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x band phase array antenna?

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jaehlee99

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In the X-band system, I would like to guess the size of phase arrary antenna. Assuming the 42dBi, how many radiator do I need to achieve 42dBi gain? What is the array size?
 

zlatkoMM

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If we use that phase array is created by loop (full wave size) is cca 2dB(maximum) than you can easy calculate 42dB.
42/2 = 21 ~ 20 elements.
of course if you build antenna for example wifi 2.4Ghz then there is no problem in size but for larger vawe lenght might
be a problematic. One of options is qurtain quad as good shape of phase array type of antenna.

good luck..!
 

jaehlee99

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If we use that phase array is created by loop (full wave size) is cca 2dB(maximum) than you can easy calculate 42dB.
42/2 = 21 ~ 20 elements.
of course if you build antenna for example wifi 2.4Ghz then there is no problem in size but for larger vawe lenght might
be a problematic. One of options is qurtain quad as good shape of phase array type of antenna.

good luck..!

Thank zlatkoMM,

In case of CCA, how much does the sidelobe have ?
 

zlatkoMM

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In case of CCA, how much does the sidelobe have ?

jaehlee
I am not sure that i properly understand word 'sidelobe' ??
In real 1.2dB gain have ordinary dipole, but because one loop of full vave have 2 dipole (2.4) and + lost is circa about
2.
 

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