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PULSE SSPA

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Amplifier Design Request

S Band Pulse SSPA 2.9-3.1GHz 500W

Frequency Range: 2.7-2.9GHz
Pout: >500W
Modulation Type: Pulse
Working Voltage: 28VDC

Feature:

  • Over-high VSWR to avoid or reduce the damage from any mismatch
  • Over-high temperature protection, Shutdown more than 75℃, auto-restart less than 50℃

  

Applications:

 For Phased Array RADAR,  Electronic warfare, electronic countermeasure, SDR,

  

Description

Any malfunction or damage to the amplifier caused by improper operation that violates the following instructions will not be covered by the warranty.

• Please notice that the Pin (peak) is completely different from Pin (average). 200 µs, 20%, 6dBm Pin (peak) is actually -1dBm Pin (average).

• PA should operate on an appropriate radiator, and it's recommended to paste the silicon grease in between. Otherwise, PA would be shut down by high temperatures;

• PA’s output port cannot open or short;

• PA’s output port should connect to a proper load (Load: Either an attenuator connects with a power meter or an antenna. The VSWR of the load should be less than 1.3);

• The Pin range and polarity of the power supply must be correct;

• Verify and ensure the input  signal with instruments that comply with the following requirements:

  Frequency: 2.9-3.2GHz

  Pulse duty: < 20%e

  Pulse width: <200µs

  Pin: 3-6dBm(peak)

Pout probably is lower the rated power if the Pin is lower than 3dBm; PA probably is damaged if the Pin is higher than 15dBm;

• Ensure that the power supply voltage meets 48VDC ± 1VDC;

• Ensure that all of the above requirements are met. Turn on the power switch then the amplifier can work properly.

   

Specifications:

No.

Item

Specification

1

Frequency

 2.7 -2.9GHz

 2.9-3.1GHz

2.7-3.1GHz

3.1-3.4GHz

 3.1-3.5GHz

customized

2

Pout (Pulse ,Peak)

 2.7 -2.9 GHz

57dBm±1dB    (500W)

2.9-3.1GHz

57dBm±1dB    (500W)

2.7-3.1GHz

56dBm±1dB    (400W)

3.1-3.4GHz

56dBm±1dB    (400W)

3.1-3.5GHz

55dBm±1dB    (300W)

3

Pin

3-6dBm  (Pulse, Peak)

4

Max Pin ( undamaged level)

10dBm (Pulse, Peak)

5

Pulse width

<200 us

6

Pulse Duty cycle

<20%

7

Pulse Rise/Fall time

<100 ns

8

RF IN/OUT VSWR

<2

9

Harmonic suppression

>50dBc

10

Spurious emission

>50dBc

11

Working temperature

-25 to 65

12

RF IN Connector

SMA-Female

13

RF OUT Connector

N-Female

14

Ic (Quiescent)

0.5-0.8A

15

Ic (Working Average)

<4-5A

16

Supply voltage

48VDC±1VDC

17

Dimension

220*150*50mm

18

Protection

* Shutdown over High-VSWR and Auto-restart  

Shutdown over High-Temperature and Auto-restart  

 

  

I/O Port (DB15 Female)

*PIN6: Pulse Switch (+5V: ON;  Hang in air or 0V : OFF)

*PIN9: +5V (out)

PIN6 and PIN9 is connected (default)

PIN7: Pr (Reversed RF Power )

PIN10Pf (Forward RF Power )

PIN11:  Enable PA (5V: PA OFF;  Hang in air or grounding: PA ON)

PIN12TA (Temperature alarm,  Alarm: 5V;  Normal: 0V)

*PIN13:   VA (VSWR Alarm,  Alarm: 5V;  Normal: 0V)

PIN14Tc (Temperature: 0.01V/1,  0.75V @25 )

PIN15:   GND

PIN1-PIN5, PIN8: NC.

图片8.png

 

Remarks

1PA  should be fixed on flat Radiator with screws (thermal grease)   .

2Input level of PA should be  2.9-3.1GHz,  Pulse duty <20%,  Pulse width <200us,  3-6dBm;  otherwise PA maybe broken.

3PA should  connected to load before Power on PA ; otherwise  PA maybe broken

4. Instructions

Any malfunction or damage to the amplifier caused by improper operation that violates the following instructions will not be covered by the warranty.

•    Please notice that the Pin (peak) is completely different from Pin (average). 200 µs, 20%, 6dBm Pin (peak) is actually -1dBm Pin (average).

•    PA should operate on an appropriate radiator, and it's recommended to paste the silicon grease in between. Otherwise, PA would be shut down by high temperatures;

    PA’s output port cannot open or short;

•    PA’s output port should connect to a proper load (Load: Either an attenuator connects with a power meter or an antenna. The VSWR of the load should be less than 1.3);

    The Pin range and polarity of the power supply must be correct;

•    Verify and ensure the input  signal with instruments that comply with the following requirements:

  Frequency: 2.9-3.2GHz

  Pulse duty: < 20%e

  Pulse width: <200µs

  Pin: 3-6dBm(peak)

•    Pout probably is lower the rated power if the Pin is lower than 3dBm; PA probably is damaged if the Pin is higher than 15dBm;

    Ensure that the power supply voltage meets 48VDC ± 1VDC;

•    Ensure that all of the above requirements are met. Turn on the power switch then the amplifier can work properly.

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