×
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

Urgent: how to simulate 50 ohms feedline in HFSS?

Urgent: how to simulate 50 ohms feedline in HFSS?

Urgent: how to simulate 50 ohms feedline in HFSS?

(OP)
I am relatively new to HFSS and need to simulate a 50 ohm feedline for a monopole slot antenna. The antenna is from the literature and it specifies a 50 ohm feedline, and I am not sure how that is simulated in HFSS. The feedline width and length is 2mmx16mm and the substrate thickness is 2mm with relative permittivity of 4.4. I have entered these paramaters in this characteristic impedance calculator at
http://chemandy.com/calculators/microstrip_transmission_line_calculator_IPC_2141.htm

but it's coming up with 70 ohms instead. So I am not sure where 50 ohms come from.

Also, I learned that transmission feedline length should be lambda/4, but how does that relate exactly to a feedline with characteristic impedance of 50 ohms.

If you would like to check out the antenna I am trying to simulate, it's at
http://ohd2007.esisar.inpg.fr/pdf/41.pdf
and it's the first one: Printed Rectangular-Slot Disc Monopole Antenna

I would really appreciate your straightforward reply to my query as I have researched the forum already and there is a hit and miss discussion around this topic.

Thank you.

P.S. This is really an urgent request.  

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