1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Transmitting antenna

  1. Mar 31, 2009 #1
    Hello, I got the following problem.

    1. Assuming that your cell-phone antenna acts like a monopole, how long should it be if the
    cell phone operates at a frequency of 1.8 GHz? (Note: 1 GHz = 1000 MHz =
    1,000,000,000 Hz.)

    2. λ= c/f

    f would 1/T, T being the Hz. But that would be 0,0000000001

    Then, c is always the same value, right? Which would be c = 2.99792458 × 108 [m/s].

    I can't get the result. It's supposed to be about 4 cm:confused:
  2. jcsd
  3. Apr 1, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hello XodoX! :smile:

    Convert c to cm/s :wink:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook