ample-chip ample-chip
RFQ
BOM

RF Front End (LNA + PA)

Image Part Number Description / PDF Quantity Rfq
SKY66119-11

SKY66119-11

Skyworks Solutions, Inc.

500MHZ TRANSMIT/RECEIVE FEM PA/L

1276
SKY85314-11

SKY85314-11

Skyworks Solutions, Inc.

2.4GHZ 64QAM PA+SW+LNA FEM IN 2.

5454
RFX8422S

RFX8422S

Skyworks Solutions, Inc.

IC FRONT END MOD BLE/WLAN 16QFN

0
SKY85712-21

SKY85712-21

Skyworks Solutions, Inc.

5GHZ 802.11AC 21DBM, 5V FEM

8769
SKY66101-11

SKY66101-11

Skyworks Solutions, Inc.

902-928 MHZ HIGH POWER FEM

3185
SKY85331-11

SKY85331-11

Skyworks Solutions, Inc.

2GHZ 5V 11AC FEM W/ RX FILTER

0
SKY85728-11

SKY85728-11

Skyworks Solutions, Inc.

MODULE RF TXRX QFN

2450
SKY66403-11

SKY66403-11

Skyworks Solutions, Inc.

SKY66403-11 CONNECTED HOME ZB-BL

10685
SKY66111-11

SKY66111-11

Skyworks Solutions, Inc.

IC FEM BLE 2.4GHZ 20MCM

13353
SKY85300-21

SKY85300-21

Skyworks Solutions, Inc.

IC FEM 2.4GHZ BT 256 QAM 16QFN

0
SE5007T-R

SE5007T-R

Skyworks Solutions, Inc.

IC FRONT END MOD 5GHZ 16QFN

90023
SE2436L-R

SE2436L-R

Skyworks Solutions, Inc.

HIGH POWER SMART ENERGY/ZIGBEE P

3912
SKY85726-11

SKY85726-11

Skyworks Solutions, Inc.

5GHZ, 3.3V 18DBM 024QAM 11AC FEM

2990
SKY65366-21

SKY65366-21

Skyworks Solutions, Inc.

418MHZ 6X6 FEM W/PA BYPASS

0
SKY85709-11

SKY85709-11

Skyworks Solutions, Inc.

IC FRONT END MOD WLAN 16QFN

46
SKY66421-11

SKY66421-11

Skyworks Solutions, Inc.

860 TO 930MHZ RF FEM

8373
SE2435L-R

SE2435L-R

Skyworks Solutions, Inc.

IC FRONT END 930MHZ ISM 24QFN

96604
SKYA21043

SKYA21043

Skyworks Solutions, Inc.

5.9GHZ 802.11P DSRC & 802.11AX H

215
SE2431L-R

SE2431L-R

Skyworks Solutions, Inc.

IC RF FRONT END MOD 2.4GHZ 24QFN

0
RFX2401C

RFX2401C

Skyworks Solutions, Inc.

IC FRONT END WLAN/ZIGBEE 16QFN

0

RF Front End (LNA + PA)

1. Overview

An RF Front End (LNA + PA) integrates a Low Noise Amplifier (LNA) and Power Amplifier (PA) to manage signal transmission and reception in radio frequency systems. The LNA amplifies weak incoming signals with minimal noise addition, while the PA boosts outgoing signals to achieve desired transmission power. These components are critical in wireless communication systems, RFID readers, and IoT devices, enabling reliable data exchange and long-range connectivity.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Low-Frequency (LF) RFID Front EndOperates at 30 kHz 300 kHz, high sensitivity for short-range detectionAccess control systems, animal tracking
High-Frequency (HF) RFID Front End13.56 MHz operation, supports mid-range communicationSmart posters, ticketing systems
Ultra-High Frequency (UHF) Front End860 960 MHz, extended read range up to 15 metersSupply chain logistics, inventory management
Integrated LNA+PA ModulesSingle-package solution for transceiver systems5G base stations, automotive radar

3. Structure and Components

A typical RF Front End combines:

  • LNA Section: GaAs or SiGe transistors with input matching networks
  • PA Section: Gallium Nitride (GaN) or Laterally Diffused MOSFET (LDMOS) devices
  • Bandpass filters for frequency selectivity
  • Impedance matching circuits (50 standard)
  • Thermal management structures (heat sinks or thermal vias)

4. Key Technical Specifications

ParameterDescriptionTypical Values
Frequency RangeOperating bandwidth of the front endLF: 125 kHz, HF: 13.56 MHz, UHF: 900 MHz
Gain (LNA)Signal amplification level15 30 dB
Noise Figure (LNA)Measure of signal-to-noise degradation0.5 3 dB
Output Power (PA)Transmitted signal strength20 40 dBm
Power Added Efficiency (PAE)Energy conversion efficiency40 70%
Input/Output ImpedanceMatching network characteristic50 standard

5. Application Fields

Main industries:

  • Telecommunications (5G infrastructure, satellite communication)
  • RFID systems (warehouse tracking, contactless payments)
  • Industrial IoT (sensor networks, asset monitoring)
  • Automotive (V2X communication, tire pressure sensors)

Typical devices: RFID readers, smart meters, drones, medical telemetry systems

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Analog DevicesHMC1060LP5EDC-6 GHz LNA+PA module for test equipment
QorvoRFFM6902Sub-1 GHz front end for IoT devices
Nordic SemiconductornRF215402.4 GHz range extender for Bluetooth systems
STMicroelectronicsST25R3911BHF RFID reader with integrated LNA

7. Selection Recommendations

Key considerations:

  • Match frequency range to system requirements
  • Balance gain/noise figure for receiver sensitivity
  • Verify PA output power against regulatory limits
  • Evaluate package size for PCB integration
  • Assess temperature stability (-40 C to +85 C typical)
  • Compare power consumption for battery-operated devices

Industry Trend Analysis

Future directions include:

  • Advanced CMOS integration reducing discrete component needs
  • Adoption of GaN-on-SiC for higher power density
  • AI-driven dynamic impedance matching
  • Miniaturization for wearable and implantable devices
  • Multi-band front ends supporting 5G and Wi-Fi 6E coexistence

Market growth driven by IoT expansion and RFID adoption in smart cities, projected at 12% CAGR (2023-2030).

RFQ BOM Call Skype Email
Top