Vidyut Yantra Udyog
Gurudwara Road, Modinagar, Uttar Pradesh
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Waveguide Filters

Offering you a complete choice of products which include waveguide filters, circular to rectangular waveguide transitions, waveguide taper transitions, waveguide switch, spdt, rotary, waveguide antenna and e-plane / h-plane sectoral horn.

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These filters can be fabricated as per customer's requirements. The following specifications should be mentioned for fabrication:-

Low-Pass, Band-Pass or High-Pass

  • Band-width (frequency)
  • No. of n-section & size
  • Max. Insertion loss & min. Isolation etc.
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Model 9051 transitions are meant for connecting the circular waveguide to the corresponding rectangular waveguide or vice versa. These are so designed to give lowest VSWR through out the frequency band

These  are  fabricated  by  precise  and  well-controlled electroforming process

Please mention the size & drawing of the flanges particularly on the round waveguide side.

Model NO.Frequency Range (GHz)Max. VSWRWaveguide Type (WR-)Flanges Type (UG-/U)
S-90512.60-3.951.1228453
C-90513.95-5.851.12187149A
J-90515.85-8.201.12137344
X-90518.20-12.41.129039
Ku-905112.4-18.01.1562419
K-905118.0-26.51.1542595
R-905126.5-40.01.1528599
V-905150.0-75.01.215385
W-905175.0-110.01.210387

 

Additional Information:
  • Item Code: X-9051
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Model 9071 Waveguide Taper Transition provides the interconnection between different adjoining waveguide system or components. These transitions are designed to have low VSWR (Max. 1.10) throughout the frequency band. Flanges for the corresponding waveguide are provided on both ends. Some of the transitions as mentioned below, are stocked for fast delivery.

1WR-510 to WR-4308WR-137 to WR-112
2WR-430 to WR-3409WR-112 to WR- 90
3WR-340 to WR-28410WR- 90 to WR - 75
4WR-284 to WR-22911WR- 75 to WR - 62
5WR-229 to WR-18712WR- 62 to WR - 51
6WR-187 to WR-15913WR- 51 to WR - 42
7WR-159 to WR-13714WR- 42 to WR - 28 etc.
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  • Mode 8051 Waveguide Switches are 3 Port mechanical devices. They transfer power form port-1 to either Port-2 or Port-3, These are manually operated by a knob.
  • These have rugged construction, with H-Plane bend made to rotate in the stationary outer portion of these switches.
Model NoX-8051
Frequency Range (Ghz)8.2-12.4
Waveguide Type (WR-)
90
Flange Type (UG-/U)39
Max. VSWR1.1
Max. Insertion Loss (db)
0.1
Min. Isolation (db)
40
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Model 5041 Pyramidal Waveguide Horn consists of a Section of waveguide joined to a pyramidal section fabricated from brass sheet. This pyramidal section shapes the energy to concentrate in a specified beam.

Waveguide Horns are used as feed horns or as radiator for reflector and lenses and also as a Pickup antenna for receiving microwave power.

Waveguide Horns can also be fabricated in Aluminium material.

Waveguide Horns with lower or higher gains e.g. 10, 20 db are also available 

Model NO.Frequency Range (GHz)Gain (db)Max VSWRWaveguide Type (WR-)Flange Type (UG-/U)
L-50411.70-2.6017±11.2430CPR-430
S-50412.60-3.9517±11.228453
C-50413.95-5.8517±11.2187149A
J-50415.85-8.2017±11.2137344
X-50418.20-12.417±11.29039
Ku-504112.4-18.020±21.2562419
K-504118.0-26.520±21.2542595
R-504126.5-40.020±21.2528599
V-504150.0-75.020±21.2515385
W-504175.0-110.020±21.2510387

 


Additional Information:
  • Item Code: S-5041
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Additional Information:
  • Item Code: X-5043


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  • Model 5043 and 5045 are E-Plane and H-Plane Sectoral Horns to provide the gain (15db) in E-Plane and H-Plane directions respectively. 
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  • Model 5061 Pick-up Horn is similar to Pyramidal Horn except that it has square aperture. These are use as feed for Dishes etc. 

Additional Information:
  • Item Code: X-5061
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  • Model 5101 is a Conical Antenna with approx. gain of 15 db. It has round wave guide on one end and conical body with round aperture on the other end.
  • A Circular to Rectangular Wave guide Transition (Model 9051) is required to connect this antenna with rectangular wave guide test-systems.
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  • Model : 5161 and 5163 are the slotted waveguides with slots in broad wall and narrow wall of the waveguides respectively. These slotted waveguides are flanged on both ends.
  • Dielectric Antenna or any other antennae can be fabricated.
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  • Model 4151A, B & C Coaxial Detector Mounts are coaxial untunable type fixed Detector Mounts for use with coaxial outputs. These are low SWR devices having 
  • flat frequency response and high sensitivity.
  • These consists of N (M) connector on input side and BNC (F) connector on Output side and a crystal diode with matching disc is mounted inside.

Additional Information:
  • Item Code: X-4151B
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1Klystron Power SupplyKP-1511No.
2Klystron MountX-20511
3Klystron Tube2K25orK271
4Frequency Meter, DirectX-41551
5Reading Type   
6Variable AttenuatorX-50201
7Detector MountX-40511
8VSWR Meter, Solid StateVS-4111
9T-CirculatorX-60211
10Coaxial to W/G AdaptorX-70612
11Coaxial Cable N to NC-1051
12Waveguide TwistX-70511
13Precision Movable ShortX-41811
14Waveguide StandX-50354
15Waveguide Bend, 90 degreeX-70712
16Cooling Fan 1
17Radiation - Pattern Turn TableX-8511
18Tripod Stand for AntennaX-51451
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Compact Microwave Labkit VX-2001 consists of the following Components & Instruments.

1Klystron Power SupplyKP-1511No.
2Klystron MountX-20511"
3Klystron Tube2K25 or K271"
4IsolatorX-602I1"
5Frequency Meter,
Direct Reading TypeX-41551"
6Variable AttenuatorX-50201"
7Slotted SectionX-60511"
8Tunable ProbeX-60551"
9Detector MountX-40511"
10.Movable ShortX-40811"
11Matched TerminationX-40001"
12VSWR Meter, Solid StateVS-4111
13Waveguide StandsX-50354"
14Slide Screw TunerX-40411"
15Cooling Fan1"
16BNC to BNC CableC-1011"
17BNC to Open CableC-1021"
18Fixed ShortUG-39/U1
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LIST OF COMPONENTS:

1Klystron Power SupplyKP-15101 No.
2Klystron MountX-205101 No.
3Klystron Tube2K25 or K2701 No.
4IsolatorX-602101 No.
5Frequency Meter,
Direct Reading Type
X-415501 No.
6Variable AttenuatorX-502001 No.
7
Microprocessor based
Turn Table with Computer
Interface for Polar pattern
measurement
X-96101 No.
8Pyramidal Horn AntennaX-504102 No.
9E-Plane BendX-707102 No.
10Detector MountX-405101 No.
11VSWR Meter, Solid StateVS-41101 No.
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Model X-110 Gunn Power Supply comprises of regulated D.C. power supply and a square wave generator, designed to operate Gunn-Oscillator model 2152 etc. and Pin-Modulator model 451 simultaneously.
The D.C. Voltage is variable from 0 to 12.0 volts. The front-panel digital meter monitors the Gunn voltage and the current drawn by the Gunn-diode.
The square waves of generators is variable from 0 to 10 Volts in amplitude and from 850 to 1150 Hz in frequency.
The power supply has been so designed to protect Gunn diode from reverse voltage application, over transient and low frequency oscillations by the negative resistance of the Gunn-diode.
Model No.X-110
Gunn Bias Voltage0 to 12 V
Current0 to 1.0 A (Max.)
Regulation0.2% for ± 10% mains variation
Ripple2 mv (rms)
Modulation Frequency850 to 1150 Hz, Square wave
Mod. Amplitude0 to 10.0 V (peak to peak)
Output ConnectorsBNC (F) for Gunn Bias
UHF (F) for Pin-mod.
Mains Supply230 V, 50 Hz, 25 watts aprox,
Standard Accessories(i) Mains Cable ( 01 No.)
(ii)Coax. Cable BNC to BNC (01 No.)
(iii) Coax. Cable BNC to UHF (01 No.)
(iv) Spare Fuses (02 Nos.)
(v)Instruction Manual (01 No.)
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odel X-111 Gunn Power Supply has been designed to operate high frequency Gunn oscillators and where PIN Modulators are not available, In this supply variable frequency square Wave modulation is provided on the bias supply itself.

Front panel digital meter reads the Gunn bias voltage and the current drawn by the gunn-diode through a switch.

This consists of a regulated D.C. power supply 2.0 to 12.0 V variable and a square wave generator of variable frequency 850 to 1150 Hz.

