Abstract
This letter presents a tunable bandstop filter with the capability of controlling the shape of the frequency response. The proposed filter structure can be tuned to have either a Butterworth or a Chebyshev response. The filter can also be tuned to have different center frequencies. Both the frequency response and the center frequency of the filter can be tuned by only adjusting the resonant frequency of each resonator without controlling inter-resonator coupling. Since the proposed filter structure has non-zero inter-resonator coupling, it can find its future application in reconfigurable filters which can be tuned to exhibit either a bandstop or a bandpass response.
| Original language | English |
|---|---|
| Article number | 5613953 |
| Pages (from-to) | 669-671 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 20 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2010 Dec |
| Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received May 12, 2010; revised August 04, 2010; accepted September 14, 2010. Date of publication November 01, 2010; date of current version December 03, 2010. This work was supported by the Defence Advanced Research Projects Agency Analog Spectral Processors Grant. The authors are with the School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907 USA (e-mail: [email protected]). Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LMWC.2010.2080669
Keywords
- Bandstop filter
- Butterworth filter
- Chebyshev filter
- filter synthesis
- resonator filter
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering