Frequency-separator waveguide module with double circular polarization

A technology of frequency separation and waveguide, which is applied in the field of frequency divider waveguide modules, and can solve the problems of high cost and large volume

Inactive Publication Date: 2005-02-16
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this solution has the disadvantage of being bulky due to the use of a divider with several arms for access
Also, expensive due to the use of elements such as filters, transitions, and bulkheads that are difficult to manufacture and assemble

Method used

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  • Frequency-separator waveguide module with double circular polarization
  • Frequency-separator waveguide module with double circular polarization
  • Frequency-separator waveguide module with double circular polarization

Examples

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Embodiment Construction

[0021] image 3 A frequency divider waveguide module with dual circular polarization according to the present invention is schematically shown. The module comprises an antenna duplexer 8 in which a partition with a plurality of steps 9 is arranged, said partition being used as a polarizer. The spacer is accommodated in the waveguide portion 10 having a square cross section, as shown here by a dotted line. The antenna duplexer has two parallel access points 11A and 11B with a rectangular cross-section consisting of shorter waveguide elements, one of which, eg, access point 11A, will be used for transmission and the other, eg Access point 11B, will be used for reception. Waveguide units having a rectangular cross section corresponding to these access points 11A and 11B are connected to the waveguide section 10 at the center protruding into one end of the waveguide section 10 and on each side of the common partition section 12 . In the exemplary embodiment presented, the space...

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Abstract

The module comprises an input / output access point 10 at a first end of a waveguide with a square cross section, called a square waveguide, two access points 11A, 11B made of waveguides with a rectangular cross section, called rectangular waveguides, placed side by side at a second end of the square waveguide and a septum 9 positioned in the square waveguide at the end of a separation region 12 common to the two rectangular waveguides in order to allow the production of two circular polarizations of opposite handedness each associated with a rectangular waveguide.The module is arranged so as to form a diplexer in which the septum is included and where the access points by rectangular waveguide 11A, 11B are extended by filters 13A, 14B, each access point being endowed with a filter provided in order to transmit a frequency band which is different. The steps of the septum are dimensioned so as to compensate for the reflections.

Description

technical field [0001] The present invention relates to a frequency divider waveguide module with dual circular polarization, more specifically intended to act as an antenna access module for a transmitter-receiver that operates simultaneously in two frequency bands operation, and have opposite circular polarizations for transmit and receive. Background technique [0002] It is especially desirable to use this type of transmitter-receiver and thus this type of module in systems for transmitting and receiving at relatively high bit rates via low-orbit satellites. The possibility of using the same access point to transmit and receive with the system at the same time means that a high degree of isolation can be obtained between the transmit path and the receive path of the antenna access point, and the dual circular polarization is on a larger frequency band bandwidth It has high polarization purity. For example, right circular polarization for the transmit path and left circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/213H01Q15/24
CPCH01P1/2131H01P1/213
Inventor 菲利普·尚贝兰帕特里斯·伊尔茨林让-伊夫·勒纳尔
Owner THOMSON LICENSING SA
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