【摘要】 本文介绍了使用ＣＡＤ使微带分支定向耦合器设计最佳化。制作和测试结果表明，耦合器的性能完全达到了设计要求。接口阻抗为５０欧的３ｄ三分支定向耦合器具有良好匹配特性，频带宽度达０．８－１ＧＨｚ。更多还原

【Abstract】 In this paper, we introduce optimal design of microstrip branch directional coupler using CAD. Experiments and measurements shown that it’s properties can be meet completely requirement of design. The 3 dB directional couplers with characteristic impedance 50 ohm have very well matching property and bandpass (0.8- l) GHz.更多还原