JPH0441679U

JPH0441679U -

Info

Publication number: JPH0441679U
Application number: JP8366790U
Authority: JP
Priority date: 1990-08-08
Filing date: 1990-08-08
Publication date: 1992-04-08

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す図、第２図
〜第８図はこの他の実施例を示す図、第９図及び
第１０図は従来のモノパルスレーダ装置を示す図
、第１１図は従来のモノパルスレーダ装置の和及
び差信号線路の位相関係を示す図、第１２図はシ
フマンセクシヨン型移相器の周波数に対する位相
特性を示す図、第１３図は本考案による和及び差
信号線路の位相関係を示す図である。図において、１はアンテナ、２はモノパルスコ
ンパレータ、３はサーキユレータ、４はＳＰＳＴ
スイツチ、５は低雑音増幅器、６は送信機、７は
ダウンコンバータ、８は電力分配器、９は振幅検
波器、１０は位相検波器、１１は局部発信器、１
２はシフマンセクシヨン型移相器、１３はＳＰＤ
Ｔスイツチ、１４は位相調整線路である。なお、
各図中同一符号は同一または相当部分を示す。 FIG. 1 is a diagram showing one embodiment of this invention, FIGS. 2 to 8 are diagrams showing other embodiments, FIGS. 9 and 10 are diagrams showing a conventional monopulse radar device, and FIG. The figure shows the phase relationship of the sum and difference signal lines of a conventional monopulse radar device, Fig. 12 shows the phase characteristics of the Schiffman section phase shifter with respect to frequency, and Fig. 13 shows the sum and difference signal lines according to the present invention. FIG. 3 is a diagram showing a phase relationship of difference signal lines. In the figure, 1 is the antenna, 2 is the monopulse comparator, 3 is the circulator, and 4 is the SPST.
5 is a low noise amplifier, 6 is a transmitter, 7 is a down converter, 8 is a power divider, 9 is an amplitude detector, 10 is a phase detector, 11 is a local oscillator, 1
2 is a Schiffman section phase shifter, 13 is an SPD
T switch 14 is a phase adjustment line. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) An antenna, a monopulse comparator connected to the antenna, and a sum signal line of the monopulse comparator, a circulator for separating the transmitted signal and the received signal, and a transmitter that transmits via the circulator. A single-pole single-through switch (Single
Pole Single Through:SP
ST switch), a low-noise amplifier, a down converter to convert the received signal to an intermediate frequency, a power divider to distribute the output power of the down converter, and a detection unit to perform amplitude detection on a part of the power-divided signal. On the other hand, in the difference signal line of the monopulse comparator, a circulator similar to the above and an SPS
Two systems are provided, including a T switch, a low noise amplifier, a Schiffman section phase shifter, a down converter, and a phase detector that detects the phase of two signals, the output power of the down converter and the signal distributed by the power divider, A monopulse radar device comprising: a local oscillator for supplying local oscillation power to the down converter; and a power divider for dividing the power of the local oscillator into three parts and supplying the same to the down converter. (2) In a down converter used in a differential signal line having two systems of a monopulse radar device, a shiftman section type phase shift is provided between the local oscillator, a power divider connected to the local oscillator, and the down converter. 2. A monopulse radar device according to claim (1) of the utility model registration, characterized in that a device is connected to a monopulse radar device. (3) In a differential signal line having two systems of a monopulse radar device, a single-pole double-through switch is provided between the circulator and the low-noise amplifier of the differential signal line to pass the required received signal by time division instead of the SPST switch. (Sin
gle pole double through
h: SPDT switch), and a Schiffman section phase shifter is connected between the low-noise amplifier and the down converter. Device. (4) A claim for utility model registration characterized in that a differential signal line of a monopulse radar device is provided with a Schiffman section type phase shifter between a down converter and a power distribution register that distributes power from a local oscillator. Monopulse radar equipment described in scope item (3). (5) Request for registration of a utility model in a monopulse radar device characterized in that a Schiffman section phase shifter used in a difference signal line having two systems is provided between a low noise amplifier and a down converter in a sum signal line. A monopulse radar device according to scope (1). (6) A monopulse radar device, characterized in that the Schiffman section phase shifter used between the down converter of the difference signal line and the power divider is provided between the down converter of the sum signal line and the power divider. A monopulse radar device according to claim (2) of the utility model registration claim. (7) Claim No. 1 of the utility model registration, which is characterized in that a monopulse radar device is provided with a Schiffman section phase shifter used in a difference signal line between a low-noise amplifier and a down converter in a sum signal line. The monopulse radar device described in (3). (8) Claim No. 1 of the utility model registration, which is characterized in that a monopulse radar device is provided with a shifter section type phase shifter used in a difference signal line between a down converter of a sum signal line and a power divider. The monopulse radar device described in (4).