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

Job Board

About RF Cafe™

Sitemap

Embedded Antenna design - 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: Embedded Antenna design
Posted: Tue Mar 17, 2009 7:24 pm 
 
Lieutenant

Joined: Tue Mar 17, 2009 7:20 pm
Posts: 2
If anyone is looking for help with antenna design, I am here to answer some basic questions.
Or visit www.antennas4us.com.

Thanks. James.


 
   
 
 Post subject: Re: Embedded Antenna design
Posted: Thu May 14, 2009 11:48 am 
 
Captain
User avatar

Joined: Thu Oct 12, 2006 7:50 am
Posts: 5
Hi James. Do you know if anyone (maybe you) makes a compact FM antenna that does not require something like headphone wires to act as the antenna? I know obtainig a reasonable efficieny in a small form factor at 88-108 MHz is tough (or impossible). Any thoughts?

_________________
Thanks,
Jess


 
   
 
 Post subject: Re: Embedded Antenna design
Posted: Fri May 15, 2009 4:39 am 
 
General
User avatar

Joined: Fri Feb 17, 2006 12:07 pm
Posts: 236
Location: London UK
Hi Jess
About 20 years ago I bought from a mail order catalogue a low profile compact receive antenna that claimed to cover VHF FM and Band IV/V TV.
I will examine the case to see if there is a clue to the manufacturer. I bought 4 at the time, and I'm still using them as indoor antennas because my apartment has no means of installing an outdoor antenna for FM.
The size is about the same as a pack of 20 ciggies (am I allowed to be non-PC here?) or a lady's powder compact (ditto). It is certainly effective, but to examine it by reverse engineering, I would have to destroy it using a hacksaw. I think it must use some kind of VHF/UHF ferrite, with a coil would over it of a few turns.

_________________
At bottom, life is all about
Sucking in and blowing out.





Posted  11/12/2012
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

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!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website