"multifrequency antennas"

Study of a Method for Increasing Isolation Between Closely Spaced Elements integrated in Multi-Standard Multi-Antenna Systems

This paper presents the study of a method used for decoupling radiating elements in the case of a multiband structure dedicated to small LTE Smart Cells. This method consists in using a power splitter and a phase shifter connected between the feeds …

Design of a Multiband LTE MIMO Antenna System Integrated in its Real Environment

This paper presents a multiband MIMO antenna system with four accesses, with very good performance despite the complex environment that surrounds it. This environment consists of a thick plastic radome protecting the antenna and an aluminum metallic …

Dual-Matching for Single Resonance Miniaturized Antenna for IoT applications

A miniature antenna working in European, Asian and Australian ISM sub-GHz bands is presented for IoT application. The antenna was first designed and simulated to achieve a low quality factor, i.e. having good matching at 896MHz. A second-order …

Multiband rectangular dielectric resonator antenna for 5G applications

This paper introduces the design and simulation of multiband dielectric resonator antenna (DRA) for the fifth generation (5G) of cellular networks. The radiating element is a unique rectangular shaped DRA element with a distribution feeding technique …

Design of miniature antennas for IoT applications

This paper discusses the design of miniature antennas for internet-of-things (IoT) applications. Differently from other communication systems, IoT devices have almost no bandwidth requirements, allowing for strong antenna miniaturization. However, …

Environmental sensitivity of miniature antennas for IoT devices

This paper addresses the problem of the environmental sensitivity of miniature antennas to be integrated in Internet-of-Things devices. A representative example regarding the design of a dual-band miniature antenna for geolocation applications is …

Dual-Band Printed Fractal Monopole Antenna for LTE Applications

In this letter, a dual-band fractal monopole antenna suitable for Long Term Evolution (LTE) standard is proposed. The antenna geometry is based on a perturbed planar Sierpinski fractal shape, whose geometrical descriptors are determined by means of a …

A Monopolar Quad-Band Antenna Based on a Hilbert Self-Affine Prefractal Geometry

In this letter, the design of a quad-band antenna is presented. The antenna has a planar geometry printed on a dielectric substrate orthogonal to a reference ground plane and its geometrical parameters are optimized starting from a Hilbert-like …

Dual-Band Spline-Shaped PCB Antenna for Wi-Fi Applications

In this letter, a dual-band printed circuit board (PCB) antenna suitable for Wi-Fi applications is described. The antenna geometry is modeled by means of a spline curve and a partial metallic ground plane. The proposed antenna is suitable for Wi-Fi …