A5046091467- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Energy Harvesting in Wireless Networks
- Antenna Design and Optimization
- Advanced Antenna and Metasurface Technologies
- Spectroscopy and Laser Applications
- Bluetooth and Wireless Communication Technologies
- Radio Astronomy Observations and Technology
- Millimeter-Wave Propagation and Modeling
- Advanced MIMO Systems Optimization
- Cybercrime and Law Enforcement Studies
- Electromagnetic Compatibility and Measurements
- RFID technology advancements
- Microwave and Dielectric Measurement Techniques
- Wireless Body Area Networks
- Satellite Communication Systems
- Laser Design and Applications
- Underground infrastructure and sustainability
- Optical and Acousto-Optic Technologies
- Ocular and Laser Science Research
- Big Data and Business Intelligence
- Quality and Safety in Healthcare
- Analytical Chemistry and Sensors
- Indoor and Outdoor Localization Technologies
- Geotechnical Engineering and Underground Structures
Queen Mary University of London
2012-2025
University of Bristol
2024
University College London
2014-2021
University of Birmingham
2018
Olympic Medical Center
2012-2013
Antenova (United Kingdom)
2004-2012
Cranfield University
2005
University of Rochester
2004
Trinity House
1993
Electronics and Radar Development Establishment
1981
A discussion of the importance accurate measurements atomic oscillator strengths in astrophysics is followed by an analysis accuracy that potentially available together with a critical survey most useful techniques. full given furnace method used Oxford, and first results obtained for few lines Mn I are presented. It shown even this straightforward can some circumstances suffer from uncertainties about state thermodynamic equilibrium.
Recently, much of the literature on sharing in cities has focused economy, which people use online platforms to share underutilized assets marketplace. This view is too narrow for cities, as it neglects myriad ways, reasons, and scales citizens urban environments. Research presented here by Liveable Cities team form participant workshops Lancaster Birmingham, UK, suggests that a broader approach understanding essential. The research also highlighted tools methods may be used help identify...
The design of antennas for small user equipment has many years relied on the use unbalanced designs – usually ingenious variants monopoles and inverted-L antennas. As size is reduced, become increasingly problematical because their input impedance radiation properties strongly dependent groundplane position it.
The split cylinder resonator method is improved for nondestructive and accurate measurement low permittivity materials at multiple frequency points. dielectric constants of flat substrate are calculated based on a rigorous mode match analysis the TE/sub 011/ mode. loss tangent also approximately calculated. properties two commercial substrates have been measured frequencies. results demonstrate that this technology capable accurately characterizing versus in way.
This data article presents the UK City LIFE1 set for city of Birmingham, UK. is a new, comprehensive and holistic method measuring livable sustainability performance cities. The Birmingham comprises 346 indicators structured simultaneously (1) within four-tier, outcome-based framework in order to aid their interpretation (e.g., promote healthy living long lives, minimize energy use, uncouple economic vitality from CO2 emissions) (2) thematically complement government disciplinary siloes...
The evolution of cities is directly linked to their subsurface: the local geology and hydrogeology alongside history human interventions are basis for present structure organisation affect prospects future developments within above ground. underground serves multiple purposes in including; providing stability buildings, drinking water materials, serving as a heat source or retention basin, accommodating infrastructure developments. In face growth predictions climate change, interdependencies...
Gigascale antenna arrays (3 to 4 orders of magnitude more elements than the largest ever built) are a critical component proposed space-based solar power (SBSP) systems. The transmitting in orbit expected be up 3 km <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , while receiving on Earth have been at 77 . There many challenges and risks design, modelling, operation deployment gigascale SBSP system. This paper highlights these risks,...
The collision broadening and shift of the lithium resonance line, formed in absorption under low pressures helium, have been measured. (half) half-width gamma beta are found to vary with helium density N according following relations: /N=(1.73+or-0.10)*10-9 rads-1 atom-1 cm3 /N=(0.00+or-0.05)*10-9 rad s-1 cm3. A recent theoretical calculation is reasonable agreement these results.
Abstract A new method of dielectric‐constant measurement is developed. The dielectric constant ε r RF/microwave substrate extracted by combining the microstrip ring resonator with Ansoft HFSS electromagnetic simulation software. developed has two advantages: (i) characterization versus multiple frequency points, and (ii) compatibility electronics design automation (EDA) software tools. This can reduce cycle microwave circuits devices. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett...
This paper presents a physical-level study on improving cellular-network system capacity by using the concept of semi-smart antennas. Practical implementation antenna technology imposes several technical and environmental requirements design. Therefore, novel cylindrically-conformal array has been designed tested. The new design is simple, robust, light small in size (low profile), most importantly, operates efficiently providing dynamic radiation coverage azimuth plane. In comparison to...
This paper presents a study of broadband dielectric antenna performed through numerical modelling and experimental verification. Upon understanding the operating principle prototype antenna, an optimised design has been demonstrated to provide even wider impedance bandwidth.
This paper presents a study on broadband DRA using new feed technique developed at Antenova Ltd, UK. The is designed to operate 2.4GHz for IEEE802.11b/g applications and has length of only 0.12λ. Characteristics the prototype are assessed both Finite Integration Technique simulation experimental measurements.
A large King furnace is described for use in the measurement of relative oscillator strengths by absorption method. Design criteria are discussed, and representative traces lines obtained with Oxford low noise spectrometer shown. The rms level given apparatus at a wavelength 4427 resolving power lambda/ Deltalambda = 1.1 x 10(5), 0.03% continuum, using an integration time 16 sec per point.
In recent years the topic of urban underground projects and infrastructure networks as well their contribution to sustainability resilience cities has been widely addressed. Major deal with questions interdependencies, mapping untangling existing web, which constitutes not only a service but also major constraint for future planning in space. addition, use space is more extended from purely 'technical' functions like storage developing itself into, example, shopping malls, extensions museums...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text Geoffrey Smith and Brian S. Collins, "Configuration Interaction Discovery of a Missing Term in Neutral Europium," J. Opt. Soc. Am. 60, 866-867 (1970) Export BibTex Endnote (RIS) HTML Plain alert Save article
A new method is proposed for measuring the loss tangent of flat substrate materials using split cylindrical resonator method. It based on a full-wave analysis and rigorous mode match solution TE011 mode. The dielectric losses several commercial substrates have been measured. results demonstrate that non-destructive capable accurately characterizing materials.