Thứ sáu, 25/04/2025 | 11:06 GMT+7
A NEW METHOD FOR IMPROVING POWER HANDLING CAPACITY OF COAXIAL CAVITY FILTER IN 5G TRANSCEIVER Abstract: In this paper, a novel structure of resonator is proposed to improve the power handling of cavity filter. In which, the conical cone with open bottom at the top is added to the top of resonator and the self-coupling screw is blended with a radius of 1 mm. Because the contact area of screw and resonator is reduced, the electrical field strength maximum value in the single cavity resonator can be reduced. From that, power handling capacity can be improved significantly. Electrical field in cavity filter is simulated and evaluated when changing the cone angle. This field strength is minimum at the cone angle of approximately 30o, and reduced to 32,6% comparing with the old structure. The proposed structure is applied to design one 5G transceiver base station in the frequency range 3600 to 3800 MHz. The power handling of cavity filter can reach 1028,85W, improve 346,4W comparing with the old resonator. Keywords: Cavity filter, resonator, power handling, 5G transceiver base station. |
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03/04/2025