VBA100 Series — 10 kHz to 100 MHz Class-A RF Power Amplifiers

Gallery VBA100 Series — 10 kHz to 100 MHz Class-A RF Power Amplifiers

VBA100 Series — 10 kHz to 100 MHz Class-A RF Power Amplifiers

Class-A operation for ultra-low distortion and predictable linear performance
100% mismatch tolerance with no fold-back protection required
Push-pull MOSFET output stages for harmonic suppression and ruggedness
Wide instantaneous bandwidth from 10 kHz to 100 MHz
High-efficiency proprietary combiners for scalable power levels
Designed for EMC test environments, chambers, and transducer drive
Integrated digital interfaces (select models)

PARTNER:

VECTAWAVE TECHNOLOGY LTD.

MARKETS:

CATEGORIES:

TEST STANDARDS:

Select Options/Sizes:

VBA100-30, 10k-100M, 30W Data Sheet

VBA100-110, 10k-100M, 110W Data Sheet

VBA100-200, 10k-100M, 200W Data Sheet

VBA100-900, 10k-100M, 900W Data Sheet

VBA100-1500, 10k-100M, 1500W Data Sheet

VBA100-3000, 10k-100M, 3000W Data Sheet

SPECIFICATIONS

VBA 100 Series — 10 kHz to 100 MHz Class-A RF Power Amplifiers

Broadband, mismatch-tolerant RF power for EMC immunity and transducer drive
The VBA 100 Series covers 10 kHz–100 MHz with true Class-A linearity and push-pull MOSFET output stages. The result is low distortion, high reliability, and unconditional tolerance of severe load mismatch—ideal for Bulk Current Injection (BCI), IEC 61000-4-6 conducted immunity, and demanding transducer/fixture drive.

Key Technical Advantages

Class-A architecture for lowest distortion in immunity testing and stable operation into difficult loads; no fold-back needed during high reflection, ensuring full output even with open/short conditions.
Push-pull MOSFET output topology suppresses even-order harmonics for cleaner spectra during test.
Wideband 10 kHz–100 MHz coverage across the series for conducted RF, BCI, TEM/stripline, and small fixture/antenna drive.
Unconditional stability & extreme VSWR tolerance (continuing at full power into open/short); suitable for varying BCI clamp impedances.
Integrated digital interfaces (select models), including USB/GPIB for control/monitoring and interlocks.

Models & Core Specifications

Specification	VBA100-30	VBA100-110	VBA100-200	VBA100-900	VBA100-1500A	VBA100-3000A
Picture
Typ. Performance Curve
Frequency Range	10 kHz–100 MHz	10 kHz–100 MHz	10 kHz–100 MHz	10 kHz–100 MHz	10 kHz–100 MHz	10 kHz–100 MHz
Type	Class-A; rugged push-pull MOSFET	Class-A; rugged push-pull MOSFET	Class-A; rugged push-pull MOSFET	Class-A; rugged push-pull MOSFET	Class-A; rugged push-pull MOSFET	Class-A; rugged push-pull MOSFET
Output VSWR Tolerance	∞:1, 100 % mismatch tolerant	∞:1, 100 % mismatch tolerant	∞:1, 100 % mismatch tolerant	∞:1, 100 % mismatch tolerant	∞:1, 100 % mismatch tolerant	∞:1, 100 % mismatch tolerant
Rated / Typical Power	CW ≥30W (>40W typ.), P1dB ≥25W (>35W typ.)	CW ≥110W (>145W typ.), P1dB ≥90W (>100W typ.)	CW ≥200W (>250W typ.), P1dB ≥150W (>180W typ.)	CW ≥900W (>1000W typ.), P1dB ≥700W (>800W typ.)	CW ≥1500W (10kHz-80MHz), ≥1150W (80-100MHz), P1dB ≥1100W (10kHz-80MHz), ≥850W (80-100MHz)	CW ≥3000W P1dB ≥2300W
Gain (min)	46 dB	51 dB	51 dB	63 dB	63 dB	64 dB
Gain Flatness	±2 dB	±2 dB	±2 dB	±2 dB	±2 dB	±3 dB
TOI (typ)	54 dBm	61 dBm	61 dBm	67 dBm	69 dBm	70 dBm
Harmonics @ Linear Power	< –20 dBc	< –20 dBc	< –20 dBc	< –20 dBc	< –20 dBc	< –20 dBc
RF Input / Output Connectors	Type N (f)	Type N (f)	Type N (f)	Type N (f)	Input type N (f), output 7/16 (f)	Input type N (f), output 7/16 (f)
Input Power (Mains)	85-264V ac 47-63Hz, <120VA IEC320	88-230V ac 45-63Hz, <500VA IEC320	100-240V ac 45-63Hz, <1kVA IEC320	184-264V ac 47-63Hz, <3kVA IEC320	3 phase 200-240V or 350-415V ac 47-63Hz, <6kVA IEC60309 plug	3 phase 200-240V or 350-415V ac 47-63Hz, <11kVA IEC60309 plug
Size & Weight	19-inch, 3U Case, 400mm Deep, 12kg	19-inch, 4U Case, 500mm Deep, 20kg	19-inch, 4U Case, 500mm Deep, 18kg	19-inch, 5U Case, 550mm Deep, 33kg	19-inch, 16U Rack, 800mm Deep, 150kg	19-inch, 25U Rack, 800mm Deep, 291kg
Interface	none, Opt. USB/GPIB Interface	none, Opt. USB/GPIB Interface	none, Opt. USB/GPIB Interface	USB/GPIB control; front panel display.	USB/GPIB control; front panel display.	USB/GPIB control; front panel display.
Notes	Front or Rear connectors	Front or Rear connectors	Front or Rear connectors	Rear connectors	Rear connectors	Rear connectors

