What is the length of a 1/2 wavelength dipole antenna for 1.9GHz radio waves?

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What is the length of a 1/2 wavelength dipole antenna for 1.9GHz radio waves?

2006-10-08 00:51:41 · 4 answers · asked by Meder 2 in Science & Mathematics ➔ Physics

4 answers

0.079m

2006-10-12 00:50:02 · answer #1 · answered by Anonymous · 1⤊ 0⤋

492 / F(MHz) will give you half wavelength in feet.

At 1.9GHz, this is about 3.1 inches (7.9cm) for half wave dipole in free space.

2006-10-08 08:34:55 · answer #2 · answered by Warren914 6 · 0⤊ 0⤋

1.9 Ghz? wow u r using microwave and it is usually not suitable for because the antenna will be very small.

Use v=fl

l= ((3x10*8) / (1.9x10*9))/ 2

=0.08m

So as you see it's not suitable, you should use dish

2006-10-08 07:57:19 · answer #3 · answered by IQEinsten 2 · 0⤊ 0⤋

8 cm isn't all that small...for a phone.

2006-10-08 07:59:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