Abstract
New formulas are proposed for designing wideband parallel-coupled microstrip bandpass filters with improved prediction of bandwidth. When a fractional bandwidth Δ is required, a correction θ = (π/2)(1 ± Δ/2)is incorporated into the formulation for determining the dimensions of each coupled stage. Two filters with Δ -50% are designed and fabricated to show the improvement. The measurement shows a very good agreement with the simulation.
Original language | English |
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Pages (from-to) | 231-233 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 14 |
Issue number | 5 |
DOIs | |
State | Published - 05 2004 |
Externally published | Yes |
Keywords
- Parallel-coupled filter
- Wide bandwidth