1 to 94 GHz
A solid state 94 GHz FMCW Doppler radar demonstrator for cloud profiling
... Clouds play a very significant role in the energy balance of the Earth’s atmosphere and yet they are still relatively poorly understood. Atmospheric models require more and better data on clouds in order to enhance their ...
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94 GHz pulsed coherent radar for high power amplifier evaluation
... ~100 GHz but performance drops off rapidly at higher frequencies and they are typically fairly narrow band devices (~1% bandwidth) 7 ...At 94 GHz, an EIKA typically delivers 1 kW peak ...
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Calibration of a 35 GHz airborne cloud radar: lessons learned and intercomparisons with 94 GHz cloud radars
... In recent years, CloudSat has been established as a refer- ence source to compare the calibration of different ground- and airborne cloud radars (Protat et al., 2010). Due to the stability of its absolute calibration and ...
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The use of composite pulses for improving DEER signal at 94 GHz
... the 1 kW amplifier (blue), is shown in Figure ...4 GHz analog input bandwidth. The power output of the phase modulated 94 GHz input signal, post multiplication, pre-amplification (red) is ...
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Time-Dependent Nonlinear Theory and Numerical Simulation of 94 GHz Complex Cavity Gyrotron
... In millimeter-wave frequency range, the high-power gyrotrons are needed in many applications, e.g., long range radars, electron cyclotron resonance heating of plasma, industrial heating, material processing [1, ...
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Theoretical Study on Single-Scattering Properties of Ice Particles of Different Orientation at 94 GHz
... from 1 µm to 10 mm in terms of the maximum dimension D which equals L of the hexagonal columns and equals 2a of the hexagonal ...at 94 GHz and the density of ice used is ...
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Design of Crossbar Mixer at 94 GHz
... Millimeter wave mixers are generally designed in waveguide, suspended stripline, fin-line or combination of these lines. After going through many literatures, it has been found that suspended stripline has been success- ...
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Single Layer Printed Reflectarrays at MM-Waves
... 77 GHz automotive radar [2] with a moderate 200-300m detection range is one of the ...detection, 94 GHz is better due to the lower atmospheric attenuation ...
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A Slot Antenna-Coupled Microbolometer for Detection at 94 GHz
... 3-axis (x, y, and z) micropositioning stages for precise positioning at the center of the irradiating beam. The detector was biased at 1.38 mA. The modulated detector response signal was then preamplified using a low ...
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Millimeter wave micro Doppler measurements of small UAVs
... Figure 1 and Figure 2 show simulated results for a single ...10 GHz is also performed to visually compare the effect of frequency on micro-Doppler ...for 94 GHz (from ...10 GHz, the ...
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1 GHz Inverse Filters using Operational Amplifier
... The second order inverse band pass biquad filter depicted in the figure 5 designed for a centre frequency of 1 GHz by selecting R1 and R2 = 159.154 MΩ and C1 and C2 = 1 pF is simulated a[r] ...
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A 1 GHz to 3 GHz Design of Low Noise Amplifier for Multi-standard Receiver
... Fig.1 indicates the schematic circuit diagram of wideband inductively degenerated common source LNA targeted to cover the carrier frequency range from 1000 MHz to 3000 MHz. The input matching bandwidth in design ...
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A Polarization-Dependent Mutiband Ram Design
... AF 1 = e j(kx+ky)d/2 + e j(−kx−ky)d/2 (4) AF 2 = e j(kx−ky)d/2 + e j(−kx+ky)d/2 (5) Next, a PDM-RAM is proposed, which utilizes a 4 × 4 PDMAMC to fill in the AMC ...(5.16 GHz, 9.98 GHz) and three ...
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Broadband Multipath-Rejection Shorted Annular Patch Antenna for GPS Applications
... National Key Laboratory of Science & Technology on Antennas & Microwaves, Xidian University, No. 2 Taibai South Road, Xi’an, China Abstract—A compact shorted annular patch antenna for global positioning system is ...
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An Analytical Approach for Fast Automatic Sizing of Narrow Band RF CMOS LNAs
... of 1 GHz and 5 GHz, respectively, when the corresponding sets of the design variable values obtained using the automatic sizing algo- rithm are used for the ...
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Gamma shaped monopole patch antenna for tablet PC
... be able to cover the existing bands and LTE bands. The operating bands are: 700–960 MHz (lower operating band) and 1500 – 2500 MHz (upper operating band), which also correspond with the LTE bands 1–4 (1710–2170 ...
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Design of an Edge-Fed Quad-Band Slot Antenna for GPS/WiMAX /WLAN Applications
... slot and the T-shaped patch, while the shorter one is from the feed point to the end of the inner circular slot. It can be seen that the length of the longer path is much greater than the length of the rectangular patch, ...
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Modified Phasing Element for Broadband Reflectarray Antennas
... Reflectarrays require at least 360 ◦ phasing range for the reflection of their elements at a given frequency of operation. This requirement is usually not obtained by typical microstrip phasing elements such as square ...
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New Technologies Driving Decade Bandwidth Radio Astronomy: Quad ridged Flared Horn and Compound Semiconductor LNAs
... 4. While spectral line observations typically require the highest sensitivity and may thus not be the first candidate for decade-bandwidth systems, such systems could still prove valuable to search for radio spectral ...
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Intramolecular inhibition of human defensin HNP 1 by its propiece
... D/4760 D), uncleaved proHNP-1 (8232 D), and mature HNP-1 (3442 D). During RP-HPLC, the recombinant HNP-1 (rHNP-1) eluted from the C18 column at 34% acetonitrile, same as na- tive HNP-1 ...
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