Electromagnetic Antenna For Wi-Fi Devices

ECA-IIProject Presentation

Electromagnetic Antenna For Wi-Fi Devices

Group Members:

Taha Rafiq FA11-BET-076M. Junaid Khan FA11-BET-052Umair Manzar FA11-BET-101Hassan Mushtaq FA11-BET-109

Antenna For Wi-Fi Devices

Antenna:

An antenna is a device which convert the electrical energy of given frequency to Electromagnetic energy & vice versa.

Wi-fi Devices:

Wi-Fi devices are usually used to transmit electromagnetic waves of frequency ranging from 3 GHz to 3.6 GHz.

Antenna Range :

We designed this antenna to work at the frequency of 3 GHz which is usually considered ideal for Wi-Fi signal’s transmissions.




• In this project, antenna dimensions were analytically calculated and fabricated .

• Analytical calculations were done using “Antenna Theory” by C.A. Balanis .

Micro strip rectangular patch antenna is selected for the described purpose because of its suitability at such higher

frequencies.



Working & Function of Components :

Di electric FR-4 with ε=4.4 & μ=1 (This layer act as dielectric resonant layer).

Conducting Cu layer ( Act as Ground & Rectangular Patch).

SMA Connector (Provide 50 Ohms matching to the circuit).



Design equation for rectangular patch antenna is as follows:-

Length and width of the rectangular were selected using specific formulas given as below :

Calculations:

Width equation for rectangular patch antenna is as follows:-



Calculations:

Length equation for rectangular patch antenna is as follows:-

“L” represents the length of the rectangular patch.

“W” represents the width of rectangular patch.

“c” represents the speed of light while € represents the permittivity of FR-4 which is 4.4



Calculated Results:

Length of the rectangular patch was calculated to be 2.2 cm.

Width of the rectangular patch was calculated to be 3.1 cm.

Area of ground layer is kept 10 cm x 10 cm.

SMA connector used has an impedance of 50 Ω.

Dielectric material has permitivity equals to 4.4 and permiabilty has 1.



Circuit Diagram:



Simulations:

Antenna’s simulations were done using the software “Ansoft HFSS”.Snapshots of the simulations are given as below:



Simulations:

Antenna’s simulations were done using the software “Ansoft HFSS”.Snapshots of the simulations are given as below:Graph of Gain of Antenna is given as:


Electromagnetic Antenna For Wi-Fi DevicesSimulations:


Radiating Diagram of Antenna is given as :


Electromagnetic Antenna For Wi-Fi DevicesSimulations:


Return Loss Curve of antenna is given as :



THANK

YOU !

Electromagnetic Antenna For Wi-Fi Devices

Technology

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