<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Antenna - Az tkapcsolhat, ktelemes irnytott sugrz</TITLE> <META http-equiv=Content-Type content="text/html; charset=unicode"> <META content="MSHTML 6.00.6000.16674" name=GENERATOR> <STYLE type=text/css> <!-- .style2 {font-size: 12pt} --> </STYLE> </HEAD> <BODY> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; mso-line-height-alt: 12.0pt" align=center><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-SIZE: 18pt; mso-bidi-font-size: 12.0pt">14.2.3. Az tkapcsolhat, ktelemes irnytott sugrz<O:P></O:P></SPAN></B></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify"><O:P></O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 10.3pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">A 14.11. brn egy tovbbi, egyirny hosszsugrzt mutatunk be, ennek azonban a fQ sugrzsi irnyt elektromosan, egyszerq tkapcsolssal 180-kal meg lehet vltoztatni. Ez az irnyhats antenna kt prhuzamos hajltott diplust tartalmaz. A kt antennaelem egyforma hosszsg, s mindkettQhz egy-egy ultrarvid hullm szalag kbel csatlakozik. A hozzvezetseknek egyforma hosszaknak kell lennik, egybknt azonban tetszs szerinti lehet a hosszsguk. Als vgket egy elektromosan /4 hosszsg, ugyanolyan anyag vezetk kti ssze.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 11.25pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">Egy ktsark tkapcsolval vagy megfelelQ relvel tetszs szerint hol az egyik, hol a msik diplust lehet a levezets s a negyedhullm vezetkdarab sszektsi pontjban az ad kimenethez csatlakoztatni.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 10.8pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">Az antenna mqkdst a 14.11. bra alapjn jl kvethetjk. Mindig csak az egyik - mgpedig a sugrznak hajtott - antennaelemet ktjk ssze a hozz tartoz szalagvezetk tjn kzvetlenl az ad kimenetvel. A msik antennaelemet is gerjesztjk, de nem kzvetlenl, hanem a ,/4 elektromos hosszsg kerlQvezetken keresztl. Ily mdon ez utbbi antennaelem 90 fziseltolssal kapja a tpllst, vagyis mint reflektor mqkdik.<B style="mso-bidi-font-weight: normal"> <O:P></O:P></B></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 10.3pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">A 14.11. brn lthat egyszerq tkapcsol tjn 180-kal tbillenthetjk a fQ sugrzsi irnyt. Az brn feltntetett kapcsolsi helyzetben a berajzolt sugrzsi irny rvnyes.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 10.55pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">Az ad vgerQstQ fokozata s az tkapcsol kztti vezetk, tetszs szerinti hosszsg lehet, a hullmellenllsnak azonban 120...150 -nak kell lennie. Klnsen jl megfelel erre a clra egy 120 hullmellenlls rnykolt, szimmetrikus, kthuzalos (pldul 120 D 10-1 tpus) vezetk.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify"><O:P></O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center" align=center><B style="mso-bidi-font-weight: normal">14.5. tblzat. </B>A 14.11. bra szerinti ktemeletes antenna mretezse</P> <DIV align=center> <TABLE class=MsoNormalTable style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 3.5pt 0cm 3.5pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext" cellSpacing=0 cellPadding=0 border=1> <TR> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 66.5pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt" width=89> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>AmatQrsv</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 72pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" width=96> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>Az L hossz</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>Az A tvolsg</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>A /4 kerlQ vezetk hossza</P></TD></TR> <TR> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 66.5pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=89> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>MHz</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 72pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=96> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>m</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>m</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center; mso-outline-level: 1" align=center>m</P></TD></TR> <TR style="mso-yfti-lastrow: yes"> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 66.5pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=89> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 27.0pt"><B style="mso-bidi-font-weight: normal">7<O:P></O:P></B></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 27.0pt"><B style="mso-bidi-font-weight: normal">14<O:P></O:P></B></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 27.0pt"><B style="mso-bidi-font-weight: normal">21<O:P></O:P></B></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 27.0pt"><B style="mso-bidi-font-weight: normal">28</B></P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 72pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=96> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 28.85pt">20,57</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 28.85pt">10,30</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 28.85pt">6,85</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 28.85pt">5,09</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 30.7pt">10,64</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 30.7pt">5,32</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 30.7pt">3,54</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 30.7pt">2,65</P></TD> <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 3.5pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 3.5pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 23.55pt">8,72</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 23.55pt">4,36</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 23.55pt">2,90</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify; mso-outline-level: 1; tab-stops: decimal 23.55pt">2,17</P></TD></TR></TABLE></DIV> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify"><O:P></O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 8.15pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">Ennek az antennnak szintn kardioid alak az irnyjelleggrbje, htrasugrzsi csillaptsa pedig tlagosan 20dB. Krl bell 4<SPAN style="mso-bidi-font-weight: bold">dB</SPAN><B style="mso-bidi-font-weight: normal"> </B>antennanyeresggel szmolhatunk.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.8pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: justify">Ez a rendszer is csak egysv zemre alkalmas. <B style="mso-bidi-font-weight: normal">A </B>megpts hez szksges mretadatokat a 14.5. tblzat tartalmazza.</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center" align=center>&nbsp;</P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: center" align=center><IMG height=581 src="abra/01411abra.jpg" width=547> <O:P>&nbsp;</O:P> </P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; mso-line-height-alt: 6.0pt" align=center><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt">14.11. bra</SPAN></B><SPAN style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt">. <I>Ktelemes, irnyhats antenna. A&nbsp;fQ sugrzsi irny elektromosan vltoztathat</I><O:P></O:P></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><O:P></O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><O:P></O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><O:P></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center style2><SPAN style="mso-bidi-font-size: 12.0pt"><A href="1422.html">A HB9CV-antenna</A></SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<A href="content.html">Tartalom</A>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<A href="15.html">Egszhullm hurokkal mqkdQ, irnyhats antennk</A></P></BODY></HTML>