Dielectric filter is transferred to small -size electricity that absolute bandwidth is invariable
The utility model relates to a dielectric filter is transferred to small -size electricity that absolute bandwidth is invariable, constitute by two resonance circuit that parallel in the wave filter,resonance circuit includes coaxial dielectric resonator (1), microstrip line (2), varactor (3), conde...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a dielectric filter is transferred to small -size electricity that absolute bandwidth is invariable, constitute by two resonance circuit that parallel in the wave filter,resonance circuit includes coaxial dielectric resonator (1), microstrip line (2), varactor (3), condenser (4), resistor (5), inductor (6), coaxial dielectric resonator (1) bottom ground connection, the top links to each other with microstrip line (2) through the lead wire, microstrip line (2) top is provided with condenser (4), the outside is passed through inductor (6) and is connected with SMA joint (7), condenser (4) top is connected with varactor (3), varactor (3) top ground connection, be provided with between condenser (4) and varactor (3) resistor (5), resistor (5) are connected to theDC voltage. This electrically tunable filter has the miniaturization simultaneously, temperature stability is high, the bandwidth is invariable, consequently has wide market prospect.
本实用新型涉及种绝对带宽恒定的小型电调介质滤波器，所述滤波器内由两个并列的谐振电路构 |
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