Connect with us

Gain decrease in the in-band of a common emitter amplifier.

Discussion in 'General Electronics Discussion' started by inass bouhichia, Aug 2, 2018.

Scroll to continue with content
  1. inass bouhichia

    inass bouhichia

    Mar 6, 2018
    Hi guys,

    I have designed a simple common emitter using the BFU660F as shown in the schematic, in the simulation i had a flat gain from approximatly 3MHz to 100Mhz, However during mesurements, i had a gain difference of 1.5dB between the gain at 3MHz and 100MHz. And i have yet to find an explanation for this and would appreciate any ideas.

    Thank you in advanve.

    Attached Files:

  2. LvW


    Apr 12, 2014
    To be honest - I am surprised that the difference is not larger than 1.5 dB.
    At frequencies as large as 100 Mhz you have to consider many parasitic effects that are not included in the simulation setup.
    (*steve*) likes this.


    May 20, 2017
    How are you measuring it?
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day