Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

how much noise figure should a LNA be?

Status
Not open for further replies.
torbai

torbai

Member level 3
Joined
Nov 15, 2011
Messages
67
Helped
15
Reputation
30
Reaction score
13
Trophy points
1,288
Location
Harbin,China
Activity points
1,744
how much noise figure should a LNA be?

I mean, how much noise figure should it be at most if the amplifier can be called a LNA?

3dB?
 

torbai said:
how much noise figure should a LNA be?

I mean, how much noise figure should it be at most if the amplifier can be called a LNA?

3dB?
Click to expand...

Depends on application, frequency band, bandwith.
Most LNAs have NF < 3 dB if operated from UHF to say 30 GHz, and a moderate bandwidth of say 1 GHz.
Ultra-wideband LNAs are e.g.those operating from 1 MHz to 40 GHz where NF < 6 dB is considered low.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top