Millimeter Wavelength Frequency Multipliers
نویسندگان
چکیده
منابع مشابه
Millimeter - Wavelength Spectroscopy
Millimeter-wavelength spectra were obtained of CO, HCN, H2CO, and CH3OH in Comet C/1996 B2 (Hyakutake) with the NRAO 12-m telescope on 21 Mar 1996 UT. The emission of CO, H2CO and HCN was mapped in the coma when the comet was 0.2 AU from the Earth, providing a detailed look at the behavior of these species in the inner coma. The mapping data indicate the presence of multiple velocity components...
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In this letter, the ambipolar transport properties of graphene flakes have been used to fabricate full-wave signal rectifiers and frequency-doubling devices. By correctly biasing an ambipolar graphene field-effect transistor in common-source configuration, a sinusoidal voltage applied to the transistor gate is rectified at the drain electrode. Using this concept, frequency multiplication of a 1...
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We have observed a core in the northern streamer of the IC5146 cloud using the MPIfR 19-channel Bolometer system on the IRAM 30m telescope at a wavelength of 1.2 mm. We smoothed our observations to the same angular resolution (30) as a new map of the NIR extinction of this cloud (Lada, Alves, and Lada 1998) and in this way obtained direct measurements of the ratio of millimeter emissivity to du...
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The demand for high capacity data communication is increasing continuously and rapidly. More Network-based multimedia applications such as Internet protocol Television (IPTV), video on demand (VoD), voice over Internet protocol (VoIP), and other broadband services are emerging. Due to congestion in the lower frequency bands many of the services may use millimeter wavelength bands. A good unders...
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ژورنال
عنوان ژورنال: IEEE Transactions on Microwave Theory and Techniques
سال: 1981
ISSN: 0018-9480
DOI: 10.1109/tmtt.1981.1130391