For the lobe width, which of the following descriptions is correct is (). (Select 3 Answers)
Within the range of the main lobe, the power density relative to the maximum radiation direction is reduced by half (3dB) Angle
The narrower the lobe width, the better the directivity, the longer the radiation distance, the stronger the anti-interference ability
The pattern usually has two or more lobes
Only within the coverage of the half power angle, the terminal can receive the signal
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