About MUTO KOJI
About 長崎大学教育学部紀要 自然科学
About active filter
About operational amplifier
About low pass filter
About highpass filter
About resistor
About condenser(capacitor)
About RC circuit
About VLF
About cutoff frequency
About S-matrix
About scattering matrix
About General
About 低域
About 高域
About 超低周波
About 遮断周波数