High Frequency and Wideband
A compact wideband patch antenna for ultra high frequency RFID tag
... International Islamic University Malaysia, Electrical and Computer Engineering, Gombak, Malaysia Abstract A compact and simple patch antenna for ultra high frequency band is current demand for RFID tag. By ...
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Designing a Carbon Nanotube Field Effect Transistor with High Transition Frequency for Ultra Wideband Application
... Ramin Nouri-Bayat, Ali Reza Kashani-Nia Central Tehran Branch, Islamic Azad University, Tehran, Iran Abstract Theoretical calculations predict transition frequencies in the terahertz range for the field-effect ...
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Wideband, High Gain VOLTAGE LIMITING AMPLIFIER
... d) Use high-frequency components to minimize parasitic elements. Resistors should be a very low reactance type. Surface-mount resistors work best and allow a tighter layout. Metal film or carbon composition ...
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Design of an Ultra-wideband Frequency System for Non-destructive Root Imaging
... Important parameters for the Data Processing module include the steering vector design and the window size value. Delay-and-sum beamforming uses an impulse response delayed by the propagation time. The calculations for ...
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CMOS T/R switch design : towards ultra wideband and higher frequency
... The impacts of customized layout on the T/R switch perfor- mances are discussed as follows. Based on the configuration of Fig. 1, the bulk is connected to ground, and the gate is biased through a large resistor to create ...
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SKY : Wideband PLL Frequency Synthesizer
... Package and Handling Information Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding exposure to moisture ...
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Design of a Dual Monopole Antenna with Wideband Frequency
... In order to afford efficient of mobility, the wireless communication devices are required becoming smaller [6–8]. Antennas, which play an important role in wireless communication, are also increasingly required to become ...
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A Wideband and High Gain Dual-Polarzied Antenna Design by a Frequency-Selective Surface for WLAN Application
... for wideband and high-gain operation using two orthogonal bow-tie dipoles as the feeding source and an FSS wideband structure as the superstrate layer for high directivity is ...For ...
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High Speed Turbo TCM Coded Orthogonal Frequency Division Multiplexing Ultra Wideband Systems
... orthogonal frequency-division multiplexing (OFDM) system and punctured convolutional codes for UWB channels supporting a data rate up to 480 ...the high rate transmission, for example, frequency and ...
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A 30GHz Wideband CMOS Injection Locked Frequency Divider for 60GHz Transceiver
... a frequency double and a 30 GHz ...phase frequency detector (PFD), charge pump (CP), loop filter, VCO, high speed ILFD as a first divide stage and a series of subsequent frequency CML ...
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Archimedean spiral antenna embedded with frequency selective surface for wideband applications
... a high dielectric constant or thick dielectric can significantly alter its ...when high permittivity dielectric substrate is used; the performance of the antenna ...
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Wideband Frequency Selective Surface Based Transmitarray Antenna at X-Band
... a wideband multilayer transmitarray antenna is designed for Ku frequency ...using frequency selective surface ...in high gain, directional and low profile antennas for X-band communication ...
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Enhanced compressive wideband frequency spectrum sensing for dynamic spectrum access
... Abstract Wideband spectrum sensing detects the unused spectrum holes for dynamic spectrum access ...Too high sampling rate is the main ...in frequency domain, CS can deal with the sampling ...
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Wideband High Gain Fractal Antenna for Wireless Applications
... applications. Wideband technology has attracted much attention recently because the communication systems promise high bandwidth, reduced fading from multipath propagation and low power ...and high ...
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Coplanar Ring Divider with Wideband High Isolation Performance
... Abstract—In this letter, the design and measurement of a new ring power divider exhibiting wideband high isolation is presented. Coplanar techniques are used to achieve a compact and truly uniplanar design. ...
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Wideband High Gain Antenna Subarray for 5G Applications
... Wideband High Gain Antenna Subarray for 5G Applications Seyyedehelnaz Ershadi 1, * , Asghar Keshtkar 1 , Ahmed ...larger frequency bands. This paper presents a novel design of a high gain and ...
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Frequency Reconfigurable Triple Band-Notched Ultra-Wideband Antenna with Compact Size
... achieved frequency band, except the three notched frequency bands ...with high immunity from electromagnetic interference attributed to wireless communication systems allocated in the UWB ...
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A Constant Gain Ultra-Wideband Antenna with a Multi-Layer Frequency Selective Surface
... 1. INTRODUCTION Ultra-wideband (UWB) technology shows great potential in commu- nication systems, impulse radio, and consumer electronic products. The extended bandwidth of UWB is also used for microwave imaging ...
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Wideband Radio Frequency Noiselet Waveforms for Multiresolution Nondestructive Testing of Multilayered Structures
... 7. CONCLUSIONS This paper introduces the concept and applications of noiselet waveforms for multiresolution imaging of various types of defected multilayered structures. The imaging algorithm is developed and tested for ...
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A Wideband Frequency Selective Surface Reflector for 4G/X-Band/Ku-Band
... 8. Izquierdo, B., J. Robertson, and E. A. Parker, “Wideband FSS for electromagnetic architecture in buildings,” Journ. of Material Science and Progres., Appl. Phys. A, 771–774, 2011. 9. Pirhadi, A., H. Bahrami, ...
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