DESIGN AND SIMULATION OF WIDE-BAND PLANAR INVERTED-F ANTENNA FOR WIRELESS COMMUNICATION APPLICATIONS

Abstract

There has been a significant growth in the demand for portable, compact and easy to handle and use hand-held wireless communication devices over the years since their introduction in the commercial space. Devices with embedded internal antennas have fulfilled the need for portability. Device miniaturization can be achieved by reducing the size of the antennas used. Designers all across the world are continuously working on creating new designs mostly with micro-strip patch antennas and planar inverted-F for use in wireless communication applications as these type of antennas are known for their low prolife structure and can be easily embedded in the instruments. Likewise, the project also attempts to design, implement, simulate, and measure the relevant parameters and understand the performance of planar inverted-F antenna (PIFA). Determination of the resonating frequencies of the antenna is done and respective gains and directivity obtained at those frequencies. FR4 substrate with relative permittivity or dielectric constant of 4.3 but the radiating strip is elevated in a PIFA with the help of a shorting pin or strip so the effective relative permittivity changes. Two slots in the ground or defected ground structure are cut-out to improve the bandwidth of the model. Modifications and changes might be done to make the results better as the work progresses.

v The parameters like return loss, radiation pattern and directivity of the PIFA have been extensively investigated and carried out. All the designing, simulations are done and results are obtained using CST Studio Suite 2014, also all the obtained results satisfy the performance under - 10dB point in the bandwidth of 20.13%.