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adaptation patch antenna

 
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Abu Maria.
Antenna Theory Regular


Joined: 22 Jan 2011
Posts: 39

PostPosted: Tue Jul 12, 2011 10:58 am    Post subject: adaptation patch antenna Reply with quote

if I want to design a patch antenna which works a resonant frequency fr1
and when I do the notch toward the center of the patch to realize the adaptation , it will change the resonant frequency fr1 to fr2 ,and Maybe I'm no longer has the resonance , so how do i?
thank u very much
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Abu Maria.
Antenna Theory Regular


Joined: 22 Jan 2011
Posts: 39

PostPosted: Tue Jul 12, 2011 5:46 pm    Post subject: Reply with quote

if it is not clear ,let me know...and thank u
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Abu Maria.
Antenna Theory Regular


Joined: 22 Jan 2011
Posts: 39

PostPosted: Wed Jul 13, 2011 3:21 pm    Post subject: Reply with quote

in balanis he say" However,
the inset feed introduces a physical notch, which in turn introduces a junction
capacitance. The physical notch and its corresponding junction capacitance influence slightly the resonance frequency, which typically may vary by about 1%."
is that inevitable this changment?
is that resonance always remain?
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Abu Maria.
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Joined: 22 Jan 2011
Posts: 39

PostPosted: Sun Jul 17, 2011 9:01 am    Post subject: Reply with quote

the holidays ...
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