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4 to 5 GHz

A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications

A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications

... This paper presents A Compact Triple Band Antenna for 2.4/3.6/5 GHz WIFI and SAT.COM Applications. The proposed antenna completely covers IEEE standards IEEE 802.11b/g at 2.4 GHz, IEEE 802.11a at ...

5

Polarization Behavior of Discrete Multipath and Diffuse Scattering in Urban Environments at 4 5 GHz

Polarization Behavior of Discrete Multipath and Diffuse Scattering in Urban Environments at 4 5 GHz

... The paper is organized as follows: Section 2 gives a brief review of the RIMAX parameter estimation framework. In Section 3, we present the sounder and data processing system that were used throughout the measurement ...

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A fast vectorial network analyser for frequencies up to 4 GHz

A fast vectorial network analyser for frequencies up to 4 GHz

... with a PLL system. These two ramp systems generate fre- quencies from 8.99 GHz to 5 GHz with a ramp duration of 20 ms. Between both frequency ramps a fixed frequency dif- ference of 50 kHz exists. ...

5

Optimization of Wi-Fi Usage with Cluster Head Rotation of Motes and Client, Band Steering Technology

Optimization of Wi-Fi Usage with Cluster Head Rotation of Motes and Client, Band Steering Technology

... network throughput. Even a client capable of fast data rates must drop back to a slower rate if its user moves far from the access point serving that client. Increasing client diversity: The number and type of ...

7

Design of new combined antenna for dual polarization using crossed 
		dipole at 2 23 GHZ and 5 GHZ

Design of new combined antenna for dual polarization using crossed dipole at 2 23 GHZ and 5 GHZ

... The presented antenna is also able to operate in linear polarization mode for S band the same radiating elements are implemented for a linear or circular polarization antenna, this new design has been manufactured and ...

5

Octagonal Fractal Antenna for 5 GHz Band: Modelling and Evaluations

Octagonal Fractal Antenna for 5 GHz Band: Modelling and Evaluations

... In this paper, we propose a broadband antenna using an octagonal patch with a microstrip structure. The proposed antenna consist of an octagonal patch. The operational bandwidth can be adjusted by considering the size of ...

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An Analytical Approach for Fast Automatic Sizing of Narrow Band RF CMOS LNAs

An Analytical Approach for Fast Automatic Sizing of Narrow Band RF CMOS LNAs

... Section 4 was coded using Matlab (Version ...0.7 GHz to 5 GHz were synthesized, and verifications were done by one-time Spectre circuit si- mulations with the corresponding ...

10

SIMULATED DESIGN OF 5 STAGE CMOS RING OSCILLATOR FOR HIGH SPEED TRANSMITTER AT 5 GHz

SIMULATED DESIGN OF 5 STAGE CMOS RING OSCILLATOR FOR HIGH SPEED TRANSMITTER AT 5 GHz

... [4] Stefanos Sidiropoulos, “ High performance inter-chip signaling”, Technical Report: CSL-TR-98-760, Electrical and Computer Science Engineering, Stanford University, Stanford, California, April 1998. [5] ...

6

Effects of Defected Waveguide Structure Toward Wideband Monopole Antennas

Effects of Defected Waveguide Structure Toward Wideband Monopole Antennas

... Furthermore, the resonance frequencies (Marker 1–Marker 2) of Design A and Design B were shifted with the additional DWS. The shifted resonance frequencies of Design AD and Design BD were shown in Marker 3–Marker ...

13

A Novel Monopole Dual Band-Notched Antenna with Tapered Slot for UWB Applications

A Novel Monopole Dual Band-Notched Antenna with Tapered Slot for UWB Applications

... 3.1 GHz, 4.5 GHz and 7.5 GHz are presented in Figure 5, which indicates the radiation patterns of the proposed antenna at frequencies out of the rejected band are stable and omnidirectional in ...

9

Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle

Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle

... of 5 GHz and suitable S .... 5 mm, R = 7 mm, r = 10 ...Fig. 5 shows the S parameters, which illustrate that the center frequency of the dual-loop antenna is about 5 GHz, the ...

8

RCS Reduction of Quasi-Yagi Antenna

RCS Reduction of Quasi-Yagi Antenna

... The theme of this paper is the RCS reduction of Quasi-Yagi antenna in different states: a planar Quasi-Yagi antenna with and without metallic reflect plate. By designing arrow-shape Koch dipoles as director and driver of ...

9

Design of Concurrent Low-Noise Amplifier for Multi-Band Applications

Design of Concurrent Low-Noise Amplifier for Multi-Band Applications

... being free variables is ensured, the set of equations is solvable, and accordingly our goal is achieved. For the preliminary solution, the formula in [27] may be a good reference, which can be further optimized for the ...

14

A New Analog-based LO Harmonic Rejection Technique with Tunable Notch Frequency

A New Analog-based LO Harmonic Rejection Technique with Tunable Notch Frequency

... The OTA shown in Figure 9(a) is a simple two-stage fully-differential with common-mode feedback for each stage. This amplifier must have a bandwidth depending on the bandwidth of a wanted channel. In this work, the ...

10

A Novel Dual Band-Notched Monopole Antenna for Ultra-Wideband Application

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 ...

9

Design and Performance of H- Shaped DRA with Dumbbell shaped DGS for Wide Band Applications

Design and Performance of H- Shaped DRA with Dumbbell shaped DGS for Wide Band Applications

... [3] Andrew G.Walsh, Member, IEEE, Christopher S. De Young, Student Member, IEEE, and Stuart A. Long, Fellow, IEEE “An Investigation of Stacked and Embedded Cylindrical Dielectric Resonator Antennas” IEEE Antennas and ...

5

Design and Characterization of a 5 2 GHz/2 4 GHz Fractional  Frequency Synthesizer for Low Phase Noise Performance

Design and Characterization of a 5 2 GHz/2 4 GHz Fractional Frequency Synthesizer for Low Phase Noise Performance

... The details of the actual circuit implementation will not be discussed in this paper, but are similar to those given in [11]. The raw VCO phase noise can be either predicted from a calculation [6] or else simulated with ...

11

Broadband Multipath-Rejection Shorted Annular Patch Antenna for GPS Applications

Broadband Multipath-Rejection Shorted Annular Patch Antenna for GPS Applications

... location of the pins father from the center, the impendence matching of the low frequency end has deteriorated. As a result, the bandwidth decreases to 0.425 GHz (1.175–1.6 GHz). By loading the shorted ...

8

Tetra Frequency Microstrip Antenna for Wireless Applications

Tetra Frequency Microstrip Antenna for Wireless Applications

... 1.8 GHz, 2.4 GHZ, 5 GHz, 6 GHz, ...2.4 GHz frequency band is also crowded with interfering devices like other Wi-Fi access points, microwave ovens, cordless phones, Bluetooth ...

5

The evolution of young HII regions. I. Continuum emission and internal dynamics

The evolution of young HII regions. I. Continuum emission and internal dynamics

... at 5 GHz (see Table A.2). All but two of the targets have both 5 and ...8.6 GHz detections with ...8 GHz and IR luminosities of these ...

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