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Phased Array SimulatoVery Small FM Antennas???? - RF Cafe Forums

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 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


 
   
 
 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.


 
   
 
 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


 
   
 
 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.


 
   
 
 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




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