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This paper purposed the plugs-shaped monopole antenna by adding stub and slot etching tuning technique on patch for the impedance bandwidth enchantment and the capability to support the applications in DCS, PCS, WCDMA/UMTS, WLAN IEEE 802.11 b/g and Bluetooth system. The prototyped antenna structure has been fabricated on FR4 printed circuit board (FR4) with dimensions of 36×40 mm2. The measured result...
This paper proposes the ring antenna with circular probe feeding for MIMO systems. The ring antenna structure was adjusted by using the circular probe feedings on the ground plane to increase bandwidth and arrangement the elements of array antenna in four cases. The structural tuning technique was used Computer Simulation Technology (CST) program to analyze the antenna characteristics such as S11,...
This paper proposes the design of high gain and broadband waveguide antenna which is fed by using a microstrip antenna is at 2.33 to 5.24 GHz. A feeding network is broadband microstrip antenna with the flower-shaped combined with the rectangular waveguide antenna to improve the directive gain. The proposed antenna can be fabricated on conventional low-cost materials by using FR4 and aluminum plate...
This paper proposes the design of radio-frequency identification tags to reduce the effect of material. The proposed tag consists of planar inverted-F type antenna with electromagnetic band gap (EBG) and the micro-chip UCODE I2C at frequency of 923 MHz. The antenna is designed to be small by using technical bending and controlling the EBG reflection phase that placed on material objects. From the...
This paper presents the design of O-shape monopole antenna with rectangular tuning stub to support the digital TV system which is simulated by using CST program. This antenna is designed coverage the digital TV system. The dimension of prototype antenna was 60 mm. × 100 mm. with etching technique and tuning impedance matching on antenna patch structure for bandwidth expansion. The measurement results...
This paper proposes the rectangular monopole antenna with arrow-shaped slot etching for multiple-input multiple-output (MIMO) application. The presented antenna system works efficiently in the frequency range of 3.1–10.6 GHz for ultra-wideband (UWB) communications which are defined by the Federal Communications Commission (FCC) band. The proposed antennas were fabricated on FR4 substrate with dimensions...
This paper focuses on a study and design of an antenna which it have been proposed for use in RF energy harvesting at the WLANs band of 2.45 GHz. An antenna is designed by using microstrip antenna with metamaterials for the gain enhancement and energy harvesting developement. The proposed antenna is consisted of a patch microstip antenna surrounded by electromagnatic band gap (EBG) to suppress the...
This research is presented the comparison of geometry-shaped monopole antennas having three models those are rectangle, triangle and circle-shaped. Each proposed antenna has been the step-shaped etching technique on ground plane to enlarge bandwidth. These antennas were designed by CST program to simulate the variety of result such as reflection coefficient, gain and radiation patterns then the simulation...
This paper presents the directive gain enhancement of rectangular slot antenna with L-shaped and double I-shaped slot etching and metal box adding technique at 2.45 GHz for wireless communications. In many previous antenna researches, a large size of traditional antenna and low directive gain are the defect of antenna. That defect can be overcome by increase of bandwidth. In this paper, by etching...
This article presents the study of feed line stub model in T-shape tuning CPW-fed Rectangular Slot antenna. The structure of the antenna consists of T-shape tuning rectangular stub antenna on the same alignment with the ground plane. This is to apply with the Wide Band Antenna such as IEEE 802.11b/g that has two frequencies which are 2.4 GHz (2.40 - 2.48 GHz) IEEE 802.16e 3.5 GHz (3.4 - 3.69 GHz),...
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