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[[Category:Antennas]] [[Category:Antennas (radio)]] ...

...cient",<ref>{{cite book |last1=Hansen |first1=Robert C |title=Phased array antennas |publisher=John Wiley and Sons |pages=Chapter 7.2.3|date=2009}}</ref> howev ...ted by:<ref>{{cite book |last1=Hansen |first1=Robert C |title=Phased array antennas |publisher=John Wiley and Sons |pages=Chapter 7.2.3|date=2009}}</ref> ...

...ition for Extended Hemispherical Lenses Based on Ray Tracing |journal=IEEE Antennas and Wireless Propagation Letters |date=2016|volume=15 |page=1963 |doi=10.11 [[Category:Antennas (radio)]] ...

...teristic changes because of the grouping. This phenomenon is observed when antennas are grouped together. The radiation (or reception) pattern of the antenna g ...mode,<ref>{{cite journal |title=IEEE Standard for definitions of terms for antennas |journal=IEEE STD |date=2014}}</ref> with the time convention <math> e^{j\o ...

...for multiple-input multiple-output ([[MIMO]]) antenna systems and [[array antennas]], where the outgoing power is unwanted reflected power. The name shows the ...th (signal processing)|bandwidth]] and [[radiation]] performance. When the antennas are made of lossless materials, TARC can be computed directly from the [[sc ...

...ed for long baseline radio interferometry only in 1974. A minimum of three antennas are required. This method was used for the first [[VLBI]] measurements, and ...h>x_{3}=(a_{1}+a_{2})\cos\theta</math>. When one mixes signals from two of antennas (compensating for a delay for the angle <math>\theta_{0}</math>) one observ ...

...y model.svg|thumb|336x336px|Geometry of the six-ray model with location of antennas of equal heights at any point of the street in top view.]] === Antennas of heights equal located in the center of the street === ...

.... Mathematically, the equation for [[parabolic antenna|parabolic reflector antennas]] can be expressed as:<ref>{{Cite journal |last=Ruze |first=J. |date=1966 | [[Category:Antennas (radio)]] ...

...stead of distributing the radar elements throughout the surveillance area, antennas are closely located to obtain better spatial resolution, Doppler resolution ...That is, a 12-element '''virtual antenna array''' is created using only 7 antennas by conducting [[digital signal processing]] on the received signals, thereb ...

...r array]] (ULA) of interconnected transducer elements, e.g. microphones or antennas, where the individual elements are arranged in a straight line spaced at on [[Category:Antennas (radio)]] ...

...n spiral]] antennas'' are the most popular, while ''[[logarithmic spiral]] antennas'' are independent of frequency:<ref> |title=Antennas ...

==Antennas== ...

| title = Physical limitations of omni-directional antennas | title = Small antennas ...

...ting the RCS of an arbitrarily shaped cavity |journal=IEEE Transactions on Antennas and Propagation |date=1989|volume=37 |issue=2 |page=194 |doi=10.1109/8.1870 [[Category:Antennas (radio)]] ...

...at their ends, these are the transmitting and receiving [[Antenna (radio)|antennas]] that it's locate in such a way that their heights don't surpass the limit === Analysis for antennas of heights different heights located in street's any point === ...

...line]]s, overhead telecommunication lines, some type of [[Antenna (radio)|antennas]] or for [[aerial tramway]]s.{{cn|date=December 2023}} * [[List of spans]] — longest spans of ropes used as power lines, antennas or aerial tramways. ...

{{Antennas|characteristics}} ...[IEEE]] |id=Std 145-2013 |title=IEEE Standard for Definitions of Terms for Antennas}}</ref> ...

...[Focus (optics)|foci]], so can focus [[wavefront]]s to or from two feeding antennas simultaneously.<ref name="martinez-de-rioja" /> ..."Design of millimeter wave microstrip reflectarrays," IEEE Transactions on Antennas and Propagation, vol. 45, no. 2, pp. 287–296, 1997.</ref> ...

{{Antennas|characteristics}} ...with uniform, ''circular'' cross-sections to be applied in the analysis of antennas constructed from small conductors with uniform, ''non-circular'' cross-sect ...

...https://www.researchgate.net/publication/260311781 | series = Advances on Antennas, Reflectors and Beam Control, Editor Antonio Tazón | year = 2005 | publishe ...tennas and 3 Dimensional Fresnel antennas. They are a class of diffractive antennas and have been used from radio frequencies to X rays. ...