Results 81 to 90 of about 31,794 (223)
A compact meander flexible UHF tag for industrial applications
e-Prime: Advances in Electrical Engineering, Electronics and EnergyThe objective of this paper is to introduce a novel design for a flexible Ultra-High Frequency tag (UHF tag) through the utilization of the meander line technique (MLA) and loop antenna method.
Latifa El Ahmar +6 more
doaj +1 more source
The effect of radio frequency interference on the 136- to 138-MHz return link and 400.5- to 401.5-MHz forward link of the Tracking and Data Relay Satellite System [PDF]
The purpose is to update the RFI estimates in the 136- to 138-MHz VHF band and to make estimates for the first time for the 400.5- to 401.5-MHz UHF band.
Jenny, J., Lyttle, J. D.
core +1 more source
Compact RFID tag antenna based on square spiral resonator
物联网学报A miniaturized ultra-high frequency (UHF) radio frequency identification (RFID) tag antenna was designed.The antenna was composed of two square spiral resonators shorted inside and outside.By adjusting the edge length of the outer ring spiral resonator ...
Libin DAI, Zhimeng XU, Jiade YUAN
doaj +2 more sources
Design and realization of printed LPDA at UHF band
10th International Conference on Mathematical Methods in Electromagnetic Theory, 2004., 2005 In this paper design and realization of an Printed Log Periodic Dip01 Antenna (LPDA) is presented. This contribution describes how to produce a LPDA at UHF band and experimental results of the antenna. In this paper design and realization of an PLPDA antenna is presented.
openaire +4 more sources
Spectrum Sharing for LTE-A Network in TV White Space
, 2017 Rural areas in the developing countries are predominantly devoid of Internet access as it is not viable for operators to provide broadband service in these areas. To solve this problem, we propose a middle mile Long erm Evolution Advanced (LTE-A) network
Chaporkar, Prasanna +3 more
core +1 more source
Public safety and cognitive radio [PDF]
, 2009 This book gives comprehensive and balanced coverage of the principles of cognitive radio communications, cognitive networks, and details of their implementation, including the latest developments in the standards and spectrum policy. Case studies, end-of-
Heskamp, Marnix +2 more
core +3 more sources
International Journal of Antennas and Propagation, 2014 The recently introduced coupled shorted-patches technique for the design of extremely low-profile UHF RFID tag antennas is used to illustrate the flexibility of selected feeding methods for tuning the antenna input impedance for the complex values ...
Milan Svanda, Milan Polivka
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An overview of results derived from mobile-satellite propagation experiments [PDF]
During the period 1983-1988, a series of Land Mobile Satellite Service (LMSS) propagation experiments were performed. These experiments were implemented with transmitters on stratospheric balloons, remotely piloted aircraft, helicopters, and ...
Goldhirsh, Julius, Vogel, Wolfhard J.
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International Journal of Distributed Sensor Networks, 2013 In this paper, we introduce a novel design of high-performance smart card with HF/UHF dual-band RFID tag to overcome frequency interference problem. Firstly, we have designed and tested a UHF RFID tag using a simulation software system. In the smart card
Gi-Hyun Hwang, Dae-Ki Kang
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International Journal of Antennas and Propagation, 2020 This article presents the design, fabrication, and measurement of a square Koch fractal slot antenna for UHF band using both the FR4-G10 and Cuclad 250 substrates.
Jorge Simon +7 more
doaj +1 more source