900 MHz
A Novel Design of Compact Dipole Antenna for 900 MHz and 2.4 GHz RFID Tag Applications
... As shown in Figure 12, the surface current gives the good explanation why the proposed antenna can work at both frequencies. At 900 MHz, the current flows to the end of two arms in y direction, meanwhile, ...
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Tuning and Cross Validation of Blomquist-Ladell Model for Pathloss Prediction in the GSM 900 Mhz Frequency Band
... In this paper, Blomquist-Ladell model is used for the prediction of total pathloss for GSM signal in the 900 MHz band [5, 6, 7, 8]. The model combined free-space loss, excess plane-earth loss and tunable ...
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Licensing of Spectrum for Mobile Service in the Frequency Band of 900 MHz in Thailand
... In the auction process, on the 199th auction round, the first license received no bit and the lastest price was 75.654 billion baht. In the same round, no bidder submitted a bid for the second license, which made the ...
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A 900-MHz 30-dBm Bulk CMOS Transmit/Receive Switch Using Stacking Architecture, High Substrate Isolation, and RF Floated Body
... The stacking T/R switch implemented with a standard 0.18-µm CMOS process has been designed, fabricated, and measured for 900-MHz applications. This work shows that combining stacked transistors with RF ...
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A Terrain Roughness Correction Factor for Hata Path Loss Model at 900 MHz
... that for urban area assumption the offset value and the slope have not been changed from the original relation of Hata model. Other new suggested values were found for both the offset and the slope, for suburban and ...
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Original Article Effects of 900 MHz electromagnetic field on prenatal locomotor development in rats
... of 900 MHz electromagnetic field (EMF) on loco- motor system development in pregnant ...to 900 MHz EMF) and control group (no ...to 900 MHz EMF may negatively affect the ...
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Evaluation Of Electromagnetic Fields For Frequencies 900 MHz-1 800 MHz In Tirana
... This is a small device, by which we measure the electric field intensity and power density a source RF that radiates in the frequency band from 100 kHz to 2.5 GHz. The values of the electric field intensity that can be ...
5
Design microstrip antenna 900 MHz with customized flower shape patch
... From the Figure-5 is obtained VSWR on the frequency 900 MHz is 1.5113. A good VSWR value is between 1 and 2. The more value closer to 1 the better the antenna reflection coefficient is. This shows the ...
5
Design of 900 MHz SiGe Power Amplifier with Linearization Bias Circuit
... Abstract—A single stage 900 MHz power amplifier (PA) with linearization bias circuit is designed with HHNEC 0.5 µ m BIS500G power SiGe BiCMOS process. It is implemented by single-ended common emitter ...
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A compact MIMO antenna for smart phone application at 900 MHz and 1800 MHz
... The proposed antenna manage to operate for dual frequencies of 900 MHz and 1800 MHz in a single compact antenna. It is used as the MIMO antenna is Planar inverted F-antenna (PIFA) due to its own ...
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Investigation of Path Loss Prediction in Different Multi-Floor Stairwells at 900 MHz and 1800 MHz
... This paper presents an empirical path loss, PL, model for multi-floor stairwell environment. The model is based on analysis of measured PL in 4 stairwells at 900 MHz and 1800 MHz, which are near ...
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A Study of Designing Circular Polarization for Leaky Coaxial Cable at 900 MHz
... Abstract—Widely applied in confined areas communication, leaky coaxial cable (LCX) is used as an antenna to provide communication services for mobile devices. In order to improve the quality of mobile communication in ...
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vt1421 Digital 900 Mhz w-Caller ID
... Alternatively, if you have purchased a spare battery pack and it has been charging in the base unit, simply exchange the drained handset battery pack with the fully charged battery pack [r] ...
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900 MHz Two-Line Cordless Guestroom Telephone
... Upon request of the telephone company, provide the FCC registration number and the ringer equivalence number of the equipment which is connected to your line; this information will be fo[r] ...
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Design and development of harvester rectenna at GSM band for battery charging applications
... A 900 MHz RF energy harvesting system for charging mobile applications has been analyzed, discussed and designed, Lastly the energy conversion module that comprises of 3-stages voltage doubler circuit with ...
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Possible health effects related to the use of radiotelephones. Proposals for a research programme by a European Commission Expert Group
... Email Funding Agency Deutsche Telekom Main topic Cancer promotion in rats Dates start-end In progress Exposure systems and protocols Individual exposure chambers, 900 MHz, 217 Hz pulsed,[r] ...
163
Detection of Steel Bars and Interal Defect Inside Concrete Using Non-Destructive Test Equipment
... 8 Results of detecting Locations of Steel Bars and Spacing Lengths (Applied Specimen).. Since the signal from the higher frequency antenna of 900 MHz, 1 GHz, and 1.5 GHz w[r] ...
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Derivation of Electromagnetic Properties of Child Biological Tissues at Radio Frequencies
... Abstract—The knowledge of electromagnetic properties of biological tissues is required to assess the radio frequency energy deposition in children exposed to electromagnetic fields. The issue whether children should be ...
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Electromagnetic Radiation Patterns of the Leakage Current on Contaminated Insulators
... Abstract – There are many noise sources causing electromagnetic interference in power transmission lines. As voltage of transmission lines is higher, generated harmonics radiated from these lines interfere considerably ...
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The Global Magneto Ionic Medium Survey: polarimetry of the southern sky from 300 to 480MHz
... Much data on the Galactic polarized radio emission has been gathered in the last fi ve decades. All-sky surveys have been made, but only in narrow, widely spaced frequency bands — and the data are inadequate for the ...
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