frequency band
Underwater Communication in 2.4 Ghz ISM Frequency Band for Submarines
... ABSTRACT: One of the main problems in under water communications is the low data rate available due to the use of low frequencies. Moreover, there are many problems inherent to the medium such as reflections, refraction, ...
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Nonlinear Modeling, Analysis and Design of an Active Antenna in S Frequency Band
... An active antenna for transmitter application in S frequency band is designed and analyzed using harmonic balance technique which is based on the nonlinear model of active devices. In this active antenna, ...
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Passive ranging of near field targets in the audio frequency band
... the frequency response of a loudspeaker - this is detailed in chapter 2 in section ...loudspeakers frequency response had been characterized successfully, the next obvious move was to start building a ...
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A Low Frequency Band for Video Watermarking base on PCA Technique
... In [9] one more algorithm has developed using the PCA and DWT technique. Here divide the video frame and convert RGB frames in to YUV components. Then for each one frame select the luminance Y component and implement DWT ...
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Neurochemical Modulation Frequency Band of Hippocampal Theta Rhythm
... ventromedial nucleus of the hypothalamus: AP0, L0.5, H17; medial mammilary nucleus of the hypothalamus: P2, L0.5, H18.5) and field CA3 was performed using an ÉSU-1 stimulator with square-wave impulses at frequencies of ...
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Dual band antenna for radio frequency identification applications
... In recent years, there are various antenna types used in RFID reader for different purposes whether in long or short range application. Plenty of antenna reader has only one specific frequency band, capable ...
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A NOVEL APPROCH TO DESIGN X-BAND FREQUENCY GENERATOR
... radio frequency (RF) communication ...x- band signals by using T- type resonator on the micro strip ...The frequency generator which we have design shows the excellent phase noise characteristics as ...
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Design of Mid Band Frequency Patch Antenna for 5G Applications
... However their limitations are specifically narrow frequency band. For these reasons, many studies have been made to improve the performances of the antenna patch. Bandwidth can be enhanced by using multiple ...
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Design of a Triple Band Notched Compact FSS at UWB Frequency Range
... bandstop Frequency Selective Surface (FSS) prototype based on square split ring resonators (SSRRs) and a square loop (SL) structure for Ultra Wide Band (UWB) frequency ...Triple band notches ...
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An attenuation Layer for Electromagnetic Shielding in X- Band Frequency
... with frequency range from 300MHz to 300 GHz that divided into some Frequency ...X- band (8-12.5 GHz) is part of the radar frequency band in the microwave spectrum and descript as super ...
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Orthogonal Frequency Division Multiplexing Using Transmitter Band
... narrow frequency band, it can interfere with adjacent channels due to the cross modulation and the intermodulation caused by non-linearities of the receiving ...
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A Dual-Band Antenna for LTE-R and 5G Lower Frequency Operations
... MHz band along with 5G (3.5 GHz) band applications for future advanced railway ...700-MHz band, and the 5G (3.5 GHz) band is added by keeping the circular patch in proximity to the feed line ...
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A Q-Band Frequency Synthesizer in 0.13 μm SiGe BiCMOS
... the frequency synthesizer is used to supply a stable clock or convert the transmission data up/down to the desired frequency ...operating frequency increased continuously, the design of the ...
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Frequency Notched Wide Band Planar Monopole Antennas
... UWB frequency range has interference to the existing com- munication systems frequency ...more frequency bands, requiring dual or triple frequency ...IEEE802.11a frequency band, ...
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Frequency and Pattern Reconfigured Multi Band CPW Antenna for Wimax and X Band Applications
... Whenever the diode D1 and diode D2 are separated from every other state turned ON (State II), the cut at lower end will be shorted with respect to the center strip. The strip that is shorted, which has electrical length ...
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A Dual Band Frequency and Pattern Reconfigurable Dielectric Resonator Antenna
... middle band frequencies, ...enable frequency reconfiguration without changing the other operational characteristics of the ...fixed frequency of ...
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Wide-Band Audio Coding Based on Frequency-Domain Linear Prediction
... Modern audio codecs combine some of the previously men- tioned dual techniques (e.g., QMF and MDT implemented in adaptive transform acoustic coding (ATRAC) developed by Sony [48]) to improve perceptual qualities/bit ...
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A Wideband Frequency Selective Surface Reflector for 4G/X-Band/Ku-Band
... Abstract—A Frequency Selective Surface (FSS) reflector with wideband response for 4G/X-band/Ku- band is ...targeted frequency range is 5–16 ...
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Design and Analysis of a Controllable Miniaturized Tri-Band Frequency Selective Surface
... substrate is very small, so the approximate value of the frequency point of the first transmission pole we obtain from Formulas (3)–(6) is about 3.27 GHz, which is close to the simulated result 3.30 GHz shown in ...
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A Dual Band E-CRLH Frequency Multiplier with Two Multiplication Factors
... In this contribution, we propose a dual-band distributed multiplier (DM) based on extended composite right/left-handed (E-CRLH) transmission lines. The concept of E-CRLH TL, introduced in [3] and extensively ...
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