Essays about: "directivity"

Showing result 21 - 25 of 44 essays containing the word directivity.

  1. 21. Dynamic consumer value through value co-creation in the context of consumer culture-An ethnographic study on craft beer consumption in China

    University essay from Lunds universitet/Institutionen för tjänstevetenskap

    Author : Tingting Wang; [2018]
    Keywords : Craft beer consumption; China; Value co-creation; consumer culture; consumer value; Social Sciences;

    Abstract : Alcohol consumption is important within the research of service management in retail, because it is not only a consumption phenomenon, but also a societal matter. Inappropriate drinking culture and unhealthy drinking habits can cause serious issues to the individuals and the society. READ MORE

  3. 22. A systematic approach to quantitatively compare antenna measurements with simulations.

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : George Kiarie; Elin Andersson; [2018]
    Keywords : simulation; antennas;

    Abstract : The objective of this paper is to compare antenna simulations to actual measurements using a simulation software tool. This comparison is done using statistical methods in the far field region where the radiation patterns of antennas are plotted on a polar diagram. Actual antenna measurements are carried out in an anechoic chamber. READ MORE

  4. 23. A Cost-Effective Luneburg Lens Based on Glide-Symmetric Metasurface for 5G Applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Martin Mattsson; [2018]
    Keywords : ;

    Abstract : In this work, a cost-eective at Luneburg lens antenna operating at the Ka-band is presented.The antenna is suitable for high frequency applications in future communicationnetworks such as 5G systems due to its simple feeding, high directivity, and low loss.The lens is composed of a parallel plate structure loaded with glide-symmetric holes. READ MORE

  5. 24. Lower bounds on the Q-factor for small oversampled superdirective arrays over a ground plane

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Masahiro Wakasa; [2016]
    Keywords : ;

    Abstract : Base station antennas for next generation mobile communication networks will be required to have a wide bandwidth for compatibility and support multi-beam applications. Antenna arrays are one possible candidate for a next generation base station antenna since they can obtain high directivity, support multi-beam and wide angle scanning. READ MORE

  6. 25. Analysis of Channel Measurements Using a Very Large Antenna Array

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Tomas Sidabras; Mohammad Salman; [2015]
    Keywords : channel measurements; very large antenna array; massive MIMO; channel modeling; Technology and Engineering;

    Abstract : Accurate wireless channel models are crucial to simulate the effect of radio wave propagation in a channel on wireless communication systems. By calculating physical processing effects that signal undergoes while traveling from transmitter to the receiver, channel models help to analyze performance of wireless systems. READ MORE