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SIM300/SIM305 WITHOUT ANTENNA?

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saumya_85

saumya_85

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sim300 atick

All most all the mobile phones are not having external antenna. They are doing some work in PCB So it works as Antenna. they don't requier any antenna.

Could anybody help me out how to use SIM300 with out antenna by doing some work in PCB?
 

saumya_85 said:
Where is your Antenna?
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Cellphones employ patch antennas because they don't "stick out of the phone". However, I make GSM equipment for industrial applications where the radios are often inside structures. To insure that we get a good signal I always use an external antenna. Depending on the applications, sometimes a 'stub' antenna will do, and sometimes we need an omni or a yagi.
 

    saumya_85

    saumya_85

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Cellphones employ patch antennas because they don't "stick out of the phone". However, I make GSM equipment for industrial applications where the radios are often inside structures. To insure that we get a good signal I always use an external antenna. Depending on the applications, sometimes a 'stub' antenna will do, and sometimes we need an omni or a yagi.[/quote]

Thanks.. Could you tell me how to design in PCB Layout?
 

Search this forum for 'microstrip' or 'patch' anttenna - I'm sure you'll find plenty of posts.
 

    saumya_85

    saumya_85

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