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박석홍,손영찬,유상대 ( Seog Hong Park,Yeong Chan Son,Sang Dae Yu ) 한국센서학회 1996 센서학회지 Vol.5 No.4
This paper presents the optimal design method of SAW filters with arbitrary frequency characteristics. The design program using the unconstrained nonlinear optimization method and FFT algorithm is developed for optimal design of SAW filters with arbitrary frequency characteristics. As a design example, a SAW TV IF filter with asymmetric-amplitude and nonlinear-phase frequency characteristics is designed.
손영찬(Son Yeong Chan),박석홍(Park Seog Hong),유상대(Yu Sang Dae) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.12
Due to the high density of integration and the high performance in current integrated circuit, it is more emphasized to verify the electrical connectivity and performance of the circuit extracted from the layout. In this paper, we propose a new algorithm to extract the netlist including the geometric parameters of MOSFETs and the parasitic resistance and capacitance values. Where a set of polygon blocks for routing wires in the layout are described with directional edges and the layout extraction is carried out by checking over the abutment of these blocks on MOSFETs.