Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes Wireless System Designer RF Stencils for Visio Shapes for Word Search RF Cafe Sitemap Advertising Facebook RF Cafe Forums Thank you for visiting RF Cafe!

FM Microstrip Antenna? - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


Student4Life
 Post subject: FM microstrip antenna?
Posted: Tue Feb 07, 2006 9:58 am 
Hi,

Is there a program or online tool that I can use to help me design an FM antenna that I can etch on a PCboard? I was thinking of just soldering a piece of wire for my primitive FM receiver, but I wondered if it is possible to just implement a copper trace on a PCB. That way it will look nicer. :)

Is this possible? Thank you!


 
  
 
Karthik
 Post subject:
Posted: Tue Feb 07, 2006 10:26 am 
Hi,

It can be done, but, I am not sure you want to do that at FM frequencies. The size of the antenna would be very big and I dont think you would want to have such a big chunk of pcb lying around!!


 
  
 
Student4Life
 Post subject:
Posted: Wed Feb 08, 2006 10:18 am 
Hi! I wanted to squeeze an antenna into a matchbox, so I thought if I etched a copper trace and zigzag it around a small board so I can get close to a quarter wavelength of say 100MHz, then that would do the job. But I guess not? Any tips of squeezing an antenna into a small box? I read that other small FM receivers use the actual headphone cables for the antenna, but I measured a headphone cable and it seems pretty short. Can't I just etch this same length into a board?

thanks!


 
  
 
Karthik
 Post subject:
Posted: Wed Feb 08, 2006 11:50 am 
Well, you could do that. If you have a zigzag line, or etch a multi turn loop, you could possibly achieve a small size. But, matching it would be the tricky part, coz the loop will be inductive, and the inductance will vary depending on the spacing between each turn of the loop. As another thought, why not wind the wire itself inside the box? That might be simpler.






Posted  11/12/2012

RF Cafe Software

   Wireless System Designer - RF Cafe
Wireless System Designer

RF & EE Symbols Word
RF Stencils for Visio
Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2022
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:
 AirplanesAndRockets.com

Try Using SEARCH
to Find What You Need. 
There are 1,000s of Pages Indexed on RF Cafe !

height-line