Results 271 to 280 of about 11,299,846 (307)
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MTT-S International Microwave Symposium Digest, 2005
This paper will report on the structure and performance of GaAs FETs developed for K-band applications. A power output of 27dBm was obtained with 5dB gain at 21GHz. A novel low loss waveguide to microstrip transition was used in the measurement. Its design will be described.
L.S. Rosenheck, D. Herstein, I. Drukier
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This paper will report on the structure and performance of GaAs FETs developed for K-band applications. A power output of 27dBm was obtained with 5dB gain at 21GHz. A novel low loss waveguide to microstrip transition was used in the measurement. Its design will be described.
L.S. Rosenheck, D. Herstein, I. Drukier
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1946
Abstract : An echo line is a long waveguide in which the radar pulse re-echoes producing a series of pulses on the indicator for test purposes. The fabrication and testing of an 18inch helix of an oversized K-band waveguide 150 ft long are discussed. Tests showed the attenuation to be 0.029 dh/foot, which suggests the use of such oversized waveguide ...
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Abstract : An echo line is a long waveguide in which the radar pulse re-echoes producing a series of pulses on the indicator for test purposes. The fabrication and testing of an 18inch helix of an oversized K-band waveguide 150 ft long are discussed. Tests showed the attenuation to be 0.029 dh/foot, which suggests the use of such oversized waveguide ...
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Signal distribution circuit for K-band
2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON), 2016The construction, work principle and analysis results for wideband microwave power distribution circuit have been presented in the paper. The circuit was designed for cooperation with electronic warfare or reconnaissance subsystems, planar antenna arrays and other one, working in K-band.
Bronislaw Stec +2 more
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K-Band BARITT Doppler Detectors
MTT-S International Microwave Symposium Digest, 2005The properties of K-band BARITT devices for use as self-mixing doppler detectors have been studied experimentally and with a simplified computer model. The computer results predict sensitive BARITT doppler operation even at low power levels. The experimental results show that the BARITT is superior to both IMPATT and Gunn devices for use as self ...
J.R. East, P.J. McCleer, G.I. Haddad
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K band Gaussian beam oscillator
1994 24th European Microwave Conference, 1994A K band Gaussian beam oscillator, with a new quasi-optical resonator, is described. The resonator consists of a plane mirror substrate and a concave spherical mirror with a highly reflective, partially transparent region. A high Q factor, obtained by using this spherical mirror, results in a low phase noise of the oscillator and the output power is ...
Masahiro Kiyokawa, Toshiaki Matsui
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Optically controlled K-band oscillator
IEEE International Digest on Microwave Symposium, 2002PIN photodiodes play an important role in detection of modulated light in fiberoptic links, however, these devices are essentially junction devices, with bias-dependent capacitance very similar to those of varactor diodes. Particularly under proper biasing conditions, junction capacitance of these devices can be changed by light illumination.
R. Saedi +3 more
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K-band circulators on semiconductor wafers
1996 IEEE MTT-S International Microwave Symposium Digest, 2002We report on the development of K-band circulators operating at 20 and 35 GHz which have been monolithically integrated with both GaAs and epitaxial GaAs-on-Si wafers. They demonstrate the potential for a fully integrated T/R module application.
J.D. Adam +6 more
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K-band capacitive MEMS-switches
2000 Topical Meetings on Silicon Monolithic Integrated Circuits in RF Systems. Digest of Papers (Cat. No.00EX397), 2002In this paper single-pole single-throw K-band microelectro-mechanical capacitive switches are discussed, exhibiting low insertion losses (
M. Ulm +4 more
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2023 IEEE 6th International Conference on Electronic Information and Communication Technology (ICEICT), 2023
Jiangcan Zhu +5 more
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Jiangcan Zhu +5 more
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Imaging Distant Galaxies in the K Band
1994Using the results of a large K band imaging survey of distant galaxies with spectroscopic redshifts, we argue quantitatively that deep K band galaxy surveys require: (1) high-precision photometry to contribute substantial new information about the spectral energy distributions (SED) of galaxies at z 0.5.
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