Abstract:
This thesis presents a study on conductor strip dual band rectangular slot antenna fed by microstrip line. The IE3D software is used to simulated design and analyzed this antenna on the RT/Duroid 5880 substrate of dielectric constant 2.2, thickness of 1.575 mm, and loss tangent 0.0009. The principal rectangular slot antenna is designed to achieved single band, and L-shaped conductor strip is introduced by insert into rectangular slot to achieve dual band coverage standard of IEEE 802.11b/g (2.4-2.4835 GHz), IEEE 802.11a (5.15-5.35 GHz), IEEE 802.11h (5.725-5.825 GHz) and IEEE 802.11n (2.4-2.4835 GHz, 5.15-5.35 GHz, 5.725-5.825 GHz). Simulation result of return loss at -10 dB demonstrates that this antenna can achieve dual band from frequency range 2.34-2.69 GHz and 4.99-7.83 GHz coverage desirable band. Simulation average gain of lower band is 4 dBi and higher band is 6.0 dBi. The final simulation design is fabricate on RT/Duroid 5880, the measurement is compared with simulation result.
The measured bandwidths of the proposed antenna show dual band at frequency range 2.37-2.58 GHz and 5.2-8.02 GHz which able to coverage standard of IEEE 802.11b/g, IEEE 802.11h but unable to coverage standard of IEEE 802.11a and IEEE 802.11n.