A varactor-tuned active microwave bandpass filter
- 1 June 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 2 (6) , 231-232
- https://doi.org/10.1109/75.136515
Abstract
Traditionally, microwave filters have been implemented as passive networks of waveguide, transmission-line, or discrete lumped elements. More recently, microwave active filters have also been realized. A microwave high Q-active bandpass filter is presented. using a varactor diode for tuning, and an active component giving a substantial increase in Q of the resonant sections of filter. High-Q filter elements offer low-filter insertion loss and also yield sharp passband corners, which cannot be achieved by lossy filter and amplifier combination.Keywords
This publication has 3 references indexed in Scilit:
- An Active Microwave Filter with Dielectric ResonatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A varactor-tuned, active microwave band-pass filterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Narrowband planar microwave active filterElectronics Letters, 1989