| Autor: |
Mercier, Denis, Orlianges, Jean-Christophe, Delage, Thierry, Champeaux, Corinne, Catherinot, Alain, Cros, Dominique, Blondy, Pierre |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Microwave Theory & Techniques; Apr2004, Vol. 52 Issue 4, p1175-1181, 7p, 4 Diagrams, 6 Charts, 13 Graphs |
| Abstrakt: |
Distributed microelectromechanical varactors on a coplanar waveguide have been used to design a two- and four-pole bandpass tune-all filters. The two-pole initial bandwidth is 6.4% at 44.05 GHz with a mid-band insertion loss of 3.2 dB and with matching better than 15 dB. The four-pole initial bandwidth is 6.1% at 43.25 GHz with a mid-band insertion loss of 6.5 dB and with matching better than 10 dB. The use of microelectromechanical system bridges allows a continuous tuning for both center frequency and bandwidth. The varactors biasing network has been designed so that the center frequency and bandwidth can be tuned separately. The two-pole filter center frequency can be changed from 44.05 to 41.55 GHz (5.6% tuning range), while the bandwidth can be independently changed from 2.8 to 2.05 GHz. The four-pole filter center frequency can be changed from 43.25 to 40.95 GHz (5.3% tuning range) and the bandwidth can be changed from 2.65 to 1.9 GHz. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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