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A Wideband Pentagonal Patch Antenna with Rectangular Slots for Wireless Applications

In this research paper, a pentagonal patch antenna has been designed on the 1.6 mm thick FR4 substrate material with a dielectric constant of 4.4 and a size of 66 x 55 mm2. To achieve the wideband characteristics, the rectangular slots are introduced along the 4 sides of the pentagon and the partial ground plane is used of size 20 x 55 mm2. The antenna is designed and simulated in the CADFEKO software using a line feed technique. The proposed antenna has an impedance bandwidth of 1.875 GHz with 3 resonant frequencies 1.7 GHz, 2.74 GHz & 3.259 GHz. The maximum gain for the proposed antenna is 8 dBi, reflection coefficient less than -10 dB and VSWR values are in the standard range. The proposed antenna design can be used for Digital Communication System (DCS 1800), Personal Communication System (PCS 1900), Wireless Broadband (WiBro 2300), Long Term Evolution (LTE 2300, LTE 2500), Bluetooth, Wireless Local Area Network (WLAN IEEE 802.1 b/g), Radio Frequency Identification (RFID), Worldwide Interoperability for Microwave Access (WiMAX) and Industrial Scientific Medical (ISM 2.4) applications.