Some Prominent Characteristics of the Modified Elliptic Low-Pass Function |
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Authors: | J C Ahn C H Yun S W Choi D Y Kim D H Rho |
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Affiliation: | (1) Electronics and Telecommunications Research Institute, 161 Kajong-Dong, Yusong-Gu, Taejon, 305-350, Korea;(2) Department of Information and Communications Engineering, Woosuk University, Wanju, Chonbuk, 565-701, Korea;(3) Electrical Circuits and Systems Research Institute, Chonbuk National University, Chonju, Chonbuk, 561-756, Korea |
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Abstract: | A modified elliptic low-pass filter function with progressively diminishing ripples in both the passband and the stopband is proposed and analyzed. The modified elliptic function is realizable by the passive doubly-terminated ladder network for the order n even or odd, thus lending themselves amenable to high-quality low-sensitivity active RC or switched capacitor filters through the simulation techniques. Besides the passive ladder network realization, the modified elliptic function has improved characteristics both in the frequency domain and the time domain as compared with the classical elliptic function. In addition, the modified function exhibits better magnitude sensitivity properties than the classical function. |
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Keywords: | modified elliptic function progressively diminishing ripple passive doubly-terminated ladder network sensitivity |
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