Design of Ultra Wideband Bandpass Dual Band Filter Using Defected Ground Structures
Keywords:
Dual band, defected ground structure, bandpass filter, microstrip, widebandAbstract
This paper presents a novel approach for
designing
compact and ultra wideband filter with
independently controlled central frequencies. The structure
consists of a microstrip line and two defected ground structure
cells that are imbedded together. Each of the cells results in
respective passband, outer cell for the first passband and inner
one for the second passband. By changing dimensions of the
resonators the central frequency of two passbands can be
independently regulated in a wide range. Several attenuation
polls in the stopband are realized that improve the isolation
between two passbands. A 1.8GHz, 3.3GHz dual band filter is
designed and simulated with fractional bandwidth of 43% and
15%.
Downloads
Downloads
Published
Issue
Section
License
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
