We successfully get the 2.4GHz as our frequency for Wi-Fi antenna. Enjoy the video :D

The design was almost same as the first design but now we cut the popsicle sticks with the length as the spacing between the elements. All the elements was attached to the popsicle sticks and tape with black tape. 

After finish attached the elements to the popsicle sticks, then we attached another layer of sticks to support the antenna.

The SMA connector that soldered into the coaxial cable and another end of coaxial cable solder to the radiator of antenna.

First, we do a measurement of antenna which is made by use suitable dimension for radiator, reflector and director. Table shown the measurement that we use as our reference.

Elements	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Length (cm)	6.1	6.0	5.4	5.3	5.2	5.2	5.1	5.1	5.0	5.0	5.0	4.9	4.9	4.9	4.8

Then, the paper clips were straight up. Paper clip should be really straight to avoid any errors!

For the antenna backbone, the popsicle stick was measured equally for each sticks to cut off the curve in the end of stick

After measured the sticks, marked the area to be discard. Then cut the unwanted region of the sticks.

Next, the popsicle stick is attached together by using strong glue. As precaution, the area that has been cut is trimmed by sand paper to ensure the tidiness.

The paper clip that already straightened up was measured as the table requirement for this antenna. The clip was cut according to length of the elements.

The distance between elements were measured and marked before attached all the elements on the backbone.

The SMA connector was soldered to the coaxial cable and we also solder the coaxial cable with the feed or radiator of the antenna.

 In this session we were discussing with our lecture madam Alyani, on how to get a better result to improve our antenna.

She explain to us and give some advice for our Yagi Uda antenna.

The Driven Element (dipole) length, F should around 0.5λ (half wavelength)

The Reflector length, R should longer than dipole approximately 5%

The Directors, Dn should shorther than dipole approximately 5%

The spacing between Reflector and DE, S_R in range of 0.1 to 0.35 λ

The spacing between Directors, S_D in range of 0.1 to 0.5 λ or more

Impedance at cable feed-point is decreasing due to the effect of additional parasitic element (Reflector and Directors) and their spacing. This problem can be overcomed by the folded dipole (Driven Element). As the dipole length, F is half of the wavelength, and then the impedance will be increase 4 times about 300Ω.