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Circular-polarized (CP) radiation is found to be a viable choice for imaging/sensing applications by offering faster scan time and robust source-detector alignment compared to linear radiation [1]. Power-efficient generation of a low-noise, high-power mm-wave/THz circular-polarized signal in silicon continues to be a challenging task. Due to limited output power of transistors at mm-wave, power combining...
A technique is developed for representation of any arbitrary linear network as a feedback system. It is based on the fundamental feedback model introduced by Black for systems constituted by unilateral two-port networks. The application of the model is extended to circuits consisting of bilateral two-ports. The system's feedback loop gain for any of the four possible feedback configurations is expressed...
Most of electric circuits can be viewed as a two port network with two terminals defined as input and output ports. In this paper, two different concepts are combined together which are the two port network concept and the fractional calculus to design a general fractional order two port network with equal order. An oscillator case study with three impedances structure has been presented. The three...
A novel slow wave structure (SWS) called sine ridge waveguide (SRWG) has been proposed for a wideband high-power terahertz radiation source. The cold bandwidth of the SRWG is similar to the sine waveguide structure. Meanwhile, the interaction impedance of the SRWG is about 70% higher than sine waveguide at 0.65THz with the same dimensional parameters. Furthermore, it possesses low ohmic losses and...
This paper investigates the general analysis of the three impedance common B oscillators based on two port network. The concept is applied for 12 different impedance structures to obtain a second order oscillator where the condition and the frequency of oscillation are studied for each case. Then three special cases of two-port networks whose transmission matrices contain two non-zero elements are...
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