3dB bridge dB电桥
3DB Hybrid DB电桥
3dB coupler dB耦合器
3dB支线耦合器 dB branch-line coupler
3dB mode numbers 分贝模式数
3dB正交耦合电桥 dB branch-line coupler
3dB Power divider 三分贝功率分配器
3dB Bandpass width dB通带带宽
3db power splitter db功分器
The frequency at which the voltmeter's response to an AC signal drops to 70% is often denoted as the "3db point" (f3dB).
电压表对交流信号的响应降低到70%时的频率常常称为“3d B点”(f3dB)。
Power amplifier Modules were designed using Push-Pull BJT power amplifiers that were combined using 3db Quadrature couplers.
功率放大器模组设计，使用负载牵引特性原理功率放大器被合并使用三分贝正交耦合器。
It is also found that the isolation structure with 3db is effective in 3d isolation, it can lower 50% response of earthquake than non-isolation structure.
研究结果表明，3db隔震结构的三向隔震效果明显，楼层的地震反应比不隔震结构降低了50%以上。
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