Custom Search
Over 10000 Pages Indexed
Your Host
Click here to read about RF CafeKirt
Blattenberger

... single-
handedly
redefining
what an
engineering website
should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5CCG (5th MOB):
My USAF radar shop

Hobby & Fun

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse
riding business website -
lots of info

•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe©

RF Cafe E-Mail

Monopole antenna Designing - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: Monopole antenna Designing
Posted: Fri Jun 03, 2005 5:22 am 
I m designing a ISM RF trasmitter(10mW type) operating frequency is 315 MHz

I want to use a monopole type of antenna plz guide me how to design a
monopole antenna(any article,formulae) for a particular frequency,what
should be the material/thichness for the wire used(copper,etc) and how to designit to have 50ohm or any input impeadence,

also guide me how can i measure the input impeadence of an
antenna(monopole-single wire type) practically.plz tell me if there is any
software for the designing this kind of antennas

with regards
pallav Aggarwal
pallav_engg@yahoo.com


 
  
 
 Post subject:
Posted: Sun Oct 16, 2005 9:52 pm 
Use 24cm long wire (Quaterwave Monopole) with gnd plane.


 
  
 
 Post subject:
Posted: Fri Oct 21, 2005 10:34 am 
Hay,
buy a simple magnetic antenna used for car radio (like the one you see on taxi for it's communication) and then cut the antenna to 0.25 wave length. you can check it with a NA.
use it with a gound plane.



Posted  11/12/2012
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel