Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to design a simple antenna [title] Find out what frequency you want (for wi-fi you are using 2.45ghz = 2 , 450 , 000 , 000hz). [step] This is needed because this determines the length of your antenna. [title] Get a good conductor.

Ending1: [step] To do this you need a sturdy bar. Good gravel will do just fine but sand can work too. Ending2: [step] For the example we can use a copper wire and a piece of copper plating. Also you will need a co-axial cable (75 ohm is better than 50 ohm, for wi-fi 50 ohm is better than 75 ohm). Ending3: [step] This can be either colored or white. Colored conductor can be fun to experiment with using. Ending4: [step] People make circuits on their fingers, and many research show that it makes them more visual than those made by fingers. The ratios don't matter at this point so the absolute allowance that a conductor has for communication is inversely the length of the antenna (i.e.

Answer format: ending1/ending2/ending3/ending4