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samchieh
Joined: 09 Apr 2006
Posts: 26
Helped: 1
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 27 Jun 2009 0:16 Phased Array |
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Hello,
Could someone provide a document or paper discussion what dictates the maximum allowable scaning angle for a phased array.
I can not seem to find what mechanism it is that puts a limit to the allowable scanning angle.
Any information would be helpful.
Thanks!
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flatulent
Joined: 19 Jul 2002
Posts: 4877
Helped: 324
Location: Middle Earth
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27 Jun 2009 3:06 Re: Phased Array |
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| Google the term "grating lobes" to find one limit.
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samchieh
Joined: 09 Apr 2006
Posts: 26
Helped: 1
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27 Jun 2009 20:34 Re: Phased Array |
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What if the radiating elements are no longer isotropic?
For example, if the beamwidth of the individual radiating element is 30 degree, that must affect the maximum scan angle also right?
What's the relation for this?
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flatulent
Joined: 19 Jul 2002
Posts: 4877
Helped: 324
Location: Middle Earth
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28 Jun 2009 17:23 Re: Phased Array |
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| The final radiation pattern will be the product of the individual radiators and the array factor (what it would be with isotropic radiators).
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28 Jun 2009 17:23 Ads |
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samchieh
Joined: 09 Apr 2006
Posts: 26
Helped: 1
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28 Jun 2009 23:18 Re: Phased Array |
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| Thanks! I think I understand what's going on now. Great!
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