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What is the Aspect Ratio of a patch antenna?

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vedagarbhamsandeep

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Can anyone tell me what exactly is Aspect Ratio of a Patch Antenna ?
Is it W/L or L/W and what should be the ideal Aspect Ratio to obtain polarization purity in a Microstrip Patch Antenna. I need to reduce the cross polarization level of a patch antenna array -- any suggestions / ideas are most welcome.
 

vfone

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Re: Aspect Ratio

Now depends what type of feeding you use.
For edge fed by a microstrip line the aspect ratio of 1.5 get the minimum cross polarization level.
Other types of feeding needs further simulations.
 

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