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 to increase mixer bandwidth.

Status
Not open for further replies.
T

tangqin55

Member level 3
Joined
Apr 13, 2006
Messages
65
Helped
2
Reputation
4
Reaction score
0
Trophy points
1,286
Activity points
1,754
one paper use a pair of emitter followers which is put between LNA output and mixer RF input (the mixer is typical fully balanced Gilbert mixer) to increase mixer bandwidth.

could you tell me the mechanism to increase bandwidth?how can it make it?
how to select emitter area of this emitter followers?
 

use resistive loads this will increase the BW
the emmtitetr followers are buffers so the mixer don't load the LNA

khouly
 

the input BW is RC, 'cause input impedance of emitter followers are very large, the use of emitter followers can increase mixer BW. is it right?

then how to decide emitter area of emitter followers?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top