Layout for Darlington circuit

[benson23]

Hello,

I want to layout a low noise amplifier from 2-6 GHz frequency range. Therefor I want to use a Darlington circuit. The simulation looks fine, constant gain of 15 dB, but I really don't know how to layout the Darlington circuit. If I use a circuit with only one transistor the measurement is fine but the Darlington circuit will not work.

Can someone help me how to layout this Darlington circuit?

BR
Benson

[shyam]

i don't think the second transistor makes a big difference. One thing you should make sure is to provide separation(shields) between the two amplifiers(transistors) so that the output wont couple with the input resulting in oscillations.

[MadysonBelinda]

I agree with above views

[BreanaAbagail]

Layout of a circuit board can greatly affect the cost of its production and subsequent repair. ... For this, you need to know what type of amplifier configuration ..... To use another stage of Darlington amplification, remove W1 and connect ... sistors don't really turn on at .6 or .7 volts, your selected value may ...

[AllyAshantiBrown]

A Darlington transistor circuit having a power transistor and a driver transistor is proposed. The two transistors are monolithically integrated in a common substrate (10) by a planar process, the substrate forming the collector zones of the two transistors

[metal-domes]

It's really hard to handle with Darlington circuit.