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Comparison of Antennas Electrical Tuning Methods for Mobile Applications
Известия высших учебных заведений России: Радиоэлектроника, 2017 The various methods of antenna electrical tuning for mobile handsets working in several LTE frequency bands are described. The PIFA-type antenna containing high and low frequency branches is proposed.
A. D. Grigoriev, B. Djalilov
doaj
Maser cavity servo-tuning system [PDF]
, 1985 Two collocated, weakly coupled probes, one loop and one dipole, detect the magnetic and electric fields inside a maser cavity. Signals from the probes are compared in phase, and the signal output from the phase detector is applied to a varactor, the ...
Sydnor, R. L.
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Submillimeter satellite radiometer Final engineering report [PDF]
All solid-state superheterodyne Dicke radiometer for submillimeter ...
Bauer, R. J. +6 more
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IEEE AccessIn this paper, a novel reconfigurable linearly polarized ultrathin unit cell design for lens applications at Ka-band frequencies (26-28.75 GHz) is presented.
Zohre Pourgholamhossein +1 more
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Low distortion automatic phase control circuit [PDF]
, 1974 A voltage controlled phase shifter is rendered substantially harmonic distortion free over a large dynamic input range by employing two oppositely poled, equally biased varactor diodes as the voltage controlled elements which adjust the phase shift ...
Hauge, G., Pederson, C. W.
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Kompetensi guru dalam pengajaran amali reka bentuk dan teknologi di Sekolah Rendah Daerah Batu Pahat [PDF]
, 2007 Kompetensi bermaksud kemampuan atau kecekapan seseorang individu dalam melakukan sesuatu tugasan. Kompetensi juga merujuk kepada kemampuan seseorang dalam melaksanakan sesuatu yang diperolehi melalui pendidikan dan juga merujuk kepada prestasi dan ...
Md Harun, Zaiha Nabila
core
Tunable multiband microstrip antenna for 5GHz WLAN [PDF]
, 2013 Copyright @ 2013. Ali Ejaz, R. Nilavalan & Hattan Abutarboush. This is a research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0 ...
Abutarboush, H, Ejaz, A, Nilavalan, R
core
Submillimeter satellite radiometer first semiannual engineering progress report [PDF]
Development of 560 GHz fourth harmonic mixer and 140 GHz third harmonic generator for use in ...
Bauer, R. J. +5 more
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Application of pressurized liquid nitrogen inside parametric-amplifier structures for input-noise-temperature improvement [PDF]
Pressurized liquid nitrogen inside parametric amplifier structures for input, noise, and temperature ...
Blume, H.-J. C.
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