×
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

EM version of duckbill check valves in fluid flow

EM version of duckbill check valves in fluid flow

EM version of duckbill check valves in fluid flow

(OP)
In fluid dynamics there is a duckbill check valve to prevent the reverse flow.
In EM wave an antenna emmits/receive at the same efficiency.
Is there anyway one can make a check valve for antenna so that it emmits more than received or
vice versa.......or perhaps emitts without even receive?

RE: EM version of duckbill check valves in fluid flow

No.

.


Me wrong? I'm just fine-tuning my sarcasm!

RE: EM version of duckbill check valves in fluid flow

If you're working in the microwave range, you might try sticking a three-port circulator into the feed, with a dummy load on the spare port.

A.

RE: EM version of duckbill check valves in fluid flow

In electrics there is a device called a diode that is analogous to a check valve. It allows current flow in only one direction.
Unfortunately radio waves are Alternating Current. The current is reversing direction many times a second. Inserting a diode to allow current flow in one direction only will yield interesting results in the transmitted signal and similar interesting results in the received signal.

Bill
--------------------
"Why not the best?"
Jimmy Carter

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