Wide Band 3-D Novel flange Microstrip Patch Antenna Design employing Flexible Teflon Substrate
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Abstract
This paper encapsulates a novel microstrip patch antenna design over flexible Teflon substrate having dielectric constant εr= 2.1. The designed antenna exploits a rectangular patch (0.05mm thick) on the radiating patch along with a microstrip feed line and defected ground plane on the other side of the substrate. The radiating element of the flexible flanged antenna design has a finite ground plane to accomplish excellent impedance matching for maximum power transfer. The proposed antenna has an operating bandwidth of 2.9226 GHz, which ranges from 15.197GHz to 18.12GHz, with a resonant frequency of 15.72GHz. This flexible flanged microstrip patch antenna design covers various applications, including Radio Astronomy (15.35GHz to 15.4GHz), Radiolocation/Airborne Doppler navigation aids (15.4GHz to 15.43Hz), Radiolocation (civil)/Airborne Doppler navigation (15.43GHz to 15.63GHz), Radiolocation (military) (15.7GHz to 17.7GHz), FSS Earth Stations (17.7GHz to 20.2GHz), Weather Satellite (18.1GHz to 18.3GHz), and Broadcasting (Satellite) (21.4GHz to 22GHz). The proposed antenna operates with an acceptable voltage standing wave ratio (VSWR) of less than two. The characteristics of the proposed antenna were fabricated on a flexible PVC and analyzed its performance at different antenna parameters, such as Return loss (dB), Impedance Bandwidth, Gain(dB), Directivity(dBi), VSWR, and antenna impedance. The antenna was designed in CST Microwave Studio 2014. The proposed antenna was fabricated and tested using an E5071C Network analyzer and an anechoic chamber. It has been observed that the simulated results legitimately match with the experimental results.
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