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Design and Implementation of a RF Powering Circuit for RFID Tags or Other Batteryless Embedded Devices

ABSTRACT

A RF powering circuit used in radio-frequency identification (RFID) tags and other batteryless embedded devices is presented in this paper. The RF powering circuit harvests energy from electromagnetic waves and converts the RF energy Continue reading

Comprehensive Design and Propagation Study of a Compact Dual Band Antenna for Healthcare Applications

ABSTRACT

In this paper, a dual band planar inverted F antenna (PIFA) has been investigated for cooperative on- and off-body communications. Free space and on-body performance parameters like return loss, bandwidth, radiation pattern and efficiency of this Continue reading

Efficiency Improvement of Vehicular Antenna Systems for Ubiquitous Intelligent Systems

ABSTRACT

This paper describes the design of a high-efficiency vehicular roof-mounted antenna for wireless access for vehicular environment (WAVE) communication systems used for ubiquitous intelligent systems. The main objective of the ubiquitous intelligent Continue reading

RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System

ABSTRACT

We report the RF-to-DC characteristics of the integrated AlGaAs/GaAs Schottky diode and antenna under the direct injection and irradiation condition. The conversion efficiency up to 80 % under direct injection of 1 GHz signal to the diode was achieved. It was found Continue reading

A New Metasurface Superstrate Structure for Antenna Performance Enhancement

ABSTRACT

A new metasurface superstrate structure (MSS)-loaded dual band microstrip line-fed small patch antenna is presented in this paper. The proposed antenna was designed on a ceramic-filled bioplastic sandwich substrate with a high dielectric constant. Continue reading

A Compact Annular Ring Microstrip Antenna for WSN Applications

ABSTRACT

A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on Continue reading

The Design of RFID Convey or Belt Gate Systems Using an Antenna Control Unit

ABSTRACT

This paper proposes an efficient management system utilizing a Radio Frequency Identification (RFID) antenna control unit which is moving along with the path of boxes of materials on the conveyor belt by manipulating a motor. The proposed antenna Continue reading

Microstrip Patch Antenna Assisted Compact Dual Band Planar Crossover

ABSTRACT

In Microwave Monolithic Integrated Circuits, crossovers maintain signal purity when transmission lines overlap with each other. A simple crossover for dual band applications, particularly suitable for the development of smart antennas, is presented in this Continue reading

Electromagnetic Burst Measurement System based on Low Cost UHF Dipole Antenna

ABSTRACT

Non-linear high-power devices produce electromagnetic noise (EMN) sources of great intensity that can disrupt and damage the surrounding electrical equipment and devices. This radiative phenomenon is very common at facilities where pulsed power Continue reading

Transformation from a Single Antenna to a Series Array Using Push/Pull Origami

ABSTRACT

We propose a push/pull origami antenna, transformable between a single antenna element and a three-element array. In limited space, the proposed origami antenna can work as a single antenna. When the space is not limited and a higher gain is required, Continue reading

Antenna Arrays for Line-of-Sight Massive MIMO: Half Wavelength Is Not Enough

ABSTRACT

The aim of this paper is to analyze the array synthesis for 5 G massive MIMO systems in the line-of-sight working condition. The main result of the numerical investigation performed is that non-uniform arrays are the natural choice in this kind of application. Continue reading