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K-band

Multiple Band Microstrip Patch Antenna with DGS for X Band, Ku Band and K Band Applications

Multiple Band Microstrip Patch Antenna with DGS for X Band, Ku Band and K Band Applications

... X band and Ku band and K band. The X band widely used for air traffic control, military for weather monitoring, satellite communication and deep space ...Ku band used for ...

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Slotted Folded Substrate Integrated Waveguide Band Pass Filter with Enhanced Bandwidth for Ku/K Band Applications

Slotted Folded Substrate Integrated Waveguide Band Pass Filter with Enhanced Bandwidth for Ku/K Band Applications

... Abstract—This paper proposes the design of wide bandpass filters for Ku and Ku/K band applications. It has wide passband with miniaturization of size using folded substrate integrated waveguide (FSIW) ...

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A New RF MEMS Capacitive Switch for K-Band Application

A New RF MEMS Capacitive Switch for K-Band Application

... For K-band communication application, a novel switch using MEMS technology is designed, simulated, fabricated, and ...other K-band MEMS ...

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K Band Wilkinson Power Divider Based on a Taper Equation

K Band Wilkinson Power Divider Based on a Taper Equation

... Abstract—In this paper, a microstrip circuit structure for a K-Band Wilkinson power divider is presented. The designed power divider is composed of two-step taper stubs based on empirical equations. The ...

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Velocity Error Analysis of a K-Band Dual Mode Traffic Radar

Velocity Error Analysis of a K-Band Dual Mode Traffic Radar

... The marked difference between FMCW radar and CW radar is the oscillator. In FMCW radar the oscillator is VCO with the features of high linearity and wide modulation bandwidth. However, in CW radar the oscillator is DRO or ...

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Design and Analysis of Three Stages pHEMT LNA  At K Band

Design and Analysis of Three Stages pHEMT LNA At K Band

... Abstract—Thispaper represents the designing of three stage LNA using EC2612 pHEMT technology.pHEMT technology gives high transconductance and shows better reliability. This three stage amplifier has been designed for ...

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Substrate integrated waveguide (SIW) 3 dB coupler for K-Band applications

Substrate integrated waveguide (SIW) 3 dB coupler for K-Band applications

... Abstract. This paper presented a designed coupler by using Rogers RO4003C with thickness (h) 0.508 mm and relative permittivity (  r ) 3.55. The four port network coupler operates in K-band (18-27 GHz) and ...

5

Design and Integration of Compact K-Band Baluns Using Impedance Tuning Approach

Design and Integration of Compact K-Band Baluns Using Impedance Tuning Approach

... Abstract—Compact K-Band CMOS baluns are designed, fabricated and characterized in a 130 nm CMOS technology. These baluns include a tunable active balun, a L-C lumped element balun, and two asymmetric planar ...

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K-Band Harmonic Dielectric Resonator Oscillator Using Parallel Feedback Structure

K-Band Harmonic Dielectric Resonator Oscillator Using Parallel Feedback Structure

... Abstract—A novel K-band harmonic dielectric resonator oscillator (DRO) is presented. Two identical parallel feedback DROs constitute a symmetric structure by sharing the same dielectric resonator (DR). As a ...

8

Radar micro Doppler signatures of drones and birds at K band and W band

Radar micro Doppler signatures of drones and birds at K band and W band

... at K-band where instead of a single bird, birds of different sizes have been used for better evaluation of the micro-Doppler characteristics, b) bird micro-Doppler signature analysis at W-band, c) ...

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K band spectroscopy of pre cataclysmic variables

K band spectroscopy of pre cataclysmic variables

... We have used the TPP catalogue (Kube et al. 2002) to search for confirmed and candidate pre-CVs that are observable from the southern hemisphere. We have restricted our sample to con- firmed pre-CVs with known orbital ...

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Wide Band Koch Notch Patch Antenna for Ku and K Band Wireless Applications

Wide Band Koch Notch Patch Antenna for Ku and K Band Wireless Applications

... Abstract- In this paper, a primitive square patch loaded with a rectangular notch behavior is observed by varying the geometry of the patch antenna. The variation having been brought by integrating Koch geometry (created ...

8

Fast and Optimal Design of a K-Band Transmit-Receive Active Antenna Array

Fast and Optimal Design of a K-Band Transmit-Receive Active Antenna Array

... Because the slot-coupler transition is used to feed the slot-fed patch antenna,it is the first circuit characterized. The simulated return loss by using ELVFEM/AMLFMA of the coupler is less than 10 dB over a 12% bandwidth ...

19

Digitized Nonlinear Beam and Wave Interaction Theory of Traveling Wave Tube Amplifiers

Digitized Nonlinear Beam and Wave Interaction Theory of Traveling Wave Tube Amplifiers

... a K-band helix TWTA, a V-band coupled cavity (CC) TWTA [23] and a W-band folded waveguide (FWG) TWTA [24] shown in Figure 1 has been accurately predicted by the one-dimensional (1-D) ...

16

Band gap reduction in InNxSb1 x alloys : optical absorption, k · P modeling, and density functional theory

Band gap reduction in InNxSb1 x alloys : optical absorption, k · P modeling, and density functional theory

... accurate band gaps than the local density and generalized gradient ...a band gap of 231 meV for InSb, in good agreement with the 0 K band gap of 235 meV extrapolated from the low temperature ...

7

Deterioration in Thermally Oxidized Mustard Oil: A Spectroscopic Investigation and Toxicological Impact on Selected Rat Tissues

Deterioration in Thermally Oxidized Mustard Oil: A Spectroscopic Investigation and Toxicological Impact on Selected Rat Tissues

... The substanitial red shift in electronic absorption (peak at 238nm) exhibited by the heated oil samples would indicate the presence of a conjugated double bond band (also known as k band) in the ...

7

Investigation of ground-based microwave radiometer calibration techniques at 530 hPa

Investigation of ground-based microwave radiometer calibration techniques at 530 hPa

... seven K-band channels along the rotational wa- ter vapor line at 22 GHz to retrieve information about the atmospheric water vapor and liquid water ...

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High-k Gate Dielectric Selection for Germanium-based CMOS Devices

High-k Gate Dielectric Selection for Germanium-based CMOS Devices

... gas phase. GeO(g) being a reducing agent [18] degrades the electrical properties of the stack. Hence, one should choose other oxides as gate dielectrics in Ge based CMOS devices. High‐k gate dielectrics provides ...

8

Optimal Design of a Ku/Ka-Band Wide-Flare-Angle Corrugated Horn Using the Differential Evolution Algorithm

Optimal Design of a Ku/Ka-Band Wide-Flare-Angle Corrugated Horn Using the Differential Evolution Algorithm

... Using the relative bandwidth concept, the full Ku/Ka bands represent a nearly 2.9 : 1 bandwidth ratio. It is a significant bandwidth for traditional corrugated horns hard to achieve. Most of the Ku/Ka-band feed ...

7

Imaging Cooper pairing of heavy fermions in CeCoIn5

Imaging Cooper pairing of heavy fermions in CeCoIn5

... light band ( grey) closing at the ...heavy band (blue) diverges from the light band and begins to disperse very rapidly outwards and crosses E=0 at high ...light band (grey) approach E=0 from ...

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