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Feed connector or output coupling device of multilayer coaxial wire

A technology of coaxial feeder and output coupling, applied in the field of coaxial feeder

Inactive Publication Date: 2005-04-27
凯仕林欧洲股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Conversely, however, simple applications are also conceivable in which, for example, a multilayer antenna system is operated in only one frequency band, for which of course no suitable and simple commercially available feed-through or output coupling is known.

Method used

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  • Feed connector or output coupling device of multilayer coaxial wire
  • Feed connector or output coupling device of multilayer coaxial wire
  • Feed connector or output coupling device of multilayer coaxial wire

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Embodiment Construction

[0044] As attached figure 1 The multi-band antenna includes the first antenna device A with two half-dipoles 3'a and 3"a. In the illustrated embodiment these are made of conductive cylindrical tubes. These will be located above the drawing. The half-dipole 3'a is formed in a pot shape, that is to say, the end 7a' of the dipole critical to the second half-dipole 3'a is closed in a pot shape.

[0045] The lengths of these half-dipoles 3'a and 3"a are dependent on the frequency band to be transmitted and in the embodiment shown are adjusted to the transmission of the lower GSM-band, that is to say corresponding to GSM-mobile The 900MHz-band transmission of the wireless standard.

[0046] In order to transmit the second frequency band, which is 1800MHz in the illustrated embodiment, a second dipole-shaped antenna is arranged, and the half-dipoles 9'a and 9"a correspond to the higher frequency bands to be transmitted. The size in length is relatively short, and in the illustrated embo...

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Abstract

A feeding or decoupling device for coaxial lines has a spur line (SL) which is short-circuited at the end. The aim of the invention is to provide at least one simple coaxial line with a broadband connection between the inner and outer conductor or to provide at least one simple coaxial line with a corresponding, at least narrow band, preferably also broadband, short circuit connection between the inner and outer conductor. To this end, at least two interwoven coaxial spur lines (SL1, SL2) are provided preferably, said spur lines each being short-circuited at the end with a short circuit (KS1, KS2) and the length of the spur lines being measured in such a way that the appropriate short circuit (KS1, KS2) is transformed to no-load at the feeding and connecting point (46) according to the frequency band range.

Description

Technical field [0001] The invention relates to a coaxial feeder, in particular to a feeder device or an output coupling device for multiple coaxial feeders. Background technique [0002] For many applications, the following questions are raised. Connect the inner conductor of the coaxial feeder to the potential of the outer conductor, which is generally grounded. In practice, for example, this can be carried out by a short-circuited λ / 4 stub in parallel with other lines. In other words, the inner wire and outer wire are short-circuited at the end of the coaxial stub. Although the short-circuited λ / 4-short wire of the inner wire and the outer wire are electrically connected through a parallel circuit, if the length of the coaxial feeder is one-fourth of the relevant wavelength, the parallel circuit will not change the input of other circuits impedance. That is, the short wire at the end of the coaxial stub is converted to the input end of the line. If it is only a narrowband oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/14H01P1/213H01P5/02H01P5/16H01Q1/50H01Q5/25H01Q5/371H01Q5/48H01Q9/18H01Q9/28H01Q11/14H01Q13/28H01Q21/30H02G15/08
CPCH01Q5/0086H01P5/16H01Q21/30H01Q5/0058H01Q9/285H01Q9/28H01Q5/0017H01Q5/25H01Q5/371H01Q5/48H01P5/12
Inventor M·斯托勒
Owner 凯仕林欧洲股份有限公司