RF Amplifiers

Image Part Number Description / PDF Quantity Rfq
F2480NBGI

F2480NBGI

Renesas Electronics America

IC RF AMP 400MHZ-3GHZ 32VFQFPN

14

SMRA66

SMRA66

Metelics (MACOM Technology Solutions)

AMPLIFIER,SURFACE MOUNT,FET

0

SKY67189-396LF

SKY67189-396LF

Skyworks Solutions, Inc.

BROADBAND LOW-NOISE AMPLIFIER

1026745000

HMC396-SX

HMC396-SX

Analog Devices, Inc.

IC RF AMP GP 0HZ-8GHZ DIE

0

A45

A45

Metelics (MACOM Technology Solutions)

AMPLIFIER,TO-8

10

RMPA1965

RMPA1965

NARROW BAND HIGH POWER AMPLIFIER

13330

A2I35H060GNR1

A2I35H060GNR1

NXP Semiconductors

AIRFAST RF LDMOS WIDEBAND INTEGR

0

PGA-106R-75+

PGA-106R-75+

SMT CATV AMPLIFIER, 5 - 250 MHZ,

0

HMC441LP3ETR

HMC441LP3ETR

Analog Devices, Inc.

IC AMP GP 6.5GHZ-13.5GHZ 16SMT

536

SST12LP14C-QVCE

SST12LP14C-QVCE

Roving Networks / Microchip Technology

IC AMP 802.11B/G 2.4GHZ 16VQFN

103

MAX2373ETC+T

MAX2373ETC+T

Maxim Integrated

IC AMP GP 850MHZ-940MHZ 12TQFN

0

A55

A55

Metelics (MACOM Technology Solutions)

AMPLIFIER,CASCADABLE,THIN FILM

25

BGS8L2X

BGS8L2X

NXP Semiconductors

IC RF AMP 728MHZ-960MHZ 6XSON

3305

PSA-545+

PSA-545+

SMT LOW NOISE AMPLIFIER, 50 - 40

0

A18-1

A18-1

Metelics (MACOM Technology Solutions)

AMPLIFIER

25

HMC-ALH376

HMC-ALH376

Analog Devices, Inc.

IC RF AMP GP 35GHZ-45GHZ DIE

50

AN26210A-PB

AN26210A-PB

Panasonic

IC AMP CELLULR 800MHZ 2GHZ 12LGA

5968

MAX2615ETA+T

MAX2615ETA+T

Maxim Integrated

IC RF AMP GP 40MHZ-4GHZ 8DFN

68430000

TRF37C32IRTVT

TRF37C32IRTVT

Texas Instruments

TRF37C32 1700M-3800MHZ DUAL DOWN

19980

MW7IC2040NBR1

MW7IC2040NBR1

Freescale Semiconductor, Inc. (NXP Semiconductors)

NARROW BAND HIGH POWER AMPLIFIER

423

RF Amplifiers

1. Overview

RF/IF amplifiers and RFID amplifiers are critical components in wireless communication systems, designed to boost signal strength while maintaining signal integrity. RF amplifiers operate across radio frequency (RF) and intermediate frequency (IF) bands, enabling signal transmission/reception in devices like base stations, IoT modules, and medical equipment. RFID amplifiers specialize in enhancing signals for radio frequency identification systems, ensuring reliable data exchange between readers and tags. These components are essential for modern technologies such as 5G networks, smart logistics, and contactless payment systems.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Low Noise Amplifier (LNA)High sensitivity, minimal added noiseRF receivers, satellite communication
Power Amplifier (PA)High output power, efficiency optimizationCellular base stations, Wi-Fi routers
IF AmplifierFixed/dynamic gain control at IF bandsTelevision tuners, radar systems
Variable Gain Amplifier (VGA)Adjustable gain for signal conditioningSoftware-defined radios, test equipment
RFID Reader AmplifierImpedance matching for tag interrogationUHF RFID readers, NFC terminals

3. Structure and Components

Typical RF amplifiers consist of: - Dielectric substrate (e.g., FR4, Rogers material) with conductive traces - Transistor elements (GaAs FETs, SiGe BJTs, or GaN HEMTs) - Impedance matching networks (LC circuits or microstrip lines) - Thermal management (heat sinks or thermal vias) - Shielded enclosure for EMI protection Modern designs integrate bias tees, directional couplers, and protection diodes.

4. Key Technical Specifications

ParameterDescriptionImportance
Gain (dB)Signal amplification ratioDetermines signal reach and clarity
Noise Figure (dB)Additional noise introducedImpacts receiver sensitivity
Output Power (dBm)Maximum deliverable powerDictates transmission distance
Frequency Range (GHz)Operational bandwidthSystem compatibility factor
P1dB CompressionLinear-to-saturation thresholdEnsures signal fidelity
IP3 (dBm)Intermodulation distortion resistanceMulti-signal environment performance

5. Application Fields

  • Telecommunications: 5G NR base stations, microwave links
  • Healthcare: MRI machine RF coils, wireless endoscopy
  • Logistics: UHF RFID warehouse automation
  • Automotive: V2X communication modules, tire pressure sensors
  • Consumer Electronics: Bluetooth LE beacons, NFC payment terminals

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsLMX2500Integrated synthesizer with 15dBm output power
Analog DevicesADAR10004-channel mmWave beamformer for 24GHz RFID
STMicroelectronicsSTRF79XHighly integrated NFC/RFID transceiver
Nordic SemiconductornRF215402.4GHz front-end module with +20dB gain
ImpinjR4H001UHF Gen2 RFID reader IC with on-chip amplifier

7. Selection Guidelines

Key considerations include: - Frequency alignment with system requirements - Gain flatness across operational bandwidth - Thermal dissipation capabilities - Package type (QFN, BGA, or connectorized) - Environmental compliance (temperature, humidity) - Cost vs. performance trade-offs

8. Industry Trends

Emerging trends include: - Transition to GaN technology for higher power density - Silicon integration for mmWave applications - AI-driven dynamic impedance matching - Energy-efficient Class-J and Doherty architectures - Convergence with photonic ICs for 6G systems

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