DE1466025A1 - Radiation source for monopulse devices - Google Patents

Description

CSF-OOMPAGiriS OBIBRALE DS TELBSRAPHIE SAHS 79t Boulevard Haussmsnn, Paris / Franceh

Radiation source for Konopuls devices

As is well known, it is a matter of monopulse systems (sum-difference systems) Active systems or radar systems, which reflect the target transmitted by the system and Tom Receive energy, or passive systems that use the received emitted energy, with an indication of the storage, in svei directions, generally the Elevation angle and the side angle, with the help of the gleiohen received pulse. The antenna and the Circuits coupled therewith are designed so that every received pulse at an "elevation angle output *

and two differential signals at a "azimuth output" causes which in relative values as a function of

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909822/0437

rom level of the received signal di · height nwlnk »libl« g · " ^{! ieS} and the lateral angle offset dee Jßiels in relation to aai dl · ^{: i <} * *« ** ▼ * express antenna aohee. Di · absolute η racks , the --- ^

to the level of the received signal regardless of the load aneohliessend obtained by the fact that each of the differential signals old a * obsession signal is Tergliohen, dall In is generally obtained at a further output, "le« ugseasgang * is called ·

So up to 3ehaltang the monopulse antenna contains one "Reference output channel", a "Höhenwinkelauag * nga channel" and a "side angle exit channel", and i »VaIl one Activate systems, i.e. a radar system **, an input channel, that in most cases old of the Besags outlet canal »Usa« «is omitted, with these tereohiedenden channels on The antenna has more or less co-formed circuits «Usataaen-led are · - .- ■

Outside of this circuit "iad the Besogsaasgang as well as the Höhenwi nice lauegang u * fl Hm rare angle output" 1t connected to the TergleieheaRordkiugen for the Beaege signals and the differential signals. I «» on the eleventh active system, the input channel is connected to the transmitter. If the Ilttgat ^ ekanal "it de" Beeng · - kanal "ueaaaenfels, a Sende-E _a pf * ngs-Weieae on the one hand swisehea this" BesagsaaagaBg and on the other hand wiaohea the transmitter "ad die Tergleioheanordsaag""inserted

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909822/0437

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The invention enables a considerable simplification of the Highest frequency circuits of the system aod «la · satisfactory Solving the problem of making the phase guide at the broadcast.

The arrangement of the invention characterizes an essential element duroh two right waveguides, one broadside

Geseinssji have and have such dimensions that see the waveform η TE _Q1 and TKq ₂ can propagate in it at the same time under Aueechloes tob waveforms of a higher order.

The sur diversion of the Höhenwinkelkanal, dee Seiteawlnkelkanele and the Sueeenkanale -provided facilities dl · two outputs of a magic T and one in the axis the probe placed in the wet vend.

The invention is illustrated below by way of example with reference to the drawing described. Barin seigent

fig. 1 «A perepectual view of an example of a carrion the Irfindaag,

»3« 4 · «4b and 5« representations of the various forms of expansion a with the arrangement tob

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U66025

5b «ine vertical 3ohnittansioht the arrangement τοη flg.1 other

Pig.6 diagrams ear Explanation of the mode of operation.

71g.1 shows a waveguide 1, at the mouth of which a metallic one

Transverse wall 8 is arranged parallel to the broad sides Waveguide over a part of Miner's length in two sections

and 15 shares. This partition is set in a thicker one

Part 9 continues, which has a gradual transition 10 to defl "

thin section is attached. The mouths of the two

Semi-waveguides 14 and 15 sled each kit atstrahlungaanordnung ^

coupled for example horn antenna η.

At the. Sending is the sender to the TL branch of a magic T16 coupled »this leg iu»> Waveguide 1 bent over

and are separated from one another by a partition 17. the

Blgenaohaften this partition and the symmetry of the system

cause that «the wave το» transmitter cur probe in the *

Waveform TEg ₁ atta, which is shown in Fig.2 The feet are at the mouth of the waveguides 14 and 15 in

Phase.

The following applies to the reception »

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90982 2/0 437

a) If the Wslls in the direction of the axis of the systems is received, only the waveform TS is excited at the muzzle. At the entrance of the magical T, the wave splits In the catfish shown in Pig. 3 “She steps across the canal off (since the two waves at the entrance of the magical T are in phase, nothing passes through the channels 6 S and A G from, τοη which the one through branch 16 of the magical T and the other are formed by a probe 18 "

b) If the wave comes from a direction with the elevation angle 0, while the side angle τοη 0 is Tersohieden (so that this direction lies in the Ibene of the wall 8) the two waveguides 14 and 15 Ib of the same catfish are excited because they are symmetrical to each other with respect to the plane in which the direction of the wave is contained.

The two waveforms IB ₀₁ and 7S ₀₂ exist more necessary. wise together, and their formation is the same in the plane of the two mouths.

The components of the waveform fB _Qi correspond to the representation τοη flg.4a. The components in the waveform! S ₀₂ correspond to the representation τοη »ig.4b. The wave form S1 ₀₂ i «t necessarily Torhanden, since the plane of the mouth is not parallel to the wave plane, so that necessarily area ·

the

909822/0437 ^ ₀ OR.G.NAL

the mouth plane and in which ΡηβββητοΓ-vllung or Phaeennweligung admits. Α «Receipt of the nagieohen T receives «on in the silk no the Training τοπ f ig «4e.

Both waves combine just as much amplitude and so on

Naeh phase below the A _U ILLUSTRATION tob thirty, 4d. The two

Waves are in opposition. You call an announcement signal v « Kanal £ aai a dif fer es ignal la Kanal ό »(sideline · 1-

channel) herror * ™

o) Rlohtuttg of the wave alt the side angle 0 and an «von O Tereehiedenen Höbemrlnkel (i.e. the direction welohe in the common syssetrie level of the two Waveguide 14 and 15 is located).

In your case, the incoming wave excites them Riohtong in the vertical statetrical level of the two Waveguides contain lvt _t ausvohlievvlioh vwei waves (

in the Wvllenfom Tl ₀₁ , which have reraohledene Aaplltudvn.

Sivser Hiiohfreqaenmeuetand extracts the linear ZueaMenfagtt * g by vwei

BATH ORIGINAL

1 «Ida fields in the two waveguides are identical and in phase and eie have a first amplitude *

2. The fields in the two waveguides are in phase and out of phase, and they have a wide amplitude.

For state 2 is shown in Fig.5a and Fig.5b,

where one sees the end of the arrangement facing the mouth. ■ * He rotation of the Peldrectors shown in Fig. 5b

Right on the walls enables the excitation of the probe 19 and the corresponding coaxial line 18 the output signal via the channel Λ p.

State 1 results in an output signal via the Sumaenfcanal £

d) Generally if the echo signal is excited from any direction in the two waveguides 14 and 15 on the same side * waves of the form T1 _Q1 and the form ^ S ₀ * The high frequency level corresponds to the linear combination of swel states, tone which you have a height "angle of deposit Signalfuelle and the other corresponds to a side angular deviation of ^ ignalquelle, alao animal eoheeatisoh in states shown strength * 6 wherein the T _o r?" calibrate 4- and -

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BATH

Sighting the fields · in the left section ani 1 $ right Section of the waveguides 13 and 14 beeeiohnen.

8a et and I and II correspond to the waveform TEq ₁ and the states III and IT correspond to the waveform

State I becomes la sum channel, state II la Höhenvinkel canal and condition III in the lateral angled canal

received f

The state IT corresponds to the discharge of the energy over the antenna.

Patent claims

9 0 9 8 2 2 / α43 1

Claims (2)

* '"*' ■ U66025 Pat · η t · a β ρ r U ο h · 1. Circuit for «in · monopulse antenna with three output channels, next to an elevation exit, an entrance exit and a 3eitenwink «lauagang, bit« white rectangular hollow parents, , which have a wall of a width in common, and whose dimensions a ο are chosen because the energy can spread in the two wave foraes SiS ₀₁ and 5Sq ₂ ^{without the} exclusion of all other waveforms, characterized by the fact that the attraction output, the Höhenwinkelauagang and the Seitenwinkelauagang the two exits a · «agiachen T, deaaen both entrance aaweige bent and a common wall in the like ine aeen syouaetrieplane of the two waveguides, to which aie angeaohloasen aind, bsw. «In · are arranged in the axis of the common wall and attached to a coaxial line. 2. Circuit according to Anapruoh 1, characterized in that daaa which has a wall geaeinaaae the two waveguides, whose thickness in the direction of expansion is because of the sound near the common estuary to wäohat, and daea on the opposite band · this wall facilities Gates are the polarization of the arriving Because · turn over 90 ° and this into the Aohee of the two waveguides to lead. 909822/0437 BATH ORIGINAL U66025 J. Keeping according to claim 2, characterized in that let the probe "n" be connected in coaxial cable, housed inside the pleasant wall is. BATH ORIGINAL - 4 Z blank page