High gain wideband and multi-band on-demand reconfigurable antenna for modern wireless application

Abstract

This paper proposes a wide band and multiband frequency reconfigurable antenna that can operate in the UWB, GSM, GPS, 4G LTE, WLAN, and WiMAX bands. The antenna is made up of a trapezoidal-shaped monopole radiator, which was inspired by a rectangular monopole antenna. The ground plane is modified by embedding T and L-shaped slots to notch the desired operating frequency. The proposed antenna can switch to six different frequencies using RF PIN diodes, making it suitable for modern wireless applications. A multilayer frequency selective surface (FSS) reflector is presented to improve the gain of the proposed reconfigurable antenna. The low-profile design achieved a significant increase in gain while retaining the UWB antenna's excellent impedance bandwidth. Because of the use of the FSS reflector, the antenna's average peak gain has increased from 6 to 10.4 dBi. The proposed antenna has a wide switching capability, which validates its unique feasibility for high-speed multiple Internet of Things applications via a common embedded platform under various applications.

Semicircular Slot Based Uwb Microstrip Patch Antenna for Variable Band Notched Applications

“…Demand for wireless connectivity has increased, the demand for higher data rate and hence higher bandwidth and transmission frequencies [1]. The UWB frequency range is specified from (3.1-10.6) GHz according to the Federal Communication Board (FCC) [2], [3].…”