270-678MHz frequency hopping filter

• Main Authors: CAI CHUCAI, ZHU YAOZHEN
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2020
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

The invention relates to a 270-678MHz frequency hopping filter, a cathode of a PIN diode is welded to a mounting station, and the cathode of the PIN diode directly dissipates heat at the mounting station of a metal structure, so that the heat dissipation capability of the PIN diode can be remarkably improved, and the power capacity of the frequency hopping filter is improved; a negative high-voltage cut-off mode is provided, so that a technician can quickly and accurately realize connection between the PIN diode and a driving circuit of the PIN diode during welding, the conduction rate of thePIN diode is improved, and the damage rate of the PIN diode is reduced; and a low-pass filter is arranged to filter second, third and fourth harmonics of a pass band of 270-678MHz, so that the harmonic suppression capability of the frequency hopping filter reaches -65dB. 本发明提出了一种270-678MHz跳频滤波器，PIN二极管的阴极焊接到安装工位上，PIN二极管的阴极直接在金属结构的安装工位散热，能显著提升其散热能力，对跳频滤波器的功率容量有提升；提供一种负高压截止的方式，方便技术人员在焊接时，可以快速准确实现PIN二极管与其驱动电路的连接，提高PIN二极管导通率，降