CPW-fed Antenna Covering Wimax 2.5/3.5/5.7 GHz Bands

Compact Acs-Fed Circular-Arc-Shaped Stepped Monopole Antenna for Tri-Band Wlan/Wimax Applications

“…According to the measurements, the average gains are about 1.79, 2.12, and 2.43 dBi for the 2.4, 3.5, and 5.7-GHz bands, respectively. The gains of the proposed antenna are a little lower than those CPW-fed antennas in [7,8], which are mainly due to the single lateral ground plane structure and the compact size. However, the gains are still reasonable, which makes it suitable for the practical applications.…”

“…Hence, it is highly desirable to design a multiband antenna which can meet both the WLAN and WiMAX bands. Therefore, different types of multiband antennas have been proposed to cater the multiband requirement, such as [4][5][6][7][8][9]. For example, a tri-band monopole antenna with double coupled C-shaped strips for WLAN/WiMAX applications is presented [4], open L-slot antenna with a slit and a strip for WLAN/WiMAX triband operation [5,6] presented a tri-band design of a circular slot patch antenna for WLAN/WiMAX applications.…”

“…Therefore, in order to design miniaturized antenna, a coplanar waveguide (CPW)-fed is presented Miniature triband CPW-fed monopole antenna embedded with dual U-shaped slot is reported [7]. In literature [8], a compact CPW-fed planar monopole antenna with triband for WLAN and WiMAX operations by inserting two I-shaped notched slots and an open-ended U-shaped slot on the edge of the radiation patch is presented.…”

Planar Compact Multi-Band C-Shape Monopole Antenna With Inverted L-Shape Parasitic Strip for Wimax Applications

“…The related monopole antenna (MA) designs for WiMAX applications have been presented by using dual U-shaped MA [1], inverted L-shaped MA [2], rhomb shaped MA with slits [3] or modified Minkowski fractal geometry [4], inverted-F antenna [5], MA with branch slits [6], MA with rectangular horizontal strips and trapezoidal ground plane [7], mirrored-L MA [8], asymmetric rectangular MA with additional strips [9], rectangular MA with a circular disc [10], MA loaded with four different grooves [11], MA using branch strips [12], pentagonal MA with two thin bent slots [13], MA with an etched ∩-shaped slot and a parasitic ring resonator [14], MA with two semi-circle strips [15], T-shaped MA with a trapezoidal ground plane [16], MA with C-shaped and Sshaped meander strips [17] or with C-shaped and L-shaped monopole strips [18] and rectangular MA with parasitic outside ring [19]. However, there is the disadvantage of being larger antenna size for these above MAs [1-7, 9, 10, 14-17, 19] or complex antenna structure [8,[11][12][13]18].…”

“…This proposed planar monopole antenna also provides nearly omni-directional radiation patterns with maximum measured peak antenna gains and radiation efficiencies of 1.6/1.9/2.9 dBi and 91/96/94% across the operating bands, respectively. Compared with the overall antenna volume including the ground plane for the presented antenna designs in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], this proposed monopole antenna has more than 25% antenna size reduction to obtain compact operation, which is suitable for embedding into the USB dongle. Details of the proposed monopole antenna design are described in this study, and the related results for the obtained performance operated across the 2.6/3.5/5.5 GHz bands are presented and discussed.…”