Title :
Simplified P1dB estimation of active bandpass filters
Author :
Cho, Yong-Ho ; Hong, Song-Cheol ; Kwon, Young-Se
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
1/1/1999 12:00:00 AM
Abstract :
In this letter, we propose a simple and accurate equation for the estimation of the 1-dB power gain compression point (P1dB) in the active bandpass filter. The derivation of the equation is performed on the assumption of a nonlinear parallel conduction model of the active resonator used in the filter. The P1dB´s of two- and three-stage bandpass filters calculated from the proposed equation show very good agreement with the data obtained in a commercially available microwave circuits simulator. A P1dB enhancement technique based on this equation is also described
Keywords :
active filters; band-pass filters; microwave filters; resonator filters; active bandpass filter; microwave circuit; nonlinear parallel conduction model; power gain compression point; resonator; Active filters; Band pass filters; Circuit simulation; Degradation; FETs; Frequency; Linearity; Microwave devices; Nonlinear equations; Resonator filters;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
