Abstract
The design and analysis of a T-Stub U-Slot Frequency Reconfigurable Notch band antenna is considered in the present work using Coplanar Waveguide feed network for an efficient power transfer to improve the bandwidth characteristics of the antenna. The designed antenna has a dimension of 24X21X1.6 mm with FR4 substrate having a permittivity of 4.4. The proposed antenna consists of a T-Stub and U-Slots which are used to enhance the performance characteristics of the antenna. The reconfigurability is achieved by placing PIN diodes at T-Stub and U-Slots of the antenna design. The designed antenna is more suitable for WLAN, Wi-Fi, LTE and Bluetooth applications. Simulation results are obtained using CST tool and the same are presented at the end.
Highlights
A single antenna provides limited resonant frequencies, single band of operation with limited gain in the present scenario
When the value changed to 3.6 mm, the fundamental resonant frequency is at 3.8 GHz and second band from 5.3 to 9.5 GHz
The designed antenna is showing optimum performance since the resonant frequency is at 3 GHz and second resonating band is from 5 to 8.8 GHz
Summary
A single antenna provides limited resonant frequencies, single band of operation with limited gain in the present scenario. In order to overcome the single band frequency of operation and limited gain, frequency diversity with multi resonant characteristics from single antenna is essential for the above said applications. In the present work, T-Stub U-Slot frequency reconfigurable antenna is designed and its parametric analysis is evaluated. Three PIN diodes are used to attain frequency reconfigurability. The parametric analysis of T-Stub U-Slot notch band [7] frequency reconfigurable antenna is carried out by varying three important parameters namely, width of the feed (Wf), width of the T-stub (T3) and length of the U-slot (S1) and the results are presented at the end
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