Abstract
In this letter, a novel microstrip parallel-coupled line structure with two asymmetric loading stubs is proposed for notched band implementation in ultra-wideband (UWB) bandpass filter (BPF). The rejection band is introduced by adding asymmetric loading stubs to the two outer arms of three parallel-coupled lines. The lengths and the widths of the stubs can control the bandwidth of the notched filter and can set the notched band at a desired frequency. This structure has been applied to a single-stage UWB BPF in order to produce a narrow notched band inside its passband. The design is successfully realized in theory and verified by full-wave electromagnetic simulation and the experiment. © 2007 IEEE.
| Original language | English |
|---|---|
| Article number | 4266849 |
| Pages (from-to) | 516-518 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 17 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2007 |
Keywords
- Multiple-mode resonator filters
- Notched filters
- Parallel-coupled line filters
- Ultra-wideband (UWB) bandpass filters (BPFs)