RF Amplifiers

Image Part Number Description / PDF Quantity Rfq
PHA-22H+

PHA-22H+

SMT DUAL MATCHED AMPLIFIER, 50 -

0

MAX3521ETP+T

MAX3521ETP+T

Maxim Integrated

IC RF AMP LNA BROADBAND

0

MD7IC2251GNR1

MD7IC2251GNR1

NXP Semiconductors

IC AMP CDMA 2.11-2.17GHZ TO270

0

MMRF2006NT1

MMRF2006NT1

NXP Semiconductors

IC AMP W-CDMA 1.8-2.17GHZ 24QFN

0

MAX2265EUE

MAX2265EUE

Analog Devices, Inc.

CEL-BAND LINEAR POWER AMPLIFIER

14485

BGA2817,115

BGA2817,115

NXP Semiconductors

IC RF AMP GP 0HZ-2.2GHZ 6TSSOP

26677

BGU7032,115

BGU7032,115

NXP Semiconductors

IC RF AMP GP 40MHZ-1GHZ 6TSSOP

322

AD8354ACPZ-REEL7

AD8354ACPZ-REEL7

Analog Devices, Inc.

IC AMP CEL 1MHZ-2.7GHZ 8LFCSP-VD

515

BGA420E6433

BGA420E6433

IR (Infineon Technologies)

RF/MICROWAVE AMPLIFIER, 1 FUNC

37300

CMPA2935150S

CMPA2935150S

Wolfspeed - a Cree company

150W GAN MMIC PA 50V 2.9-3.5GHZ

0

PTMA080152M-V1-R500

PTMA080152M-V1-R500

Wolfspeed - a Cree company

IC AMP GSM 700MHZ-1GHZ DSO20-63

0

SKY67183-396LF

SKY67183-396LF

Skyworks Solutions, Inc.

BROADBAND LOW-NOISE AMPLIFIER

1692

SKY66181-11

SKY66181-11

Skyworks Solutions, Inc.

IC AMP GP 1.805GHZ-1.88GHZ 28MCM

137

BGA3018,115

BGA3018,115

NXP Semiconductors

IC RF AMP CATV 5MHZ-1GHZ SOT89-3

6015

BGU8H1115

BGU8H1115

NXP Semiconductors

MMIC

30000

MW4IC001MR4

MW4IC001MR4

Freescale Semiconductor, Inc. (NXP Semiconductors)

WIDE BAND MEDIUM POWER AMPLIFIER

90

BGA524N6E6327XTSA1

BGA524N6E6327XTSA1

IR (Infineon Technologies)

IC AMP GPS 1.55-1.615GHZ TSNP6-2

0

A59

A59

Metelics (MACOM Technology Solutions)

AMPLIFIER,CASCADABLE,THIN FILM

25

GALI-4F+

GALI-4F+

SMT GAIN BLOCK, DC - 4000 MHZ, 5

0

PMA-5451+

PMA-5451+

SMT LOW NOISE AMPLIFIER, 50 - 60

0

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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