The paper proposes a high gain, metamaterial based super wideband (SWB) antenna. SWB antenna has two inverted U slots which are responsible for notches at 3.5 GHz and 5.5 frequencies. A flower-shaped slot is etched from the radiator to obtain characteristics. dimensions of 30×35 ×1.5 mm3 with FR4 substrate. frequency bandwidth 3.1 - 15 S11 < -10dB. unit cell designed simulated permittivity perm...

High gain antennas have many applications in wireless communication systems as they produce focused and narrow beamwidth, which allow for more precise targeting of the signal. Therefore, various gain enhancement techniques for antennas have been studied in the past decades [1–21]. Specifically there are three important methods to achieve this purpose: (1) Using antenna array, (2) Adding superst...

this paper presents a low-cost compact planar microstrip-fed monopole antenna and its four-element array design for ultra-wideband (uwb) wireless communication and target detection applications, respectively, operating in the frequency span of 3 ghz to 11 ghz. a prototype was fabricated and then measured based on optimal parameters. the results of reflection coefficient (s11) and radiation patt...

In this paper, a directional GPS antenna for L1 frequency 1575 MHz with RHCP and a high directive gain is proposed for indoor positioning applications. The proposed antenna is made of a standard off the shelf GPS patch antenna with an additional conical reflector to enhance the gain and the beamwidth of the antenna. The angle of the cone reflector is optimized by HFSS 11 software. Finally, the ...