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.

LTE Band 25/41 Diplexer

Status
Not open for further replies.

myRF

Junior Member level 1
Joined
Oct 10, 2013
Messages
19
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Location
UK
Activity points
168
Hi All,

I'm looking for a diplexer for the above LTE bands, ideally an off the shelf SAW/BAW type. I've searched the usual suspects websites (Qorvo/triquint, Avago, TDK, Johanson) but with no luck.

If I can't find something then it's back to the drawing board and first principles! Any tips for diplexer design at around 2.5 GHz? The most popular solutions seems to be 2 singly-terminated butterworth filters joined at a common port. But even with a 9th order filter I only get about 8dB adjacent channel rejection. The channel seperation/guardband is 500MHz between Band 25 and 41.

I don't really want to fork out $$$ for a custom cavity filter either!

Any help greatly appreciated.

Thanks,
myRF
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top