Massachusetts Institute of Technology
Sign in

MIT Physics Demo -- Dipole Antenna

An RF transmitter is connected to a long antenna, emitting radio waves. A dipole antenna with a light bulb between its elements acts as the receiver. When the receiving antenna is parallel to the transmitter, the radio waves are absorbed, creating a current in the antenna and causing the bulb to glow. When perpendicular, no current is created, and the bulb does not glow.

Comments (3)

Do you know where one can find that RF transmitter? We're looking to get one for ourselves.

Posted almost 9 years by Anonymous User

would you send me the circuits that you use?

Posted 8 years by nahuelv

How can i make such an receiving antenna?
please send me the circuit…

Posted over 6 years by sagar

You need to log in, in order to post comments.

Created
June 06, 2008 11:36
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
45398 times

More from MIT Department of Physics Technical Services Group

Fluorescent and Neon Tubes in an Electric Field

Fluorescent and Neon Tubes in an El...

Added over 7 years ago | 00:02:02 | 43562 views

Breakdown of Air

Breakdown of Air

Added over 7 years ago | 00:02:09 | 37837 views

MIT Physics Demo -- Galvanometer Principle

MIT Physics Demo -- Galvanometer Pr...

Added over 9 years ago | 00:00:47 | 54381 views

MIT Physics Demo -- Driven Mechanical Oscillator

MIT Physics Demo -- Driven Mechanic...

Added over 9 years ago | 00:01:07 | 41659 views

MIT Physics Demo -- Pendulum and Magnet

MIT Physics Demo -- Pendulum and Ma...

Added over 9 years ago | 00:01:11 | 49103 views

Temperature Effect on Resistance

Temperature Effect on Resistance

Added over 8 years ago | 00:01:10 | 48930 views