Design of Compact Reconfigurable Miniaturized Triple-band filtenna for IoT Applications

Abstract

The Microstrip Patch technology offers a compact Triple-band Antenna for IOT Application achieves reduced filter size and desired output. Novel Compact Microstrip Patch Antenna and 2x2 Antenna Array with Band Pass Filter for IoT Application in WSNs/WLAN/LTE bands is proposed. The Compact rectangular antenna is designed with inverted C Shape for the dual band resonance at 3.5/5.8 GHz and the 2x2 antenna array is designed for the triple band resonances at 2.4/3.5/5.8 GHz fed with 50Ω microstrip feed line to support WSNs/WLAN/LTE bands for IoT Applications. The parameters such as Return Loss, Gain, Directivity, Radiation Pattern of the single antenna and antenna array are obtained with high performance. The single antenna shows directional radiation pattern with the gain value of 4dBi and 6.5dBi and resonates at 3.5/5.8 GHz. The antenna array shows directional radiation pattern with the gain value of 5/7/9 dBi and resonates at 2.4/3.5/5.8 GHz respectively. Finally the LPF and HPF are cascaded to develop a Band pass filter (BPF), for passing frequencies 2.4/3.5/5.8 GHz and analyzed. From the comparision of Single antenna and Antenna array, 2x2 Antenna array achieves highest performance with triple band resonance. The proposed antenna parameters are fabricated and analysed using Vector Network Analyser.