| 摘要 |
PURPOSE: A hair pin type variable resonator using a micro-strip line is provided to change a total resonant frequency of the hair pin type resonator by connecting the varactor diode with an open terminal of a coupling part and varying a value of a capacitor according to a voltage of a varactor diode. CONSTITUTION: A plurality of varactor diodes(VD1,VD2) are connected to an open terminal(A) of a coupling part of a hair pin type resonator in order to give a characteristic of a variable frequency. The hair pin type resonator is formed by giving an internal coupling to an existing coupling structure using a micro strip line. The hair pin type resonator can control impedance and vary a resonant frequency by using the varactor diodes(VD1,VD2). The hair pin type resonator has a stable filtering characteristic since the hair pin type resonator can vary the resonance frequency.
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