Abstract
A novel microstrip ultra-wideband (UWB) differential filter with narrow notched band based on the transversal signal- interference concept is presented. In order to enhance the interference immunity from undesired signals efficiently, the notched band is implemented by coupling with quarter wavelength shorted-line at input and output ports. By taking advantage of the bandgap characteristic of defected ground structure (DGS), a slot-line DGS is used for improving the common-mode rejection. In this work, at the center frequency of the notched band which is 2.45 GHz, about 7.3% bandwidth (2.35-2.53 GHz) is realized by full-wave simulator. Agreement between experiment and simulation is observed. © 2012 IEEE.
| Original language | English |
|---|---|
| Pages (from-to) | 185-187 |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 22 |
| Issue number | 4 |
| Online published | 20 Mar 2012 |
| DOIs | |
| Publication status | Published - Apr 2012 |
Research Keywords
- Defected ground structure (DGS)
- differential-/common-mode
- notched band
- shorted parallel coupled-line
- transversal signal-interference
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