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  5. 20MHz to 520MHz High Power LDMOS Broadband Amplifier 47 dB Gain 50 Watt Past
20MHz to 520MHz High Power LDMOS Broadband Amplifier 47 dB Gain 50 Watt Past
VPAM-20-520-50

20MHz to 520MHz High Power LDMOS Broadband Amplifier 47 dB Gain 50 Watt Past

A high-performance, ruggedized RF power amplifier module designed for demanding communications, radar, and EW applications. Delivers exceptional linearity and efficiency across a wide frequency range.

  • Start : 20MHz
  • Stop : 520MHz
  • Pout : 50Watts
  • Gain : 47dB
  • Voltage : 28V
  • Size : 150*90*20mm
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Product Overview

The VPAM-20-520-50 is a high-performance RF power amplifier module operating from 20 MHz to 520 MHz, delivering 50 Watts of typical saturated output power. Engineered with LDMOS and chip-and-wire technology, this amplifier offers exceptional power-to-volume ratio, wide dynamic range, and reliable performance for demanding RF applications.

50W Output Power
Saturated RF power across full band
20-520MHz Range
Ultra-broadband operation
47dB Gain
High amplification factor
Built-in Protection
Thermal & over-current safeguards

Broadband Performance

Instantaneous operation across the entire 20-520MHz frequency range without tuning or band switching.

High Power Density

Compact 150x90x25mm design delivers 50W output power with excellent thermal management.

Robust Protection

Built-in safeguards against over-temperature, over-current, and load mismatch conditions.

Easy Integration

Standard SMA connectors and D-Sub power interface for simple system integration.

Electrical Specifications

(@ +28.0VDC, 25°C, 50Ω System)

ParameterSymbolMinTypMaxUnits
Operating FrequencyBW20 520MHz
RF Output PowerPout50  Watt
RF Output Power @1dBP1dB 30 Watt
Power GainG 47 dB
Small Gain FlatnessΔG ±1.5 dB
Input Return LossS11 -10 dB
Harmonics @30WH -10 dBc
Spurious SignalsSpur -60 dBc
In/Output Impedance  50 Ω
Operating VoltageVcc242832Volt
DC Current @50WIcc 7 Amp

Absolute Maximum Ratings

ParameterRating
Input RF drive level without damage+10 dBm Maximum
Load VSWR @ Pout =25W∞ @ all load phase & amplitude for 1 minute; 3:1 continuous
Thermal Overload85°C ±5°C shutdown

Environmental Specifications

ParameterMinTypMaxUnitsNotes
Operating Temperature-20 60°C 
Non-operating Temperature-25 65°CStorage
Relative Humidity (non-condensing)  95% 

Mechanical Specifications

ParameterValueUnitsNotes
Dimensions150x90x25 [5.9x3.5x1.0]mm [inch]Maximum
Weight1.2 [2.2]kg [lbs]Maximum
RF Connectors InputSMA, Female  
RF Connectors OutputSMA, Female  
DC Interface ConnectorD-Sub 9-Pin, Male  

DC Interface Connector Pinout

D-Sub 9-Pin, Male

Pin #DescriptionSpecifications
1ENABLEAmplifier Enable: TTL Logic High (3.3V) (Internally Pulled-Low)
2TEMP SENSEAnalog voltage relative to Module's Temperature @ 10 mV/°C
3CURRENT SENSEAnalog voltage relative to Icc @ 100mV per Ampere
4,5,9VDD28VDC
6,7,8GNDGround

Applications

The VPAM-20-520-50 is designed for demanding RF applications requiring high power and broadband performance:

Electronic Warfare (EW) Systems
Signal Jamming
EMC/EMI Testing
RF Test & Measurement
Broadband Communication
Research & Development
Military & Defense
Aerospace Systems

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