CN2391381Y

CN2391381Y - Combined quadrupole double outputting C. KU compound high-frequency tuner

Info

Publication number: CN2391381Y
Application number: CN 99242954
Authority: CN
Inventors: 高永利
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-09
Filing date: 1999-09-09
Publication date: 2000-08-09
Anticipated expiration: 2009-09-09

Abstract

The utility model discloses the technique of a combined quadrupole double outputting C, KU compound high-frequency head for the receiving field of satellite communication and broadcast television, which comprises an outer shell and a C band integrated radio frequency head waveguide tube. A feed source of a KU band offset feed radio frequency head is put in the C band waveguide tube, and is fixed at an upper part in the C band waveguide tube. Due to the adoption of technique of a combined quadrupole double outputting C, KU compound high-frequency head, the utility model raises the KU band receiving efficiency of more or less 10%, and C band also obtains the level of a monomer C band radio frequency head; in addition, the utility model has the advantages of compact and simple appearance, easy installation, etc.

Description

Combination four polarization dual output C, KU combined tuner

The utility model relates to C, the KU combined tuner in a kind of satellite communication and the radio and television reception field.

At present, communications satellite mainly transmits satellite signals with C-band and KU wave band, when having C, two kinds of signal load modes of KU wave band on the satellite simultaneously, receive the signal of two different-wavebands on same the satellite with a surface antenna simultaneously, be difficult to reach satisfied and receive.Though two kinds of combined tuners of existing market existing so-called " C or KU " are sold, but this tuner is very big to signal attenuation, and C-band and the mutual serious interference of KU band signal, technology is not high, bulky, still can receive some KU band signal, weak signal is not but received, thereby lose the effect of composite received.

The purpose of this utility model is to provide a kind of combination four polarization dual output C, KU combined tuner that can overcome the shortcoming and defect that C in the past or KU combined tuner exist.

The utility model comprises shell and C-band integral high frequency head waveguide, KU wave band offset-fed tuner feed is put into C-band waveguide internal fixation in C-band waveguide internal upper part position, add a KU waveguide for again KU tuner feed, KU wave band phase compensator is installed on the KU wave band tuner waveguide, insert then in the KU wave band feed, KU wave band high frequency tuner circuit part and C-band high frequency tuner circuit partly are installed in the shell of combined tuner, insert separately probe in the KU wave band tuner waveguide respectively and in the C-band tuner waveguide, and then KU wave band high frequency tuner circuit part and C-band high frequency tuner circuit partly be fixed on the shell with screw, set up C-band tuner and two lead-out terminals of KU wave band tuner.Add a KU waveguide at KU tuner feed place, this waveguide has two aspect effects, first with the KU signal feed is in the KU tuner from the feed mouth of C-band, second plays effect of phase compensation for the received signal of C-band tuner, suppresses phase mutual interference between two band signal.

The utility model has realized that KU wave band receiving efficiency improves about 10% owing to adopt four polarization dual output combined tuners, and C-band receives and also reached monomer whose C-band tuner level, in addition, also has small and exquisite simple, the easy advantage such as installation of external form.

Accompanying drawings embodiment.

Fig. 1, be combination four polarization dual output C, KU combined tuner overall schematic;

Fig. 2, be combination four polarization dual output C, KU combined tuner internal structure cut-away view;

Fig. 3, be combination four polarization dual output C, KU combined tuner structure schematic diagram.

From Fig. 1-3, learn, at first make shell with aluminum material, utilize C-band integral high frequency head waveguide 4, KU section offset-fed tuner feed 7 is put in the C-band waveguide 4, be fixed on C-band, waveguide internal upper part position by mould.KU wave band phase compensator 8 is installed on the KU wave band tuner waveguide 3, insert then in the KU wave band feed, again KU wave band high frequency tuner circuit part 9 and C-band high frequency tuner circuit part 10 are installed in the shell of combined tuner, earlier probe 5 separately, 6 insert the KU wave band, in the tuner waveguide, and then KU wave band high frequency tuner circuit part 9 and C-band high frequency tuner circuit part 10 usefulness screws be fixed on the shell, set up C-band tuner and two lead-out terminals 11 of KU wave band tuner, 12, during use, will make up four polarization output C, the KU combined tuner is installed on the C-band feed head and can uses.

Claims

1, a kind of combination four polarization dual output C, the KU combined tuner, comprise shell and C-band integral high frequency head waveguide (4), it is characterized in that KU wave band offset-fed tuner feed (7) is put into C-band waveguide (4), be fixed on C-band waveguide (4) internal upper part position, add a KU waveguide (3) for again KU tuner feed (7), KU wave band phase compensator is installed in inserts in the KU wave band feed (7) on the KU wave band tuner waveguide (3) then, KU wave band high frequency tuner circuit part (9) and C-band high frequency tuner circuit part (10) are installed in the shell of combined tuner, probe (5) separately, (6) insert in the KU wave band tuner waveguide (3) respectively and C-band tuner waveguide (4) in, and then KU wave band high frequency tuner circuit part (9) and C-band high frequency tuner circuit portion (10) be fixed on the shell with screw, set up two lead-out terminals of C-band tuner and KU wave band (11), (12).