Design of frequency reconfigurable multiband compact antenna

Abstract

The design of a reconfigurable antenna that can operate at different frequencies to fulfill the needs of WLAN antenna applications from 1 to 10 GHz and WIMAX 3.5 GHz is described in this article. Spread spectrum signaling is implemented in most modern communications systems to reduce crosstalk interference cau sed by numerous users utilizing the same channel in multi-carrier communication. This is owing to its high efficiency, which reduces multipath fading sensitivity and improves data security against attackers, making spread spectrum signals challenging to jam. The antenna may work in four dual-band modes over eight distinct bands. A slot in the reflector and a defective ground structure is employed to achieve a small size, while PIN diodes are used for frequencies reconfigurability in the suggested antenna. The primary goal of this article is to consolidate the number of antennas used in various mobile phone applications into a single antenna, which will cover 1G, 2G, 3G, 4G, WiFi, and Bluetooth antenna applications. This is a WiMAX/WLAN-compatible reconfigurable multi-band antenna with two PIN diode switches. Advanced Design System) and manufactured on a FR4 carrier, with a compact area of 50×45 mm2 and a ground groove carrier.