Microstrip‐line FED beak‐shaped monopole‐like slot UWB antenna with enhanced band width

Abstract

A novel microstrip‐line fed beak‐shaped monopole‐like slot UWB antenna is proposed for enhanced ultrawideband, bluetooth, GPS, and GSM applications. In which, a beak‐shaped radiating patch is fed by a microstrip‐line and a square ground plane is defected by etching a hexagonal slot. Two triangular slots in the beak‐shaped radiator and hexagonal‐shaped defect in the ground plane are used to obtain GPS (1520–1590 MHz), GSM (1770–1840 MHz), and bluetooth (2385–2490 MHz). Furthermore, the bandwidth of an antenna is increased by etching a triangular slot at the junction of patch and feeding line. The antenna is fabricated on 1.6 mm thick commercial available FR4 material. The antenna offers an enhanced bandwidth of 24.26 GHz from 0.24 to 24.5 GHz with the voltage standing wave ratio <2. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2624–2628, 2014

A Dual Band Fractal Slot Antenna Loaded With Jerusalem Crosses for Wireless and Wimax Communications

“…On the other hand, slot antennas regularly have wider bandwidth than patch antenna with bidirectional pattern, high gain and directivity [10,11]. In addition, slot antennas are suitable for achieving circular polarization which has been studied in some researches with slot feeds parameter tuning [12,13].…”

Compact printed high rejection triple band-notch UWB antenna with multiple wireless applications

“…Two rectangular slot in the beak-shaped radiator and the hexagonal-shaped DGS are used to obtain GPS (1.520-1.590 GHz), GSM (1.770-1.840 GHz) and Bluetooth (92.385-2.490 GHz). Furthermore, bandwidth of the antenna is enhanced by etching a triangular slot at the junction of patch and feed line [6]. As reported in [7], multi-band planar monopole is obtained firstly by etching center portion of the radiating patch which is diamond-like shape and secondly by inserting quarter wavelength slits on the central part of radiating patch.…”

A compact slot antenna configuration for ultrawideband (UWB) terminals and mobile phones

“…There may be some configurations suitable for both applications. The UWB antenna has a variety of prototypes with two‐dimensional (2‐D) or three‐dimensional (3‐D) geometry . The mobile phone antenna prototypes are much less.…”

“…Compared with the abovementioned antenna types, printed slot antenna with microstrip line feeding is easier to obtain low profile in a mobile phone since its top and bottom layers are both involved in antenna design. There are various publications on UWB slot antennas with rectangles, circles, ellipses, and hybrid shapes . The slots with open end and asymmetric geometry are feasible to be arranged at the side edge of a mobile system circuit board.…”

“…There are various publications on UWB slot antennas with rectangles, 2-7 circles, 8 ellipses, 9 and hybrid shapes. [10][11][12][13] The slots with open end and asymmetric geometry are feasible to be arranged at the side edge of a mobile system circuit board. And, the antenna frequency bandwidth can be tuned to the left to cover mobile frequency band by enlarging the slot length within the circuit board range.…”