Comparison of noise properties of various microwave active filters

Author

Zaitsev, A. ; Kapilevich, B.

Author_Institution

Siberia State Univ. of Telecommun. & Informatics, Novosibirsk, Russia

fYear

2001

fDate

2001

Firstpage

92

Lastpage

98

Abstract

In this paper, five topologies of microwave active filters (MAFs) are studied. We have considered MAFs proposed earlier in the class of filters with compensation for loss. First we have investigated theoretically the noise properties of various approaches to compensate for losses in microwave resonators. Then five third order microstrip active filters were simulated to validate a choice of the best configuration. It was shown that the use of negative resistance with minimized noise measure gives a reduced noise figure under the same conditions

Keywords

active filters; compensation; hybrid integrated circuits; integrated circuit noise; losses; microstrip filters; microstrip resonators; microwave filters; microwave integrated circuits; negative resistance; MIC; RT Duroid substrate; loss compensation; microwave active filters; microwave resonator loss; minimized noise measure; negative resistance; noise properties; third order microstrip filters; Active filters; Active noise reduction; Electrical resistance measurement; Microstrip filters; Microwave filters; Noise figure; Noise measurement; Noise reduction; Resonator filters; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Electronics: Measurements, Identification, Application Conference, 2001. MEMIA 2001

Conference_Location

Novosibirsk

Print_ISBN

0-7803-6743-X

Type

conf

DOI

10.1109/MEMIA.2001.982328

Filename

982328