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Element7k
Joined: 07 May 2003
Posts: 388
Helped: 8
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 05 Jun 2003 18:30 How to design Meander line antenna |
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Hi all,
I will like to know the basics of designing a meander line antenna. What I will also like to know is how Skycross seem to be able to use this design technique to control the radiation patterns and obtain a broadband/dualabnd antenna with acceptable gain . I am wondering how this is achieved. Anyone out there who know how this is done. Any information will be very much appreciated.
Cheers,
Element7k
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luben111
Joined: 02 Mar 2002
Posts: 103
Helped: 2
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| 05 Jun 2003 20:33 |
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Hi,
I usually scan the ready antenna (from PCB or paper) , then import it to CorelDraw and draw over it.
Then export the drawn picture to ORCAD MAX file. Works great.
But if you have to calculate the dimensions and the shapes.. I have no idea. For sure, something that's already made like PCB is easy to be reproduced in COrelDraw with extreme precision. For example I succeded to reproduce the PCB from calliper.
So, there are two problems:
- how to create the original curve (to calculate it)
- how to implement this curve into some PCB design program
Regards
Luben
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Element7k
Joined: 07 May 2003
Posts: 388
Helped: 8
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| 05 Jun 2003 22:24 |
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Dear luben111,
Thank you for you reply. Very much appreciated but perhaps I was vague in stating what I was asking. What I am interested to know is how do I design meander line antennas from scratch. E.g for resonance at a certain frequency band and what are the techniques for obtaining broadband. I am using Microwave Studio and IE3D for simulation so I will have no problems with PCB geometry creation. Anyway, I think most of these meander lines are printed on Mylar or a substrate material so PCB is not too much of a problem here. Geometry can be exported out of the electromagnetic simulator to AutoCAD easily using DXF.
Cheers,
Element7k
| luben111 wrote: |
Hi,
I usually scan the ready antenna (from PCB or paper) , then import it to CorelDraw and draw over it.
Then export the drawn picture to ORCAD MAX file. Works great.
Luben |
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kyg
Joined: 06 Dec 2007
Posts: 76
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| 13 Apr 2008 13:18 Re: How to design Meander line antenna |
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hello.....
may i know how do you design the meander line antenna?what software u are used
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mainak001
Joined: 01 Dec 2005
Posts: 55
Helped: 1
Location: India
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| 25 Apr 2008 9:58 Re: How to design Meander line antenna |
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to design meander line antenna .. u follow the book of
microstrip antennas by ...
ramesh garg .
There u will find the design equation .. And there is also some paper hints ..
BUT why are u want to design it . It is fr practical purpose or only interest based ..
Because meander line antenna are very inefficient . In only radiates at the transmission line edges..
And fr designing purpose IE3D will be the best .. I have done it ..
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kyg
Joined: 06 Dec 2007
Posts: 76
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| 20 Aug 2008 9:58 Re: How to design Meander line antenna |
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i am now try to design monopole meander line antenna
but the efficiency is to worse. FREQ that i used for 915MHz
i donno when i done the the simulation the freq not achieve the target freq.
i design for practical purpose.
hope u can help me in order u already done the design meander line antenna.
regards,
kyg
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amu811
Joined: 19 May 2008
Posts: 29
Helped: 4
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| 21 Aug 2008 0:56 How to design Meander line antenna |
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hi
you can achieve required freq by adjusting antennas size, or your matching circuit is not perfect. u can try to modify ant structure.
maybe following paper is helpful to you design.
Tsutomu Endo, Yonehiko Sunahara, Shinichi Satoh, and Takashi Katagi, “Resonant Frequency and Radiation Efficiency of Meander Line Antennas”, Electronics and Communications in Japan, Vol. 83, pp. 51-58, 2000.
sorry,i don't know how to upload this paper. but u can download from http://www3.interscience.wiley.com/browse/?type=JOURNAL
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kyg
Joined: 06 Dec 2007
Posts: 76
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| 22 Aug 2008 1:18 How to design Meander line antenna |
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meander line antenna that i have design have
limitation size, so i can increase the size?
make it more turn or what?
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