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A Ka-band low temperature co-fired ceramic (LTCC) transceiver is demonstrated in this paper. The proposed module is composed of several bare monolithic microwave integrated circuits (MMIC) and passive circuits. These MMICs including LNA, phase shifter, attenuator, SPDT switch, driver amplifier, power amplifier have been mounted onto LTCC substrate. The passive circuits like bandpass filter and waveguide...
This paper presents a new algorithm for rapid estimating inter-area oscillation(IAO) mode shapes and corresponding modes using correlation analysis(CA). It firstly extracts a weak damping component strongly associated with objective mode from each tie-line active power signal came from WAMS(Wide Area Measurement System), through a low-pass or band-pass filter which is designed by a priori modal knowledge...
Based on the concept of space vector, an adaptive detecting method for fundamental positive and negative sequence components and harmonic components is proposed in this paper, and a detailed theory analysis has also been done. The results show that for fundamental component detecting loop, the proposed adaptive detecting method is equivalent to an ideal second order band-pass filter, while for harmonic...
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