×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Where can I find bidirectional Rf amplifier?

Where can I find bidirectional Rf amplifier?

Where can I find bidirectional Rf amplifier?

(OP)
Hi I need to find a bidirectional rf amp, surface mounted at 2.4 GHz. I could use  switches and two rf amps but I would rather not to(I have one rx/tx path).I haven't found something though I have searched the net :)
Thanks in advanced!

RE: Where can I find bidirectional Rf amplifier?

So, use switches and ONE RF amp.  Presumably, you're not trying to transmit and receive at the same time with the same amplifier.

There is no such thing as a bidirectional amplifier, RF or not.  The closest you can get is a transceiver, which is two RF amplifiers with switches.

TTFN

FAQ731-376: Eng-Tips.com Forum Policies

RE: Where can I find bidirectional Rf amplifier?

Bidirectional amplifiers can be used provided there is a frequency band difference. For example, pole-mounted Cable TV amplifier are bi-directional since they carry the back-channel signals (PPV orders, Internet uplink, etc.) from the customers back to the head-end.

Bidirectional amplifiers in the same frequency range are called oscillators.

 

RE: Where can I find bidirectional Rf amplifier?

Hiya-

As VE1BLL mentioned there has to be a frequency difference. It need not be in a different band.  In the Ham Radio world at 2 meters the split difference is 600KHz.  At 2.4 G I am assuming that the resonators would be rather small.  Of course, good isolation is required. Don't think that the Hams are setting up 2.4 GHz repeaters but might be a worthwhile read of their microwave literature.

 Cheers,

   Rich S.

RE: Where can I find bidirectional Rf amplifier?

"Bidirectional amplifiers in the same frequency range are called oscillators"

Very well put! VE1BLL. PLS.

Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

RE: Where can I find bidirectional Rf amplifier?

2m Ham repeaters don't normally use 'bidirectional amplifiers'. They'll have a receiver, a transmitter, and a bank of tuned cavity filters occupying roughly half a cubic meter.

 

RE: Where can I find bidirectional Rf amplifier?

(OP)
Ok I got it..there isn't such amp....thanks alot again for the help guys ;)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources