SU1631630A1

SU1631630A1 - Waveguide polarizer

Info

Publication number: SU1631630A1
Application number: SU884424785A
Authority: SU
Inventors: Алексей Дмитриевич Французов; Елена Васильевна Баннова
Original assignee: Предприятие П/Я А-7162
Priority date: 1988-05-10
Filing date: 1988-05-10
Publication date: 1991-02-28

Abstract

Изобретение относитс к радиотехнике. Цель изобретени - обеспечение регулировки коэффициента эллиптичности и уменьшение уровн кросспол ризации. Пол ризатор содержит корпус 1, внутри которого размещены отрезок круглого волновода (ОКБ) 2, пластина 3, установленна с возможностью перемещени в направлении, перпендикул рном оси ОКБ 2,посредством винта 4, св занного резьбами с корпусом 1 и с резьбовой микрометрической втулкой (РМВ) 5, и направл ющие 6, проход щие через пластину 3 и корпус 1. РМВ 5 жестко соединена с направл ющими 6, шаг ее резьбы равен 0,5 шага резьбы части винта 4, расположенного в корпусе 1, а ОКБ 2 выполнен из упругого материала. Широка стенка перехода 7 от пр моугольного волновода составл ет угол 45&deg; с продольной осью винта 4. При ввинчивании винта 4 с помощью стакана 10 попе- pe4Hoet сечение ОКБ 2 за счет перемещени пластины 3 и корпуса 1 дефйрмируетс в эллиптическое, что приводит к фазовому сдвигу между составл ющими вектора Е волны Ни в ОКБ 2, расположенными по большой и малой ос м эллиптического сечени и, соответственно, к изменению на выходе ОКБ 2 пол ризации от линейной до круговой при малом уровне кросспол ризации . 2 ил. сл СThe invention relates to radio engineering. The purpose of the invention is to provide adjustment of the ellipticity coefficient and decrease the level of cross-polarization. The polarizer includes a housing 1 inside which a segment of a circular waveguide (ESC) 2 is placed, a plate 3 mounted for movement in a direction perpendicular to the axis of the EEC 2, by means of a screw 4 connected by threads to the housing 1 and with a threaded micrometer bushing ) 5, and guides 6 passing through plate 3 and body 1. PMB 5 is rigidly connected to guides 6, its thread pitch is 0.5 thread pitch of the part of the screw 4 located in body 1, and OKB 2 is made of elastic material. The wide wall of the junction 7 from the rectangular waveguide makes an angle of 45 °. with the longitudinal axis of the screw 4. When screwing in screw 4 using cup 10 of 4Hoet, the section of OKB 2 is displaced to elliptical by displacing the plate 3 and housing 1 into an elliptical the major and minor axes of the elliptical section and, accordingly, to a change in the output of the OKB 2 polarization from linear to circular with a small level of cross polarization. 2 Il. sl C

Description

Фиг. 2FIG. 2

Claims

Claim

A waveguide polarizer comprising a housing in which a segment of a circular waveguide and a plate are placed, which can be moved in a direction perpendicular to the axis of a segment of a circular waveguide, by means of a screw located in the center of the plate and connected. a thread with a housing, characterized in that, in order to ensure adjustment of the ellipticity coefficient and to reduce the level of cross polarization, guides are introduced installed in the housing and passing through the plate at the corners, a threaded micrometric sleeve rigidly connected to the guides and connected by a thread with a screw that is installed inside her, and the thread pitch of the threaded micrometric sleeve and part of the screw located in it is equal to 1/2 of the thread pitch of the screw, and the segment of the circular waveguide is made of elastic material.