CAD-oriented, generalised admittance matrix approach for arbitrarily corrugated E-plane sectoral horns

1999 ◽  
Vol 146 (5) ◽  
pp. 329 ◽  
Author(s):  
L.D. Salghetti ◽  
A. Freni ◽  
S. Maci
Keyword(s):  
Matrix Approach ◽  
Admittance Matrix

Generalized $\pi$ Fortescue Equivalent Admittance Matrix Approach to Power Flow Solution

2014 ◽  
Vol 29 (1) ◽  
pp. 193-202 ◽  
Author(s):  
Izudin Dzafic ◽  
Bikash C. Pal ◽  
Michel Gilles ◽  
Sylwia Henselmeyer
Keyword(s):  
Power Flow ◽  
Matrix Approach ◽  
Flow Solution ◽  
Admittance Matrix

Synthesis for Butterworth Filter Using Compact VDTA Based on Sallen- Key Topology

2020 ◽  
Vol 13 (5) ◽  
pp. 681-688
Author(s):  
Yong-An Li
Keyword(s):  
Network Theory ◽  
Current Mode ◽  
Second Order ◽  
Frequency Filter ◽  
Butterworth Filter ◽  
Admittance Matrix ◽  
Floating Capacitor ◽  
A Current

Background: The original filter including grounded or virtual ground capacitors can be synthesized by using the NAM expansion. However, so far the filters including floating capacitor, such as Sallen-Key filter, have not been synthesized by means of the NAM expansion. This is a problem to be researched further. Methods: By using the adjoint network theory, the Sallen-Key filter including floating capacitor first is turned into a current-mode one, which includes a grounded capacitor and a virtual ground capacitor. Then the node admittance matrix, after derived, is extended by using NAM expansion. Results: At last, one VDTA Sallen-Key filter is received. It employs single compact VDTA and two grounded capacitors. Conclusion: A Butterworth VDTA second-order frequency filter based on Sallen-Key topology with fo = 100kHz, HLP = -HBP=1, is designed.

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