RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS131204

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

RF MICRO DEVICES

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RFHA3942

35W GaN Wide-Band Power Amplifier

The RFHA3942 is a 48V, 35W high power discrete amplifier

designed for military communications, electronic warfare, general

purpose broadband amplifier, commercial wireless infrastructure,

and industrial/scientific/medical applications. Using a second

generation advanced high power density gallium nitride (GaN)

semiconductor process with improved linearity, these high-

performance amplifiers achieve high efficiency, excellent linearity,

and flat gain and power over a broad frequency range in a single

amplifier design. The RFHA3942 is an unmatched GaN transistor,

packaged in a flanged ceramic package. This package provides

excellent thermal stability through the use of advanced heat sink

and power dissipation technologies. Ease of integration is

accomplished by incorporating simple, optimized matching

networks external to the package that provide wideband gain and

power performance in a single amplifier.

Functional Block Diagram

Ordering Information

RFHA3942S2

Sample bag with 2 pieces

RFHA3942SB

Bag with 5 pieces

RFHA3942SQ

Bag with 25 pieces

RFHA3942SR

Short reel with 50 pieces

RFHA3942TR13

13” Reel with 400 pieces

RFHA3942PCBA-411

Fully assembled evaluation board optimized for

2.14GHz; 48V

Package: Flanged Ceramic, 2 pin,

RF360-2

Features

■

Broadband Operation



Tunable from DC to 4GHz



Instantaneous: 800MHz to

2500MHz

■

Advanced GaN HEMT Technology

■

Peak Modulated Power > 30W

■

Advanced Heat-Sink Technology

■

48V Typical Modulated

Performance





Gain 16.3dB



Drain Efficiency 32.6%



ACP-40dBc

■

48V Typical CW Performance





Gain 15.3dB



Drain Efficiency 58%

■

-40°C to 85°C Operating

Temperature

Applications

■

Military Communications

■

General Purpose Broadband

Amplifiers

■

Electronic Warfare

■

Public Mobile Radios

■

Commercial Wireless Infrastructure

■

Cellular and WiMAX Infrastructure

■

Industrial, Scientific, and Medical

RFHA3942

RFHA3942