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AWR2944EVM: AWR2944

Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944PEVM

Tool/software:

Dear TI technical advisor,

While browsing the article "EVM User's Guide: AWR2944EVM, AWR2944PEVM", I noticed that "the horizontal 3dB-beamwidth is approximately ±30 degrees ". Why is it that a horizontal 3dB-beamwidth has ±30 degrees, but can detect a maximum range of ±60 degrees?

Thank you very much.
Best Regards.