Abstract
A microstrip-to-coplanar waveguide broadside-coupled section is used to replace a 3λ/4-section of the conventional dual-mode 1 λ-ring resonator filter for circuit area miniaturization. It is believed that it is a new idea to incorporate the broadside-coupled section into a ring resonator filter for size reduction. For design purpose, some important characteristics of the broadside-coupled lines are investigated. In experiments, two realized circuits show only 19.4% of the area of a uniform ring. Measured responses show good agreement with simulation.
Original language | English |
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Pages (from-to) | 97-99 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 18 |
Issue number | 2 |
DOIs | |
State | Published - 02 2008 |
Externally published | Yes |
Keywords
- Bandpass filter (BFF)
- Broadside-coupled
- Dualmode
- Miniaturized
- Ring resonator