DE7034507U - FOLDING DIPOLE FOR SHORTWAVE CURTAIN ANTENNAS, HIGH PERFORMANCE. - Google Patents

Description

'ά CItI

5 79/70 iiyr; niieiin, dbn July 21, 1970

ΡΛ'Γ-Pt / Hu.

"Folded dipole for i'.ursuellenvoriianKantennfcn great performance"

The innovation concerns a folding dipole for shortwave curtains =
antennas of great power.

Folded dipoles are advantageous in transmitting antennas for shortwave =
radiation used. In order to achieve certain horizontal
or vertical radiation characteristics they are classified into
certain, well-known forms of being one or more in form
so-called curtain antennas. However, they are of use
limits are set by folding dipoles for such curtain antennas,
since folding dipoles are generally only made up of one conductor element,. which is why, in particular, only a limited power emitted can be grounded. In addition, it is difficult to control the high electrical field strengths that occur at the faIt = 'dipole or the folded dipole of the curtain. A white =! Another essential disadvantage is that Faltdipolt.
btst-ehend from only one ladder element, a small width =
to have bond.

The task of guiding is to create a folded dipole, also usable for ^{1 curtains 1} η barrel,: ^ o, that it once a j 'ι

70315071 * tJ!

possesses greater broadband, and which due to its low wave resistance and its better adaptation to the feed line, Marder can see a higher performance.

According to the innovation, the object is achieved in that pathogens, Coupling radiators and connecting bridges each consist of several conductor elements arranged in the shape of a trap.

The advantage of this arrangement is that by the trap-shaped structure of the individual elements is lower Characteristic impedance value of the individual folding dipole is reached. This has an increase in the broadband capability of its Input impedance - at the connection point of the feed line to the folded dipole - as well as a reduction in the outer. Ends of the folding dipole. «? - on the Errer.er. Coupling radiator, the connecting bridges and contact points of the individual folded dipole elements - occurring electrical field strength result. The latter proves to be particularly advantageous for high performance.

The drawing shows an exemplary embodiment of a conductor elements arranged in the shape of a trap Folded dipole shown.

The two exciters 1, 1 ·, through a distance isolator 8 are connected to one another and to which the feed line 9 is connected are screwed contacts 5 with articulated suspension via the connecting bridges 3, 3 'connected to the coupling radiator 4. Thereby exist the individual elements from ladder elements 2, which through

.strahler Ί v ^ 'bundim. JabL-i pass the one-of-a-kind

! au: j Lfciteveluir.fciittn 2 by iialter; n-e G zylindcrröriüi

! ^ eniilton are and before: ·, ilalocrij ^; υ to. Screw ¹ /.outakt 5

i Kuliiui'oiKi ointn Kto <: l ^ O uilvitü. Direl: t to the r.-in-nubkon =

j clocks 5 are cut-off isolators 7 over which the

ί Faltciipol is abo-spanned.

Claims (1)

uli U υ '.- ct; ~ io "3 ^ Ί · -_; 1U Folded dipole antennas for Kurzvielienvorlian ^ c ^r o £ he power, characterized in that the exciter (1> I ^1), coupling spotlight ⁽² I) and Verbindun £ Sbrücken (3, 3 ') ^ us reusciiaiii anceoriineten Leitei'elementen (2 ) exist. Folded dipole according to Claim 1, characterized in that the Errec ^er (1, I ¹ ), coupling radiator ( ¹ I) and connection = bridge (3, 3 ') are connected to one another by means of screw contacts (5) with ^ e = articulated bulges and through them Abspannisolatoreri (7) are directly tensioned, with a distance insulator (3) ^{between the exciters (1, I 1) at the supply.} Γ I (ICfV;! .- 7, .1 / LA)