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  • {{Short description|Radio modulation design}} ...=4 |pages=613–627 |date=2008 |doi=10.1017/S0373463308004918 }}</ref> is a modulation design proposed for [[Galileo (satellite navigation)|Galileo]]<ref name="GA ...
    2 KB (336 words) - 04:08, 17 April 2024
  • ...into two parts, therefore BOC modulation is also known as a split-spectrum modulation. Their major advantages are, that one can shape the spectrum to allow inter The main idea behind BOC modulation is to reduce the interference with [[BPSK]]-modulated signals, which have a ...
    6 KB (939 words) - 02:54, 13 December 2024
  • {{Modulation techniques}} ...cy-discrete modulation of signals for narrow-band communication channels// Radio electronics and communications systems c/c of Izvestiia- vysshie uchebnye z ...
    14 KB (1,897 words) - 05:32, 22 July 2023
  • Here the ''modulation wavelength'' ''λ''<sub>mod</sub> is given by:<ref name=Kinsman/><ref name=D The modulation wavelength is double that of the envelope itself because each half-waveleng ...
    14 KB (2,102 words) - 23:18, 15 July 2024
  • ...current can be measured by means of an electrical spectrum analyzer over a radio frequency (RF) range that is limited by the electrical bandwidth of the det ...ise (mostly at low RF frequencies) due to competition among several lasing modes. ...
    23 KB (3,478 words) - 18:29, 18 December 2024
  • {{Short description|Type of satellite that transmits over amateur radio frequencies}} {{amateur radio}} ...
    51 KB (6,526 words) - 03:34, 11 October 2024
  • | name = Pulse-code modulation {{Modulation techniques}} ...
    34 KB (4,917 words) - 15:50, 19 November 2024
  • ...nsmitting antennas and their feed lines; high [[standing wave ratio]] on a radio or TV antenna can distort the signal, increase transmission line loss and p The slotted line is one of the basic instruments used in [[radio frequency]] test and measurement at [[microwave]] frequencies. It consists ...
    20 KB (3,095 words) - 15:25, 17 March 2023
  • ...th of the structure. From a more sophisticated point of view, the periodic modulation creates a guided wave that consists of an infinite number of space harmonic modes). Although the main (''n''&nbsp;=&nbsp;0) space harmonic is a slow wave, on ...
    21 KB (3,205 words) - 16:44, 29 January 2022
  • ...w {{nowrap|2 kHz}} bandwidth signals in [[single-sideband modulation|SSB]] radio receivers. It operates at {{nowrap|455 kHz}}, a common [[intermediate frequ ...r]] usually used in place of an [[electronic filter]] at [[radio frequency|radio frequencies]]. Its purpose is the same as that of a normal electronic filt ...
    57 KB (8,456 words) - 05:48, 18 March 2024
  • ...|last=Woodbury, Ng|title=Ruby operation in the Near IR|journal=Proc. Inst. Radio Eng.|volume=50|pages=2367}}</ref><ref>{{Cite journal|last1=Jones|first1=W. ...n CRS,<ref name=":4" /> two lasers are used to excite specific vibrational modes of molecules to be imaged. The laser with a higher photon energy is normal ...
    33 KB (4,780 words) - 16:40, 24 November 2024
  • ...onator''' ('''LGR''') is an electromagnetic resonator that operates in the radio and microwave frequency ranges. The simplest LGRs are made from a conductin ...ingled out as having inductance <math>L_0</math>, then one of the resonant modes is one in which all of the magnetic flux from each of the external loops of ...
    32 KB (4,864 words) - 00:43, 29 November 2024
  • ...iniaturized ([[Electrically small antenna|electrically small]]) [[Antenna (radio)|antenna system]]s.<ref>Slyusar V. I. 60 Years of Electrically Small Antenn ...e newest metamaterial antennas radiate as much as 95 percent of an input [[radio signal]]. Standard antennas need to be at least half the size of the signal ...
    76 KB (10,443 words) - 16:34, 29 January 2025
  • The electromagnetic spectrum extends from low frequencies used for modern radio to [[Gamma ray|gamma radiation]] at the short-wavelength end, covering wave ...B.|author2=S. Guenneau|year=2004|title=Split-ring resonators and localized modes|url=http://www.maths.liv.ac.uk/~guenneau/prb2004a.pdf|journal=Phys. Rev. B| ...
    51 KB (7,141 words) - 16:21, 24 February 2025
  • ...jectory by a static magnetic field and accelerated by a rapidly varying ([[radio frequency]]) electric field. Lawrence was awarded the 1939 [[Nobel prize in ...other and to the direction of travel, or propagation."</ref> It includes [[radio wave]]s, [[microwave]]s, [[infrared]], [[Light|(visible) light]], [[ultravi ...
    279 KB (40,634 words) - 08:09, 28 January 2025