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pencil beam – Wikipedia

pencil beam

aus Wikipedia, der freien Enzyklopädie

Sehr stark gebündelte elektromagnetische Wellen werden oft im Fachenglisch als pencil beam bezeichnet. Es wird damit anschaulich ein Sendestrahl beschrieben, der „dünn wie ein Bleistift” ist.

Antennen mit einem „pencil beam“ haben also einen sehr schmalen Öffnungswinkel und somit einen sehr großen Antennengewinn. Pencil-Beam-Antennen finden Verwendung als Feuerleitradar. Echte 3D-Radargeräte der Luftverteidigung strahlen ebenfalls pencil beams ab.

Static Wikipedia 2008 (March - no images)

aa - ab - als - am - an - ang - ar - arc - as - bar - bat_smg - bi - bug - bxr - cho - co - cr - csb - cv - cy - eo - es - et - eu - fa - ff - fi - fiu_vro - fj - fo - frp - fur - fy - ga - gd - gl - glk - gn - got - gu - gv - ha - hak - haw - he - ho - hr - hsb - ht - hu - hy - hz - ia - id - ie - ig - ii - ik - ilo - io - is - it - iu - jbo - jv - ka - kab - kg - ki - kj - kk - kl - km - kn - ko - kr - ks - ksh - ku - kv - kw - ky - la - lad - lb - lbe - lg - li - lij - lmo - ln - lo - lt - lv - map_bms - mg - mh - mi - mk - ml - mn - mo - mr - ms - mt - mus - my - mzn - na - nah - nap - nds - nds_nl - ne - new - ng - nn - -

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