antenna-2020
an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver
A Simple and Wideband Decoupling Method for Antenna Array Applications
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In this work, a simple wavetrap-based decoupling method is proposed to suppress the mutual coupling among the antenna elements in a single antenna array. The proposed wavetrap structure consists of a transmission line and a resistor which are in series. By
Side lobe reduction in array antenna by using novel design of EBG.
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A novel design of EBG is used to replace the mushroom like EBG for surrounding the array patch antenna . In order to improve its radiation performances, Electromagnetic band stop for reducing the surface waves effects is presented. The novel design of Triple Side Slotted
Shared Aperture Dual S-And X-band Antenna for Nano-Satellite Applications
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This paper presents the simulated performance of a dual S-and X-band shared aperture antenna design. The antenna is 82 by 82 mm and it has a total height of≤ 4 mm. This size allows the antenna to fit within the parameters of a nano-satellite unit structure. The antenna
A Fat Dipole Antenna for Spark Switched LC Oscillator
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Spark switched LC oscillator (LCO) is used to generate damped sinusoidal signal which has wideband width. Specially, some high power wideband systems use LCO because spark switched LCO using gas or insulating oil can radiate high power microwave without
A Novel Lens Antenna Design Based on a Bed of Nails Metasurface for New Generation Mobile Devices
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This paper presents a lens antenna concept with multibeam performance in the mm-wave band for the next generation mobile devices. The lens consists of metallic vias, etched in the substrate with different height, to obtain different permittivity. The goal is to correct the phase
Miniaturized UWB elliptical patch antenna for skin cancer diagnosis imaging.
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The biomedical imaging shows promising results in many applications such as protein characterization and cancer detection using non-ionizing radiation. Skin cancer is one of the most common types of cancer because it is exposed by sun rays during the day. Many
Quantum Antenna Theory for Secure Wireless Communications
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We provide a very broad outline for a new research area within the domain of Future Antennas, namely quantum antenna (q- antenna ) theory and their applications to building secure digital communication lines. The proposed quantum antenna theory purports to
The optimal synthesis of scanned linear antenna arrays
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In this paper, symmetric scanned linear antenna arrays are synthesized, in order to minimize the side lobe level of the radiation pattern. The feeding current amplitudes are considered as the optimization parameters. Newly proposed optimization algorithms are presented to
Millimeter-Wave Wide Scan Beam Steering 5G MIMO Antenna Array in Mobile Terminals
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(MIMO) millimeter-wave wide scan beam 5G antenna array for 28 GHz application in the mobile terminals is presented. The MIMO antennas operate in 25-30 GHz in the end-fire direction. The antenna array composed of eight-element tapered tilted dipole antennas. The
Multi- Antenna Energy Detector Under Unknown Primary User Traffic
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In cognitive radio (CR) networks, the knowledge of primary user (PU) traffic plays a crucial role in designing the sensing slot duration and synchronization with PU traffic. However, the secondary user (SU) sensing unit usually does not have the knowledge of the exact time slot
Z Shaped like resonator with crystal in the presence of flat mirror based standing wave ratio for optical antenna systems
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This study has outlined the Z resonator shaped with Brewster crystal in the presence of flat mirror for measuring the standing wave ratio. Stability parameter and beam radius are simulated versus thickness, refractive index of the crystal and first and second folding
Patch Antenna at Frequency f= 2. 35 GHz for Telecommunications Applications
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This paper analyzes the effects of electromagnetic radiation from a cellular phone on the head. Various antenna designs were created and analyzed. Special consideration was taken to create an antenna with high efficiency and optimum radiation characteristics in The VSAT (very small aperture terminal) was first developed for commercial use by Hughes Network Systems in the mid-1980s and implemented on the first commercial satellite network for Wal-Mart, operating over a GEO (geostationary) Ku-band satellite. In over 30
A planar UWB semicircular-shaped monopole antenna with quadruple band notch for WiMAX, ARN, WLAN, and X-Band.
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This paper proposed quadruple notched frequency bands ultra-wideband (UWB) antenna . The antenna is a semicircular-shaped monopole type of a compact size 36×24 mm, covering frequency range of 3.02-14 GHz. Four rejected narrow bands including WiMAX (3.3-3.7
Reconfigurable Antenna Systems
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Antennas are a necessary and often critical component of all wireless systems, of which they share the ever-increasing complexity and the challenges of present and emerging trends. 5G, massive low-orbit satellite architectures (eg OneWeb), industry 4.0, Internet of Things
An L-Shaped Slot Circularly Polarized Patch Antenna for Wireless Communication
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A circular-polarized patch antenna with compact size operating at 2.3 GHz band is presented. The antenna utilizes L shaped slot in the radiator in order to achieve circularly polarized radiation pattern. The prototype of the antenna is fabricated and is fed by a 50Ω
The optimal transmission and dual resonant for different geometrical U-shaped THz nano antenna with surface plasmons (SPs) biosensors
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In this study, we focus on plasmonic nanoantenna structures for the U shaped. We will do our simulations with FDTD method (finite difference time domain) by considering commercial software Lumerical. We use U-shaped and play with the geometrical parameters such as
International Workshop on Antenna Technology
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The International Workshop on Antenna Technology (iWAT) is an annual forum for the exchange of information on the progress of research and development in innovative antenna technology. It especially focuses on small antennas and applications of advanced
Effect of Dielectric Materials on Antenna Performance
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In microstrip antenna applications, design parameters are as important as electrical parameters. The desired efficiency of a desired antenna , the low return signal and the quality of the radiation are always desired. The dielectric value of a desired antenna is also
A Novel Hexagonal Microstrip Antenna for UWB Applications
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In this paper, a compact antenna comprised of hexagonal microstrip patch (MSPA) with slotted ground plane is proposed for ultra wideband applications. The radiating patch is in the hexagonal shape which is partially modified to obtain a flower structure. The antenna