Abstract
A compact balanced ultra-wideband bandpass filter (BPF) with one sharply notched band is presented in this article. The proposed BPF based on microstrip-to-slotline transition obtains favorable uniform differential-mode response and good common-mode suppression. Moreover, one narrow notched band with a 3 dB bandwidth of 6.8% is realized by introducing one coupled half-wavelength resonator. The fabricated filter has a more than 25% size reduction compared to the designs reported in open literature. The predicted results are compared with measured ones and good agreement is achieved.
Original language | English |
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Pages (from-to) | 1626-1629 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 56 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 2014 |
Externally published | Yes |
Keywords
- balanced
- band-pass filter
- common mode
- differential mode
- ultra-wideband