10 to 900 MHz
Original Article Effects of 900 MHz electromagnetic field on prenatal locomotor development in rats
... Bone tissues and muscle tissues were removed for the preparation of specimens. These tissues were fixed in 10% formalin solution for 48 hours. After standing in a fixative material, the bones were put in a Müller ...
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Investigation of Path Loss Prediction in Different Multi-Floor Stairwells at 900 MHz and 1800 MHz
... Studies of signal attenuation along the stairwell using deterministic models [6, 7] have shown satisfactory performance but may not be apt for analytical studies since their formulation is specifically derived to run on a ...
13
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 ...
6
A Terrain Roughness Correction Factor for Hata Path Loss Model at 900 MHz
... West of Amman can be considered as a suburban area mostly of high terrain roughness and with building heights ranging from two to three levels approximately 7–10 m in most parts [1, 3]. The path loss data of each ...
12
Microwave/Thermal Analyses for Human Bone Characterization
... frequencies: 900 MHs, 1 GHz, and ...was 10:00 Watts, and in one minute simulation time, dissipation was ...at 900 MHz for a one minute ...at 900 MHz and 1 GHz, ...
11
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 ...
14
Improvement of Lafortune Lacrous Indoor Propagation Model at 1900 MHz Band
... 917 MHz. A synthesized signal source was used as transmitter with power of 10 dBm for most measurements and 19 dBm for measurements between two floors or ...
10
Design microstrip antenna 900 MHz with customized flower shape patch
... In the paper has designed a microstrip antenna using flower shape patch with adding some shapes for slot in the ground plane. In the simulation results obtained VSWR < 2 at 900 MHz, RL < -10, ...
5
Design of 900 MHz SiGe Power Amplifier with Linearization Bias Circuit
... As development of application continuously demands for higher linearity, researchers focus on studying the bias circuit of power amplifier to improve linearity. The traditional bias circuit is simply composed of two ...
10
A Study of Designing Circular Polarization for Leaky Coaxial Cable at 900 MHz
... It also needs to satisfy the electrical performance requirements such as the radiation mode, radiation direction, polarization gain and coupling loss in the working frequency band. In this case, the LCX needs to work in ...
8
Performance analysis of E-shaped dual band antenna for wireless hand-held devices
... at 900 MHz and 1800 MHz with bandwidth of 142 MHz and 218 MHz in the lower band and in the upper band respectively as compared to existing ...The 10 dB bandwidth of proposed E ...
13
Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
... nor 10 mHz B scans should be used as nonstandardized techniques for the definition of tumor ...20 mHz B scan pro- vided a higher resolution than the 10 mHz B scan, the standard ...
6
Ultralow Phase Noise 10-MHz Crystal Oscillators
... are presented. The design includes a low-noise transformer coupled differential amplifier, spurious resonance rejection filter, and electronically tuned phase shifter. Phase noise measurements demonstrate a performance ...
12
A 900-MHz 30-dBm Bulk CMOS Transmit/Receive Switch Using Stacking Architecture, High Substrate Isolation, and RF Floated Body
... transistors M8-M13 (width = 3072-µm) are placed in the receive path. The width of 3072-µm is selected to keep the insertion loss resulted by M8-M13 of the RX path close to that of a single transistor with width of 512-µm ...
17
Electromagnetic Radiation Patterns of the Leakage Current on Contaminated Insulators
... The contamination on insulators’ surface can have different thicknesses, different shapes and different number of paths. In this article, the influence of shape, thickness and number of leakage current paths on radiation ...
6
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 ...
7
Bandwidth Enhancement for Low Frequency Meander Line Antenna
... A rectangular capacitive stripe with a width of W and length of d is inserted between the meandering sections and feed line for tuning the input impedance. The structural parameters of MLA3 are listed in Table 2. Note ...
9
A New Analog-based LO Harmonic Rejection Technique with Tunable Notch Frequency
... 3. 3. Gyrator-C Active Inductor considerations A gyrator includes two coupled transconductors. The gyrator-C networks consist of a gyrator and a capacitor connected to one port of the gyrators. If the input and output ...
10
The Global Magneto Ionic Medium Survey: polarimetry of the southern sky from 300 to 480MHz
... Our survey is absolutely calibrated in amplitude. This was necessary because we observed well away from traditional radio astronomy bands and there were few data that we could use to transfer calibration. The fact that ...
20
Genotoxic Effects of Microwave Radiation from Mobile Phones on Bacterial DNA
... To generate a standard curve using a positive control, one aliquot of umulac AT-F was mixed with 1 mL of culture medium from the kit and incubated at 37°C for 1 h. Furylfuramide (AF-2) from the kit was used as a ...
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