Ultra-Wide Band Diversity Antenna for Omnidirectional Coverage

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Laser phase noise remains a limiting factor in many experimental settings, including metrology, time-keeping, as well as quantum optics. Hitherto this issue was addressed at low frequencies ranging from well below 1 Hz to maximally 100 kHz. However, a wide ...

Soft switching in dual-active-bridge (DAB) converters enables their efficient operation at high frequencies, where the reduction in the size of magnetic components could result in ultra-high power densities. Nonetheless, losing soft-switching at high frequ ...

Today, a large portion of mobile data traffic is consumed behind the shielding walls of buildings or in the Faraday cage of trains. This renders cellular network coverage from outdoor cell sites difficult. Indoor small cells and distributed antennas along ...

In this study, one method of using antennas based on fractals to cover few kinds of public protection and disaster relief (PPDR) communications was presented. Dedicated antenna forms, necessary for antenna design by 5G implementation, were enhanced to suit ...

Wireless communications are currently faced with two main challenges. The first challenge stems from the enormous number of Internet of Things (IoT) devices that transmit very small amounts of data. The second challenge is the need for ever-increasing data ...

In this paper, a wideband four port 2-6 GHz antenna is proposed. One-, two-, and four-port antennas are implemented and characterized between 2 and 6 GHz. The isolation between the ports is improved by connecting and optimizing the ground plane sections. T ...

In-band full-duplex systems promise to further increase the throughput of wireless systems, by simultaneously transmitting and receiving on the same frequency band. However, concurrent transmission generates a strong self-interference signal at the receive ...

A simulation model and an experimental characterization of energy saving glazing transparent to mobile communication frequency up to 40 GHz is presented. A previous study showed that laser structured energy efficient windows with a frequency selective surf ...

Wearable electronics are occupying an increasing portion of our daily activities. The span of wearable applications extends from purely medical, over different security services to various sports and fashion devices. Antennas play one of the most important ...

Modern communication devices demand challenging specifications in terms of miniaturization, performance, power consumption and cost. Every new generation of radio frequency integrated circuits (RF-ICs) offer better functionality at reduced size, power cons ...

Ultra-Wide Band Diversity Antenna for Omnidirectional Coverage

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High-frequency broadband laser phase noise cancellation using a delay line

Enhanced-DAB Converter: Comprehensive Design Evaluation

Adding Indoor Capacity without Fiber Backhaul: An mmWave Bridge Prototype

On the 5G Communications: Fractal-Shaped Antennas for PPDR Applications

Physical Layer Aspects of LoRa and Full-Duplex Wireless Transceivers

Wideband Multiport Antennas

On the Implementation Complexity of Digital Full-Duplex Self-Interference Cancellation

Wide band-pass FSS with reduced periodicity for energy efficient windows at higher frequencies

Robust Wearable UHF Antennas for Security Applications

Copper / low-k technological platform for the fabrication of high quality factor above-IC passive devices