Abstract
This letter demonstrates an electronically reconfigurable
microstrip dual-mode filter with nonuniform Q lossy
technique. Varactors are used for continuous tuning of the
bandwidth and center frequency. By deploying nonuniform Q
distribution on the dual-mode open-loop filter, passband flatness
is improved by loading resistors on the even–odd symmetrical
plane of resonators. Coupling matrix is used to describe the
tunable lossy filter. Design of this type of four-pole tunable lossy
filter is presented and validated experimentally.
microstrip dual-mode filter with nonuniform Q lossy
technique. Varactors are used for continuous tuning of the
bandwidth and center frequency. By deploying nonuniform Q
distribution on the dual-mode open-loop filter, passband flatness
is improved by loading resistors on the even–odd symmetrical
plane of resonators. Coupling matrix is used to describe the
tunable lossy filter. Design of this type of four-pole tunable lossy
filter is presented and validated experimentally.
Original language | English |
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Pages (from-to) | 1002-1004 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 28 |
Issue number | 11 |
Early online date | 5 Oct 2018 |
DOIs | |
Publication status | Published - Nov 2018 |