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.

Gain Problem in subharmonic upconv mixer

Status
Not open for further replies.

bandw

Newbie level 2
Joined
Mar 15, 2018
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
15
i am trying to design a 2 x subharmonic upconvertor mixer.

LO=-15dbm @ 32.5 ghz
RF= -30dbm @ 25 ghz
IF = 40 Ghz

i am not getting any gain...? why ?

also i have the problem of RF feed through.. i understand it would feed through due to single balanced nature of the toplogy , but its higher power than the required IF.


lower stage is LO and upper is RF/mixer...

all the ports are properly matched
 

Attachments

  • 2.png
    2.png
    41.8 KB · Views: 106
  • 1.png
    1.png
    15.6 KB · Views: 101
  • 3.png
    3.png
    26.7 KB · Views: 106

do you mean V_be or V_ce ? My device has a diode voltage of 900mV.. and VCE breakdown of 1.5

Just wanted to add.. after reading some literature i came to know.. i need to bias the lower half in Class B operation.

can you please tell me what should be the base potential and the collector potential for that. ? assuming the same current.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top