Multiband Slotted Planar Inverted-F Antenna using Reactive Impedence Surface for Wireless Applicatios

Abstract

This research work presents a low profile slotted planar invertedF antenna (PIFA) on a reactive impedance surface (RIS) for multiband. The quad-band frequency antenna for 2.4 GHz (WLAN), 4.2 GHz (C-band satellite downlink), 7.1 GHz (C-band satellite uplink), and 9 GHz (X-band )for wireless applications. The structure of the proposed PIFA has a compacted patch size of 23.33 mm × 2.66 mm × 1 mm placed on a dielectric substrate flame retardant 4(FR4) material, along with tangent loss = 0.02. The proposed antenna used two dielectric substrates whose heights are h1 = 1.59 mm and h2 = 1 mm . The rectangular slot is added in a radiating patch of the PIFA for multiband operations. The proposed antenna improves the parameters such as reduction scale, efficiency, narrow bandwidth, and gain enhancement. The slotted PIFA shows a quad-band with an S11 <-10 dB bandwidth of approximately 15.83% (2.24-2.62 GHz), 11.19% (3.93-4.4GHz), 12.67% (6.90-7.80GHz) and 10.55% (8.29-9.24GHz) under measurement. The proposed antenna design is excited by 50Ω microstrip line feed. The antenna exhibits radiation pattern, gain, and impedance matching across their operating bandwidths to demonstrate the benefits of multiple PIFA.

Design of Inverted F-Shape Antenna at 2.35 GHz for S-Band Applications

“…As a result of limited space that is available in the wireless devices, a low-cost, compact antenna design is essential [1,2]. Integrations of Wi-Fi, Bluetooth, and LTE in some mobile devices with high-speed and accurate data transmission is becoming important today.…”