Abstract:
Reconfigurable receiving antennas have gotten noteworthy consideration in ongoing year for present day remote correspondence framework, due to their multi-useful properties. Multiband receiving antennas are used for achieving different applications. For example, WiMAX, WLAN, GPS, GSM, UMTS, DCS, PCS and LTE inside a solitary framework. Reconfigurability is obtained using RF MEMS switches. We have used MEMS switches in order to switch between simple ultrawide band antenna and ultrawide band antenna with band notch characteristics. Furthermore, implementation of MEMS switches is shown in the implementation phase. With the arrival UWB band applications, for high-data transfer capacity gadgets, exploration becomes essential in regions of UWB frameworks. Hence, the realization of UWB reception apparatuses in smart circuits advancements is of essential significance. In this project the reconfigurability has been achieved by the design of high gain antenna of ultrawide band applications with band notch characteristics. This design covers entire ultrawide band ranges from 3.1 to 10.6 GHz with band rejection of WLAN band that operates on 5.1- 5.8GHz. At first, we designed an antenna that operated on small bandwidth then we use various bandwidth enhancement techniques to enhance its operating bandwidth. These techniques include corner truncation, partial grounding and inset feeding. Efforts have also been put for enhancement of the designed gain using different substrates and by increasing the radiating area of the antenna while keeping whole size of antenna compact. A detailed analysis of the obtained antenna parameters has been carried out and efforts are made to obtain best possible antenna efficiency parameters which include bandwidth, gain, return loss and VSWR. The fabrication and lab testing of the designs have been carried out and the results obtained are in close proximity to the simulated and measured results.
