匹配阻抗;
The four stages power amplifier is using tree type network for power combination. Four paralleled transistors are matched with load-pull impedance at the last stage for maxium output power.
功率放大器采用4级放大,树状功率合成网络,末级是4个晶体管并联并按负载牵引匹配,在单片上获得尽可能大的功率输出。
Considering the relationship between the characteristic impedances of odd-and even-mode, the port impedance of nonuniformly coupled microstrip lines should be adjusted and be matched to the system impedance with exponential microstrip lines.
考虑到奇、偶模特性阻抗的关系,必须调整非均匀耦合微带线的端口阻抗,同时选用指数渐变线实现与系统阻抗的匹配。
FDTD modeling of matched impedance terminating a microstrip line
微带线匹配负载的FDTD建模
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