-shift keying (MSK) and comparison of band pass digital signaling systems, band pass sampling, filtering and linear distortion.

Practicals: Design, simulation (P spice),realization and characterization of high gain differential amplifier used in the first stage of an operational amplifier. This will involve design and simulation of a current source, extraction spice parameters, gain characterization etc., Comparison of coding schemes, selfcorrecting codes, assembly language programming, operation a system in a closed loop for investigating the matched filtering performance, detecting the signal in a noisy environment. The already developed for RF Identification will be used for this experiment, Design fabrication and characterization of an RF antenna.

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