Multiband CPW-fed slot antennas

Abstract

This paper focuses on the design of two CPW-fed slot multiband antennas. The first prototype works on four bands (2.4, 3.5, 5.2 and 5.8 GHz), and is printed on a 30x32mm2 FR-4 substrate with thickness of 1.5mm. The surface current distribution for each frequency is analyzed to introduce the different slots in the antenna. Following the same design procedure, the second antenna was obtained, this time for five bands (the four bands mentioned above and 1.7 GHz) and it was printed on 30x30mm2 of the same substrate. The measured and simulated results prove that the proposed antennas are suitable for LTE, M-WiMAX, Bluetooth, GSM and WLAN applications. Index Terms-Multiband antenna, coplanar waveguide, (CPW)-fed slot antenna.I.

A Quad-Band CPW Fed Slot Antenna Array for Lte and Wimax Applications

“…Many CPW-fed multiband antenna designs have been proposed [14][15][16][17][18][19][20][21][22][23][24][26][27][28], including several operating below 2 GHz, and such topology has also been widely used to design UWB antennas. While various approaches have been adopted to achieve multi-band antenna operation for planar antennas, a widely used method to achieve this is to introduce slots in the ground plane or in the radiating element [14][15][16][17][18][19][20][21][22].…”

“…While various approaches have been adopted to achieve multi-band antenna operation for planar antennas, a widely used method to achieve this is to introduce slots in the ground plane or in the radiating element [14][15][16][17][18][19][20][21][22]. Using this method, different operating frequencies and their bandwidth are introduced by proper design and placement of these slots on the antenna.…”