Common characteristics (series): Class-A operation, rugged push-pull MOSFET output stages, mismatch tolerance for EMC, broadband instantaneous bandwidth.

EMC Applications & Standards Coverage

Conducted RF Immunity (Coupling/Decoupling Networks): IEC/EN 61000-4-6.
Automotive BCI/RI (clamp drive and forward-power control): ISO 11452-4, SAE J1113-4.
Military Conducted Susceptibility: MIL-STD-461 CS114 BCI
Avoionics Conducted Susceptibility: RTCA DO-160 Section 20 BCI testing
Fixture/Transducer Drive: TEM/stripline fixtures, small RF antennas, current clamps, and injection probes across 10 kHz–400 MHz.

Control, Monitoring & Protection (Model-Dependent)

Local front-panel metering and interlocks; USB/GPIB remote control/monitoring on higher-power units (e.g., VBA400-260).
Designed for continuous duty in varying matches without fold-back, maintaining linear performance for repeatable immunity levels.

Why Absolute EMC

Absolute EMC provides application-specific system design (BCI loops, clamps, CDN selection, power meters/couplers, LISNs), installation, and correlation guidance to IEC, ISO, SAE, DO-160, and MIL standards—so your amplifier integrates correctly with sensors, control, and calibration chains from day one.

What to Specify (Selection Guide)

Required test method & level (e.g., IEC 61000-4-6 level X, ISO 11452-4 forward power for clamp Y).
Fixture/transducer type and insertion loss.
Required linear output (P1dB) at the highest frequency of interest.
Available mains power and control interface needs (USB/GPIB).
Space/rack constraints and RF connectorization.

Typical System Block

Signal source / RF generator → leveling & power meter/coupler → VBA 100 amplifier → CDN / BCI clamp/transducer → EUT, with reverse-power/VSWR monitoring and interlocks routed to the amplifier (∞:1 VSWR tolerance and unconditional stability on models like VBA100-200 simplify integration).

Frequently Asked Questions

Q1. Will the amplifier survive a severe mismatch from my clamp or CDN?
Yes. The series is designed for EMC use with 100% mismatch tolerance, and models like the VBA100-3000 explicitly state that they operate at full power even with open/short circuits.

Q2. Do I size by rated (P3dB) or linear (P1dB) power?
For immunity targets, size to P1dB at the top frequency to preserve linearity margin; see model-specific P1dB

Q3. Can I remote-control the amplifier?
Yes—higher-power models provide USB/GPIB for enabling, metering, health, and interlock management.

Ordering Information

Models: VBA100-30, -110, -200, -900, -1500, -3000 (10 kHz–100 MHz series; note model-specific start frequencies per datasheet).
Included: Amplifier, mains cable, user manual, and interface kit where applicable.
Options/Accessories: RF directional couplers & power meters, BCI clamps, CDNs, TEM/stripline fixtures, control/monitoring packages.
Warranty & Support: Provided by Absolute EMC with commissioning assistance and application support.