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The local minimum in the atmospheric attenuation that extends through most of the E-Band (60–90 GHz), together with the increased antenna gain (for a given physical size) when compared to lower frequencies, makes it particularly attractive for high-speed point-to-point wireless communication.
BACKGROUND — One of the diverse applications of RF technology is in voice/mobile telephony signal transmission. This age old introduction has revolutionised the concept of communication in terms of providing easy & instant connectivity to 95% of human population, forming a vital backbone to the telecommunications industry. The RF technology, comes with some paucity in terms of regional coverage...
Wireless access into and out of buildings is a fundamental requirement of current and future successful handheld device usage. A number of factors, guided by energy efficiency, can negatively influence the successful propagation of such wireless signals through the building envelope.
Aim • A method to identify landmines in various burial condition. Scope • Develop an autonomous UWB ground penetrating radar able to measure bi-static two port S-parameters. • Develop processing to reduce ground effects noise and clutter. • Identify and adapt variants of the Hidden Markov model capable of being trained to detect and identify a range of landmines.
The Use of graphene for a CPW fed planar circular monopole antenna with ultra wideband (UWB) in terahertz (THz) is proposed. Due to the unique chemical, thermal, mechanical, electronic and optical properties of graphene [1], it has attracted a lot of attention about its potential applications in many fields. However, the use of graphene in antennas nad other passive devices is still less investigated...
The 7 GHz bandwidth recently allocated worldwide in the 60 GHz band for unlicensed wireless applications has opened the possibility to a wide range of indoor/outdoor wireless gigabit-per-second applications [1].
A Discrete Random Variable for Raindrop Wave Propagation Modelling. This presentation describes a technique for generating a discrete random variable (DRV) for raindrop diameter when using a raindrop geometry model that is not continuous in nature. This can be applied to high-frequency canonical problems such as satellite dish simulations, where modelling precipitation at the particulate level enhances...
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