## Abstract A novel defected ground structure (DGS) feedline element with two transmission zeros and flat passband is proposed. The zeros can be tuned individually by the DGS geometry to improve the low order filter's selectivity. A traditional microstrip parallel coupledβline bandpass filter casca
Coupling control in microstrip lines using nonuniform bidefected ground structures
β Scribed by Haiwen Liu; Zhengfan Li; Xiaowei Sun
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 92 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0895-2477
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## Abstract Originally published Microwave Opt Technol Lett 50: 911β915, 2008. Β© 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2747, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23704
## Abstract The introduction of defected ground structures (DGSs) in microwave bandpass filters, based on microstrip coupledβring resonators to suppress higher harmonics, is investigated. Two topologies based on placing DGS units into and out of the coupled rings are considered and investigated. Ha