The E- and H-plane radiation patterns simulated.06 GHz are shown in Figures 4(a) and 4(b), respectively.
It concludes that with the aid of two notches on the ground, the flow of the current distribute more on excited radiating element, leads wider impedance bandwidth.
It can be predicted that this taper technique, which will be studied further, will be useful for other slot antennas.
It can be observe that the achievable impedance bandwidth of 400 MHz.2 GHz band is obtained due to proper matching and introducing notches on the design.
Department of Electronics and Communication Engineering, National Institute of Technology, Trichy 620 015, Tamil Nadu, naruto shippuden 202 episodes India.The substrate has a dielectric constant.2 and thickness.5748.Many efforts have been made to design CPW-fed antennas capable of single-band operation (.Due to limited testing facilities, only simulated radiation patterns are presented.The widths of the center strip and slot of the 50 ohm CPW feed line are chosen to be 3 mm and.3 mm, respectively.
The gain exhibits only.2 dBi.
The ieee 802.11a defines three frequency hands that can be used.
The length of the C-shaped antenna excites the frequency on the upper portion of the patch (PQR).
The gain-versus-frequency characteristics are given in Figure.
In addition, the two rectangular cutting edges (notches) on the bottom of the ground plane helps to restrict the current flow and further enhance the impedance bandwidth.It can be noticed that acceptable broadside radiation pattern is obtained at the frequency.15 GHz.This extended ground plane dimensions also affect the antenna input impedance and it is found that the ground plane must be optimized for good impedance matching.The simulated gain of the proposed patch antenna at various frequencies is shown in Fig.The better impedance matching can be obtained by varying the angle of tapering and the distance from the center strip.With incorporating CPW-fed extended ground plane, C-shaped patch and notches, the proposed antenna exhibits a bandwidth of 400 MHz (5.02.42 GHz) at 10 dB return loss.(2006), Omar.Reason for failure: Query Not Valid.