Varactor-tuned active bandpass filter with low noise performance

Electronics Letters

Volumn 40, Issue 15, 2004, Pages 945-946

  Kim, B W ^a   Chun, Y H ^b   Yun, S W ^a  

^a Sogang University   (South Korea)

^b Dongguk University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

BANDWIDTH; ELECTRIC INDUCTORS; FEEDBACK; MICROWAVE FILTERS; RESONATORS; SPURIOUS SIGNAL NOISE; TRANSISTORS; TUNING;

COUPLING VARACTOR DIODE; MICROSTRIP COMBINE NETWORK; NEGATIVE RESISTANCE METHOD; PASSBAND INSERTION LOSS;

BANDPASS FILTERS;

EID: 3843151482     PISSN: 00135194     EISSN: None     Source Type: Journal    
DOI: 10.1049/el:20045109     Document Type: Article

References (4)

1. Adams, D.K., and Ho, R.Y.C.: 'Active filters for UHF and microwave frequencies', IEEE Trans Microw. Theory Tech., 1969, 17, (9), pp. 662-670
2. Chandler, S.R., and Hunter, I.C.: 'Active varactor tunable bandpass filter', IEEE Microw. Guid. Wave Lett., 1993, 3, (3), pp. 70-71
3. Cheng, K.M., and Chan, H.: 'Noise performance of negative-resistance compensated microwave bandpass filters-theory and experiments', IEEE Trans. Microw. Theory Tech., 2003, 49, (5), pp. 924-927
4. Lee, J., Chun, Y., and Yun, Y.: 'A novel bandpass filter using active capacitance', IEEE MTT-S Int. Microw. Symp. Dig., 2003, pp. 1747-1750