GENERAL OBJECTIVE The main objective of this project is to understand the working and the design of an antenna. SPECIFIC OBJECTIVE To design and build the antenna according to designed specifications. To be acquainted with some of the characteristics of parasitic antenna element modelling and operation. To know the Antenna radiation pattern Test antenna and verify it performs as expected. The project system performance objectives are: (a) Develop large, low cost antenna structure. (b) Validate mechanical packaging efficiency. BILL OF MATERIALS Item # Description Quantity Total cost (Peso) 1 Aluminium tube (3meter) 1pc. 75.00 2 Balun 1pc. 50.00 3 Aluminium tube holder 3pcs. 60.00 4 Bolts and nuts 3pcs. 15.00 5 Screw 3pcs. 3.00 6 Boom (3ft.) 1pc. 75.00 7 Coaxial cable (5 meter) 1pc. 100.00 Total cost: P378.00 PROCEDURE
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Transcript
GENERAL OBJECTIVE
The main objective of this project is to understand the working and the design of an antenna.
SPECIFIC OBJECTIVE
To design and build the antenna according to designed specifications. To be acquainted with some of the characteristics of parasitic antenna element
modelling and operation. To know the Antenna radiation pattern Test antenna and verify it performs as expected. The project system performance objectives are:
1. Cut the three tubes to their exact lengths and drill a hole (1/16" diameter).The shortest tube will be used as a director element, the longest tube will the reflector element and the medium length will be the driven element.
Preparing the driven, reflector and director elements.
2. Cut the aluminium mounting tube or boom to 3 feet long and drill three holes thru and thru at one side. The holes must have a diameter of 3/8" or enough to accommodate the diameter of the tube that will be inserted into it. Follow the dimensions shown.
a = 3/8”
Preparing the boom.
3. Mount the aluminum tubes to the tube holder to the boom following the illustration for the proper arrangement of the elements. Secure the tube to the boom by placing the screws through the holes at the sides similar to the method of attaching element of the antenna.
Assembling the antenna elements to the boom.
4. Complete the attachments of the driven element by putting the balun into it and tighten the nuts through the wire.