Concept

Wideband

Publications associées (25)

A mmWave Low Complexity and Low-Cost Super Wideband Dual-Polarized Aperture Coupled Antenna for 5G Applications

Advanced antenna system (AAS) is a viable option for 5G millimeter-wave (mmWave) applications. AAS single element is favored to be dual-polarized, wideband, high gain, and compact in order to be utilized for 5G antenna arrays. In this paper, a low complexi ...

Ieee-Inst Electrical Electronics Engineers Inc2024

Toward Metantennas: Metamaterial-Based Antennas for Wireless Communications

Yuanyan Su

Antennas have historically been the most common electromagnetic (EM) technology for wireless communication systems. Antenna as hardware is entirely dependent on the EM properties of the materials used, mostly related to the permittivity and permeability. I ...

Piscataway2023

Design Methodology for Wideband Bowtie Patch Antenna for 5G mmWave Applications

Anja Skrivervik, Abolfazl Azari

Millimeter wave (mmWave) frequencies has become a research area of interest in recent years because of providing broad available bandwidth and thus higher data rates. Wideband mmWave antenna is one of the important development areas in wireless communicati ...

IEEE2023

Reference Oversampling PLL Achieving −256-dB FoM and −78-dBc Reference Spur

Kyojin Choo

This article presents a low jitter, low power, low reference spur LC oscillator-based reference oversampling digital phase locked loop (OSPLL). The proposed reference oversampling architecture simultaneously offers a low in-band phase noise, a wide-bandwid ...

IEEE2021

Antennas for CubeSat Communication

Miroslav Veljovic

CubeSats are a type of small satellites (< 500 kg) that weigh several kilograms and consist of multiple Units (U) measuring 100 × 100 × 113.5 mm3. CubeSats emerged as a low-cost alternative to conventional large satellites, and have since demonstrated capa ...

EPFL2020

All-optical flip-flops based on dynamic Brillouin gratings in fibers

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Andrey Denisov

A method to generate an all-optical flip-flop is proposed and experimentally demonstrated based on dynamic Brillouin gratings (DBGs) in polarization maintaining fibers. In a fiber with sufficiently uniform birefringence, this flip-flop can provide extremel ...

Optical Society of America2017

Wideband generation of pulses in dual-pump optical parametric amplifier: theory and experiment

Camille Sophie Brès, Mohammad Amin Shoaie, Amirhossein Mohajerin Ariaei

The generation of pulses in dual-pump fiber optical parametric amplifier is investigated. Theoretically, it is shown that in an analogical manner to pulse generation in single-pump fiber optical parametric amplifiers, the generated pulse shape depends on t ...

Optical Society of America2014

Novel approach to the measurement of ultra wideband antenna efficiency

Anja Skrivervik, Nuno Miguel Faria Pires, Mohsen Koohestani

This Letter presents a new cavity-based approach for measuring the radiation efficiency of Ultra Wideband (UWB) antennas. The procedure is based on a generalized Wheeler cap method (GWCM ) that is only practical for narrowband measurements and so this Lett ...

Institute of Electrical and Electronics Engineers2013

Performance of Instantaneous Microwave Analysis by Parametric Channelized Receiver Through Time Domain Monitoring

Camille Sophie Brès

For many applications, ranging from commercial, surveillance, or defense, it is essential to analyze the frequency components of a captured microwave signal over a wide bandwidth in real time and with high resolution. Various photonic approaches have been ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Modeling, design and characterization of a very wideband slot antenna with reconfigurable band rejection

Julien Perruisseau-Carrier

An antenna exhibiting a very wide bandwidth with reconfigurable rejection within the band is presented. The proposed topology is versatile in terms of the number of available antenna states and location of the rejection frequencies, and also allows the ope ...

Institute of Electrical and Electronics Engineers2010

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