Design of a compact reconfigurable antenna with triple band switchable characteristics

Abstract

Antennas with reconfigurable functionality is the mostly preferred one in the antennas field. In such scenario, a work is presented in this article proposing a frequency reconfigurable antenna with a compact PIFA kind of structure. The antenna structure has the folded radiating structure and embedded with some lumped resistance and distributed capacitance, inductance for providing the impedance matching across desired bands for wireless communication. Further, the switching elements (PIN diodes-BAR64-02V) are inserted in the gap between the long-meandered line structure for attaining the switchable characteristics among single band (0.68-0.98 GHz), dual band (0.70 -0.96 GHz, 2.26 -2.65 GHz), and triple band (0.69 -0.99 GHz, 1.89 -2.78 GHz, 3.64 -4.1 GHz) respectively. The impedance bandwidth is considered according to S11 < -6 dB criteria for the mobile communication applications. The proposed antenna is suitable for smartphone, laptop and portable devices with GSM/PCS/WCDMA/UMTS/LTE communication applications.

Design of dual band slotted reconfigurable antenna using electronic switching circuit

“…The first band was operating from 2.48 GHz to 2.53 GHz and the other band from 2.83 GHz to 2.85 GHz. The study of [24] illustrated its multimode monopole antenna design by switching the frequency response using PIN diodes, producing eight different bands. Three diodes were used for the switching purpose, thus causing a shift in the operating bands.…”

A Coplanar Waveguide Fed Asymmetric Ground Frequency Reconfigurable Antenna

“…The reconfigurable antennas consist of three types of configurations like frequency reconfigurability, polarisation reconfigurability and hybrid reconfigurability (both frequency and polarisation reconfigurability) [16]. Commonly two major types of switches, PIN diodes and RF MEMS are used in the design of frequency reconfigurable antennas for wireless applications [17,18].…”