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A design of compact size and multi-band composite right-left handed meta-material antennas for wireless applications is presented. The proposed antenna consists of single left handed cell. The series interdigital capacitor and short circuit stub which acts as shunt inductor are considered the main block of the proposed antenna. The proposed antenna is designed to operate at different frequency bands...
Design of a hexagonal monopole antenna capable of operating at 1.5 GHz, 2.5 GHz and 3.5 GHz serving GPS, WLAN and WiMAX applications is reported in this paper. The antenna is comprised of two concentric hexagonal rings with a split along its side length. It is fed by a microstrip line and is printed on a 40×40×3.2 mm3 FR-4 substrate. The effect of the split position on the return loss characteristics...
A very simple multiband monopole antenna system is designed and developed. The proposed antenna system comprises of two alphabetic letter shaped elements: one is C-shaped and another is inverted L-shaped — all together can combinedly operate the wideband frequency range of LTE-1,2,3,7,13,14,22, 40, 43 and WLAN bands. The C-shaped is responsible for leading the lower bands and L-shaped for higher bands...
In this article, a printed patch antenna array for 37 GHz point-to-point wireless links is analyzed. The antenna array consists of five elements with rectangular patch and uniform distribution. It has a compact size of 30.25 × 9.5 mm with operating frequency at 37 GHz that covers future 5G applications. The designed antenna using a substrate with a relative dielectric permittivity of 2.2 and a thickness...
This paper presents the design of a dual band planar monopole antenna operating in the ultra-wide band frequency range. The antenna is optimized by varying the radiator dimensions. Two values of radii are considered in this paper: 8cm and 12 cm. A copper circular disk has been used as the radiator and FR4 material is considered to create the substrate. To have an optimum performance the distance between...
This paper highlights recent developments in antennas with full ground planes, which have been designed for Wireless Body Area Networks (WBANs). These antennas are designed to provide single/dual band operation in 2.4GHz industrial, scientific and medical (ISM) band and 4.9GHz public safety wireless local area network (WLAN)/5GHz IEEE 802.11 WLAN bands. They have significant advantages of compactness,...
Recent trends in wireless communications systems have imposed the need of dynamic frequency reconfigurability in antenna design. This paper presents a novel technique of achieving triple band reconfigurability using PIN diode in the 5–8.5 GHz frequency range on a simple square slot antenna. The return loss greater than −10 dB and VSWR < 2 is observed in desired frequency bands. HFSS Ansoft is used...
In this paper, design of a low-profile, coplanar waveguide fed elliptical patch Super Wide Band (SWB) multiple input multiple output (MIMO) antenna for various applications are presented. Two planar elliptical patch antennas with Microstrip-feed are used as the elements of the MIMO antenna. PTFE (Polytetrafluoroethylene) is used as dielectric substrate whose relative permittivity is 3.5. The proposed...
This paper presents a study on simplest printed antenna for various ultra-wideband (UWB) based applications. The gap between height of ground plane and lower edge of patch along width is varied to observe the magnitude of S11 in the UWB frequency range for the appropriate antenna dimensions. The proposed antenna exhibits a 10 dB impedance bandwidth from 3.1 to 10.5 GHz, which constitutes about 108...
In this paper, a circularly polarized antenna is proposed for satellite communication system. Commercially available Finite Integration Technique (FIT) based software Computer Simulation Technology (CST) microwave studio and finite element method solver based High Frequency Structural Simulator (HFSS) have been used in this analysis. The proposed antenna achieved 3dB axial ratio of 30 MHz with −10dB...
In this work a capacitively-fed modified folded-slot antenna for body area network applications is presented. The antenna is placed on a uniform cylinder, which simulates a human forearm. The electromagnetic parameters of the human body were calculated as a weighted average based on the fat, muscle, skin, blood and bone composition for the arm. The experiment was conducted by simulations using Ansys...
A low profile UWB antenna for wearable application is proposed. To accomplish the wideband characteristic, an elliptical patch, tapered feeding structure, and vias are adopted. The proposed antenna has a wide 10-dB return loss bandwidth of 5.6 GHz (2.9 GHz – 5.2 GHz and 7.1 GHz – 10.4 GHz). It can simultaneously cover low and high UWB bands (3.4 GHz – 4.8 GHz and 7.25 GHz – 10.25 GHz).
Antennas are the key components for far-field wireless transmission of data and power by electromagnetic (EM) radiation. These passive devices are the only radiating structures in biomedical communication systems, so its design needs to be carefully studied to ensure human safety. In this paper, we analyse and discuss the effect of wearable and implantable biomedical antennas on humans and vice versa...
This paper presents a new multiband antenna is proposed for Wireless communication. Commercially available software High Frequency Structural Simulator (HFSS) and Computer Simulation Technology (CST) microwave studio was adopted in this investigation. The presented antenna consists of a slotted rectangular patch with a rectangular ground plane. The antenna exhibits four resonates at 2.05 GHz, 2.45GHz,...
Free 60 GHz radios have unique characteristics that make them significantly different from traditional 2.4GHz or 5GHz license-free radios and from licensed-band millimeter-wave radios. These characteristics make 60 GHz radios more attractive for wireless systems. In this paper, dipole like Vivaldi antenna is designed to meet the requirements of 60GHz band. The feeding circuit is 100 Ω differential...
A compact dual-band planar inverted-F antenna (PIFA) working in the GPS (1572 MHz), DCS (1800 MHz) and WiMAX (3500 MHz) frequency bands is presented. The antenna based on split-ring (SR) resonators provides 30% and 11% impedance bandwidth performance at the respective bands. Also, the antenna exhibits uniform radiation pattern at both frequency bands.
Body-area networks (BANS) are wireless communication systems that enable communications between wearable and/or implanted into the human body electronic devices [1]. Such systems are suitable for mobile computing applications, emergency rescue and wireless telemedicine.
The main purpose of this paper is to design implantable printed antenna in the 2.4–2.5 GHz Industrial, Scientific and Medical service band for wireless Implantable body area network (WiBAN) Applications. Two type of printed antenna which are monopole antenna and loop antenna are designed by CST Microwave Studio Suite and the performance of both antenna are evaluated based on gain, radiation pattern,...
Optical nanoantennas are emerging as one of the key components in the future nanophotonic and plasmonic circuits. The first optical nanoantennas were in a form of simple spherical nanoparticles. Currently more complex Uda-Yagi nanoantenna structures were demonstrated. These nanoantennas enhance radiation of single emitters and provide well defined directional radiation. In this contribution we present...
With the recent evolution of wireless systems such as cognitive radio, new antennas have to be developed to provide large bandwidth, compact size and especially adaptive parameters for changing environments. The antennas are become more again an essential part of wireless systems. They play a fundamental role both in the propagation and also at a system level. New antennas models must be developed...
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