A 10 GHz inductorless active SiGe HBT lowpass filter
High-frequency (around 10 GHz) filters are necessary for many applications, in anti-aliasing filters for high-speed data converters or optical communications. Modern SiGe technology allows implementing radio-frequency circuits up to about 100 GHz. At the lower frequencies around 10 GHz, the size of passive components is a concern, and inductorless designs are used. We present a topology for an