JPH0419001U

JPH0419001U -

Info

Publication number: JPH0419001U
Application number: JP5983990U
Authority: JP
Priority date: 1990-06-06
Filing date: 1990-06-06
Publication date: 1992-02-18

Description

[Brief explanation of the drawing]

第１図は、本考案の偏波選択受信装置の一実施
例の構造図であり、第２図は、本考案の偏波選択
受信装置をパラボラアンテナの１次放射器に応用
した図である。１……円形導波管、２……短絡板、３……垂直
偏波用プローブ、４……水平偏波用プローブ、５
……第１の低雑音増幅器、６……ブランチライン
形ハイブリツト回路、７……第２の低雑音増幅器
、８……第３の低雑音増幅器、９……第４の低雑
音増幅器、Ｓ_１〜Ｓ_４……制御信号。 FIG. 1 is a structural diagram of an embodiment of the polarization selective receiver of the present invention, and FIG. 2 is a diagram of the polarization selective receiver of the present invention applied to the primary radiator of a parabolic antenna. . 1...Circular waveguide, 2...Short circuit plate, 3...Vertical polarization probe, 4...Horizontal polarization probe, 5
...First low noise amplifier, 6... Branch line type hybrid circuit, 7... Second low noise amplifier, 8... Third low noise amplifier, 9... Fourth low noise amplifier, _S1 ~ _S4 ...Control signal.

Claims

[Scope of utility model registration request]

One end of a circular waveguide is opened and the other end is short-circuited, and a probe for vertical polarization in the vertical direction and a probe for horizontal polarization in the horizontal direction are installed in this circular waveguide. The signals appearing in the vertical polarization probe and the horizontal polarization probe are sent to the first and second input terminals of the branch-line hybrid circuit via first and second amplifiers that can be switched into an active state and a non-active state, respectively. and applying the signals appearing at the first and second output terminals of the branch line type hybrid circuit to third and fourth amplifiers which are respectively switched into an operating state and a non-operating state, and using these amplified outputs as output signals, Selectively controlling operating states and non-operating states of the first, second, third, and fourth amplifiers according to either the vertically polarized wave or the horizontally polarized wave incident on the circular waveguide. A polarization selective receiving device characterized in that it is configured to output the output signal or to output the output according to either right-handed circularly polarized wave or left-handed circularly polarized wave.