Model No.X-111
Gunn Bias Voltage1 to 12 V
Current0 to 1.0 A
Regulation0.2% for ± 10 mains variation
Modulation Selector SwitchCW & INT.
Modulation Frequency850 to 1150 Hz square-wave
Output ConnectorBNC (F) for Gunn Bias
Digital Panel MeterRead Gunn bias voltage & current drawn
Mains230 V, 50 Hz 35 Watts
Std. Accessoriesi) Mains Cable (1 No.)
ii) Coax. Cable BNC to BNC (1 No.)
iii) Spare Fuse (2 Nos.)
iv) Instruction Manual (1 No.)
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1Input Voltage230VAC, ±10%, 50 Hz
2Beam SupplyVoltage : 240- 400 Vdc, Variable Current : 50 mA
Regulation : 0.5% for 10% I/P variation Ripple: <5mv RMS
10-270 Vdc, Variable Regulation : 0.25% for 10% I/P variation
3Repeller Supply
4Filament Supply
5Over-load Trip Current65 mA
6Modulation
Frequency Range
Amplitude
External
AM (Square) FM (Saw -Tooth)
500-2500 Hz 150-300 Hz
0-110 V 0-65 V
Through external Modulating Signal
7DisplayDigital display for (1) Beam voltage, (2) Beam Current,
(3) Repeller Voltage
8Standby ModeOnly Heater Supply ON
9Connectors(1) 8-Pin Octal Socket for Klystron, (2) BNC (F) for external Modulation
(3) 2-Pin Socket for Cooling Fan, (4) BNC (F) for Saw-tooth Monitoring
10Mechanical Dimensions26.5(L) X 13(H) X 20(D) Cms Weight - 5.6 kg
11Standard Accessories

ii) Coaxial Cable BNC - BNC (1 No.)

iii) Spare Fuses ( 2 Nos.)

iv) Instruction Manual (1 No.)

Additional Information:
  • Item Code: KP-151
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5th Order Low Impedance-high Impedance Low Pass Filter
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7th Order Low Impedance-high Impedance Low Pass Filter
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  • Model AT-211B is an automatic self balancing Power Meter. It measures RF Power with the help of temperature compensated Thermistor Mount from 10µW to 10mW fullscale with 1% accuracy from 10 Mhz to 40 Ghz (depend upon type of Thermister Mount)
  • With calibration factor control switch, AT-211B normilises the Power Meter reading to compensate the efficiency of used Thermistor Mount.
  • AT-211B has provision for substitution measurements and Power Meter calibration. Output is provided for recorder or Digital Voltmeter readout.

Additional Information:
  • Item Code: AT-211B
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SPECIFICATION

Amplifier typeHigh gain tuned at one frequency.
Frequency1000 Hz ± 2%.
Sensitivity0.1 microvolt at 200 ohms for full scale.
Band-width25-30 Hz.
Noise-levelLess than 0.02 microvolt.
Range70 db min. in 10 db steps.
Accuracy± 0.15 db on one range.
Meter-Linearity1% of full scale.
Scale-SelectorNormal, Expand.
Gain-Control'Coarse' & 'Fine'.
InputBNC (F), 200 ohms impedance
Mains Power230 V, 50 Hz
Standard Accessoriesi) Instruction Manual (1 No.)
ii) Mains Cord (1 No.)
iii) Coax. cable BNC to BNC (1 No.)
iii) Coax. cable BNC to BNC (1 No.)
iv) Spare Fuse (2 Nos.)
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  • Model 5145 Tripod Stands are made toV hold the antenna. 
  • This is useful for plotting the polar pattern of antenna.
  • It consists of a triangular steel base with leveling screws, on which three legs are 0 connected to a block. A 0-360 round scale is provided to read the rotation of antenna. The height of antenna is adjustable from 110 to 150 cms.
  • These are available for S, C, J, X, Ku, K and R-bands. 

Additional Information:
  • Item Code: X-5145
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  • Model 5145 Tripod Stands are made toV hold the antenna. 
  • This is useful for plotting the polar pattern of antenna. 
  • It consists of a triangular steel base with leveling screws, on which three legs are 0 connected to a block. A 0-360 round scale is provided to read the rotation of antenna. The height of antenna is adjustable from 110 to 150 cms.
  • These are available for S, C, J, X, Ku, K and R-bands. 
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50-ohm Microstrip Line
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Vidyut Yantra Udyog

Abhishek Jain (Technical Head)
Gali No. 2, Gurudwara Road
Modinagar - 201204
Uttar Pradesh, India
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