Thank you for visiting RF Cafe! 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 RF Cafe Homepage Thank you for visiting RF Cafe!

Phased Array SimulatoVery Small FM Antennas???? - 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


sos
 Post subject: Very Small FM Antennas????
Posted: Mon Dec 17, 2007 8:06 pm 
 
Lieutenant
User avatar

Joined: Mon Dec 17, 2007 7:14 pm
Posts: 2
Hi,

Does anyone knows any companies specializing in designing very small broadband VHF antennas (couple of cm) with gains higher than -20 dBi, Omni pattern and matched over a band of 169 to 218 MHz (VSWR 2:1)? Any help is appreciated.

Thanks
SS


 
   
 
Feng
 Post subject:
Posted: Tue Dec 18, 2007 3:09 pm 
 
Captain
User avatar

Joined: Sun Mar 19, 2006 5:25 pm
Posts: 21
Location: Burnaby
Hi sos,

A book named Small Antennas may be helpful for your design. It was written by K. Fujumoto and published by Reserach Studies Press in 1988. You may look it from the library.


 
   
 
sos
 Post subject:
Posted: Tue Dec 18, 2007 4:03 pm 
 
Lieutenant
User avatar

Joined: Mon Dec 17, 2007 7:14 pm
Posts: 2
Hi Feng,

Thanks for your reply. I will look into that book for design ideas, but I wanted to check if there was anything aleady available. Please let me know if you are aware of any companies making these type of antennas.

Thanks


 
   
 
Feng
 Post subject:
Posted: Tue Dec 18, 2007 4:50 pm 
 
Captain
User avatar

Joined: Sun Mar 19, 2006 5:25 pm
Posts: 21
Location: Burnaby
Hi sos,

There is the company dedicates to small antennas and its website is http://www.antenova.com/. However, there isn't an antenna in the band you required. I think this kind of antenna, which has special requirements, may need to custom design.

By the way, its omni pattern is at all directions or just in a plane? There is a big difference between them.


 
   
 
imodelit_moderator
 Post subject: Very Small FM Antennas????
Posted: Tue Jan 08, 2008 2:36 am 
 
Captain
User avatar

Joined: Wed Jun 20, 2007 3:01 am
Posts: 22
Dear sos,

EngNet Co., the owner of http://www.imodelit.com, can offer you the required design. There are more than 270 models for different microwave, electrical, and optical components models, where 74 ones are for various antenna elements and arrays.

Check antenna library at: http://www.imodelit.com/ViewProducts.aspx?CID=92

Also, currently they are developing a new EM package Generic ElectroMagnetic Modeler (GEMM) that employs the Method of Moment (MoM). You can view videos of this product at

http://www.imodelit.com/flashGemm/GEMM1.html
http://www.imodelit.com/flashGemm/GEMM2.html
http://www.imodelit.com/flashGemm/GEMM3.html

For technical details and discussion, please contact, khalid.hussien@imodelit.com and tamer.abuelfadl@imodelit.com .

Best Regards,
imodelit Moderator




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