What is Flatness?

2026-01-22


In RF power amplifier datasheets, you may often see specifications such as ±0.5 dB or ±1 dB.

In RF power amplifier datasheets, you may often see specifications such as ±0.5 dB or ±1 dB.

 

Flatness is a key performance metric showing how consistently an amplifier maintains output power or gain across its frequency range, reflecting the product’s overall design quality and engineering. Lower flatness variation (e.g. ±0.5 dB) means more predictable behavior, especially in EMC, radar, and broadband test applications.

 

The illustration below helps you quickly understand what flatness really means.

Don’t Be Misled by the Datasheet: The Real Truth About Amplifier Lifetime(1)

Why can two “100W” RF amplifiers have completely different lifetimes —one operating reliably for 10 years, while another degrades in just three months?

2026-01-29



Don’t Be Misled by the Datasheet: The Real Truth About Amplifier Lifetime(1)

Why can two “100W” RF amplifiers have completely different lifetimes —one operating reliably for 10 years, while another degrades in just three months?

New Models Added This Week

This week, we have expanded our existing broadband RF amplifier product lines with several new models, further enriching our solutions for RF test, measurement, and system integration applications.

What is Flatness?

In RF power amplifier datasheets, you may often see specifications such as ±0.5 dB or ±1 dB.

400W L-Band Solid State Pulse Power Amplifier—AVPR1100H56

AVPR1100H56 is a 400W solid-state pulsed amplifier with advanced RF LDMOS transistors. It includes built-in control, monitoring, and protection, ideal for high-power pulse or radar applications.

More Power, More Interference?

Is higher power always better for interference? In modern electronic interference systems, this is no longer the case. Advanced detection and localization technologies allow interference signals to be easily detected and characterized. Spurious emissions and phase noise make high-power signals with poor spectral purity easier to identify—and counter.

One Band. More Power. More Options.

Our latest RF GaN amplifiers cover the full power range from 30 W to 120 W, delivering stable, high-performance operation across 2-6 GHz frequency range. Ideal for broadband interference, EMC testing, and other demanding RF applications.