2.5 to 8 GHz
Tetra Frequency Microstrip Antenna for Wireless Applications
... 5.8 GHz Bands using Genetic Algorithm Optimization", International Journal of Engineering and Technology, 1 (4) (2012) 466-471, ©Science Publishing Corporation, ...
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Measuring snow thickness over Antarctic sea ice with a helicopter borne 2 8 GHz FMCW radar
... Figures 6.27 and 6.28 plot the result after averaging and mapping for the 100 m and 50 m Passes. To generate this comparison, the snow thickness derived from the three Passes was averaged, and the average smoothed with ...
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Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle
... of 5 GHz and suitable S ...= 2 . 5 mm, R = 7 mm, r = 10 . 8 mm, d = 1 mm, l = 10 mm, h 1 = 8 mm, h = 14 mm, h 2 = 1 .... 2 mm. Fig. 5 shows the S parameters, ...
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2 9 8 4 GHz Filter Bank Using Stub Loaded Multi Mode Resonators
... about 2 dB in the upper passband and a nar- row upper ...8.4 GHz, 12.8 GHz, and 16.8 GHz and the lower stop- bands are stretched to DC, with sharp attenuations above 40 dB, even at 2f 0 ...
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PIFA antenna for RFID application at 5 8 GHZ
... The impedance bandwidth of the IFA antenna is less than 2% on the center frequency. One way to increase the bandwidth of the IFA antenna is to replace the upper horizontal arm with a plate oriented parallel to the ...
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RCS Reduction of Quasi-Yagi Antenna
... A conventional planar Quasi-Yagi antenna, as shown in Figure 1, consisting of a director, a reflector and a driver, is designed as a reference antenna. The reflector is made by truncated ground plane and the driver is fed ...
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Radio wave propagation in curved rectangular tunnels at 5 8 GHz for metro applications, simulations and measurements
... Wireless communication systems are key solutions for metro applications to carry, at the same time, with dif- ferent priorities, data related to control-command and train operation and exploitation. Driverless ...
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A Relatively Inexpensive 5 8 Ghz Microwave System for Exploring Electromagnetic Phenomena in Laboratories
... broadside dipole array printed on a PCB, labeled the Broadside dipole. Both the transmitting and receiving antennas are attached to pieces of ½ inch rigid plastic rod mounted 14 inches above a dove-tail optical rail and ...
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A Novel Dual Band-Notched Monopole Antenna for Ultra-Wideband Application
... radiating patch, a rectangular step is used to adjust the impedance bandwidth over the UWB frequency band. Besides, the round-corner of the ground is also used for bandwidth enhancement. By analyzing the current ...
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A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications
... systems is increasing day by day. This in turn induces an increased demand for cellular capacity. Recently different types of antennas were developed which are of dual band antennas for WIFI Applications. Most of the ...
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Effects of Defected Waveguide Structure Toward Wideband Monopole Antennas
... 8.5 GHz and high efficiency of more than − 2 ...6 GHz to 11 GHz but a significant directivity improvement of 5 dBi at a lower frequency ...8.5 GHz. Higher gain was improved at ...
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Design of new combined antenna for dual polarization using crossed dipole at 2 23 GHZ and 5 GHZ
... For initial design, micro strip fed rectangular patch with notches antenna is applied to achieved left hand or right hand circular polarization. When the AR should be less 3dB within the targeted beam with to guarantee ...
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Co axial Fed Rectangular Microstrip Patch Antenna for 5 2 GHz WLAN Application
... Figure 8 shows the VSWR (voltage standing wave ratio) plot for the designed antenna. The value of VSWR should lie between 1 and 2. SWR is used as an efficiency measure for transmission lines, electrical ...
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Design and Characterization of a 5 2 GHz/2 4 GHz Fractional Frequency Synthesizer for Low Phase Noise Performance
... Frequency dividers consist of switching logic circuits, which are sensitive to the clock timing jitter. The jitter in the time domain can be converted to phase noise in the frequency domain. Time jitter or phase noise ...
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A high gain PIFA at 2 45 GHz and 5 8 GHz using wireless power transfer techniques for pacemaker application
... 2.45 GHz and 5.8 GHz resonant frequencies are design and compared in terms of the advantages and disadvantages for pacemaker application in simulation and measurement ...2.45 GHz antenna is 40 x 50 ...
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The evolution of young HII regions. I. Continuum emission and internal dynamics
... at 5 GHz (see Table ...both 5 and 8.6 GHz detections with ...Table 2), and are indicative of op- tically thin thermal emission ...the 8 GHz and IR luminosities of these ...
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In vehicle channel sounding in the 5 8 GHz band
... Vehicle area networks (VANs) and vehicular ad hoc net- works (VANETs) generally refer to networks between cars and infrastructure points located along the road side [1,2]. These networks are aimed to deliver information ...
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3.5/5 GHz Dual-Band 8 X 8 Adaptive Array Antenna
... 3.5 GHz [1, ...of 5 GHz is suitable for Wireless Fidelity (Wi-Fi), the brand name of WLAN [3, ...3.5/5 GHz dual-band 8 × 8 adaptive planar array ...
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A Broadband 3D Printed Fractal Tree Monopole Antenna
... A collection of three-dimensional fractal tree dipole antennas consisting of very thin wires were presented in [8]. These antennas were shown to have multiple narrow bands of performance, tunable by changing the ...
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Volume 2, Issue 8, August 2013 Page 5
... Volume 2, Issue 8, August 2013 Page 7 The algorithm includes three steps. First, we utilize Jaccard Similarity Coefficient as the measure of the similarity for each pair of objects. Second, for each , we ...
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