Применение катушки индуктивности вместо дросселя, "нет ли подводных камней?" Опции

[sergunas]

Можно ли применить вместо дросселя в схеме питания широкополосного усилителя 1324УВ2 катушку индуктивности серии КИФ? Если можно, то какую лучше выбрать?

[ANATOLP]

Для тех кто хочет понять: An RF choke should be chosen such that its reactance is at least 500 ohms (10 times
the load impedance) at the lowest operating frequency. It must also be free of parasitic
(series) resonance up to the highest operating frequency.
Super Wide-band RF Choke
The circuit designer might consider using a commercially available inductor as the RF
choke in the bias circuit of Figure 2. The low end of the useful frequency range is
controlled by the value of the inductance; the higher the value, the lower the frequency.
The high end of the frequency range is determined by the series resonant frequency of
the inductor; it tends to decrease as the value of the inductance increases. The
frequency band of the overall amplifier circuit is often limited by the inductor rather
than the MMIC amplifier itself, which have performance up to 8 GHz. Besides,
inductors are not clearly specified for RF choke application, and design change by the
inductor manufacturer will have an unknown effect on the circuit. This complicates the
circuit designer’s job. Это из AN-60-010 от Mini-Circuits.

[Dr.Alex]

Ничего нового в этой банальщине нет. Так что, с одной стороны абстрактные "рекомендации", а с другой реальный референс дизайн от известной фирмы.