RF Transceiver Modules and Modems

Part Number	Description / PDF	Quantity
HL7688_1103055 Sierra Wireless	RX TXRX MOD CELLULAR 4G AT&T SMD	0
EM7455_1103582 Sierra Wireless	RF TXRX 4G LTE CAT6 AT&T/VERIZON	100
HL7800-M_1104648 Sierra Wireless	HL7800-M ATT/VZN AND CATM ONLY D	528
BC188 Sierra Wireless	RX TXRX MOD WIFI TRACE ANT SMD	0
HL7648_1103144 Sierra Wireless	RX TXRX MOD CELLULAR 4G AT&T SMD	0
WP8548_1103113 Sierra Wireless	RX TXRX MODULE CELLULAR 3G AT&T	289
1103479 Sierra Wireless	RX TXRX MODULE CELLULAR 2G SMD	240
EM7565_1103520 Sierra Wireless	RX TXRX MOD 4G LTE-A GLOBAL M.2	0
BC127-1103383 Sierra Wireless	RX TXRX MOD BLUETOOTH CHIP SMD	6074
WP7610-G_1104125 Sierra Wireless	RX TXRX MODULE CELL IOT CAST SMD	784
BC127-EXT-HD_1103784 Sierra Wireless	RX TXRX MOD BLUETOOTH CAST SMD	286
EM7455_1104640 Sierra Wireless	RF TXRX CELLULAR 4G LTE	151
XA1210_1104280 Sierra Wireless	XA1210	283
HL7588_1102561 Sierra Wireless	RF TXRX 4G LTE CAT4 AT&T/VERIZON	0
1104528 BX3105 Sierra Wireless	RX TXRX MOD WIFI TRACE ANT SMD	2280
WP7607-1-G_1104193 Sierra Wireless	RX TXRX MODULE CELL CAST SMD IOT	0
MC7455_1102476 Sierra Wireless	RX TXRX MOD CELLULAR CARD EDGE	0
WP7607-G_1104192 Sierra Wireless	RX TXRX MODULE CELL IOT CAST SMD	0
EM7430_1103408 Sierra Wireless	RX TXRX MODULE CELL 4G LTE SMD	0
WP7603-1-G_1104250 Sierra Wireless	AIRPRIME WP SERIES IOT MODULE, A	732

RF Transceiver Modules and Modems

1. Overview

RF (Radio Frequency) and RFID (Radio Frequency Identification) transceiver modules and modems are critical components in wireless communication systems. RF transceivers enable bidirectional data transmission over radio waves, while RFID modules specialize in identifying and tracking objects via electromagnetic coupling. These technologies underpin modern IoT, industrial automation, logistics, and consumer electronics by enabling seamless connectivity and asset management.

2. Main Types and Functional Classification

Type	Functionality	Application Examples
Sub-1GHz RF Modules	Long-range, low-power communication	Smart meters, wireless sensors
2.4GHz RF Modules	High-speed, short-range communication	Bluetooth, Zigbee devices
UHF RFID Modules	Ultra-High Frequency identification	Supply chain tracking, retail inventory
HF RFID Modules	High-Frequency contactless communication	Access control, ticketing systems

3. Structure and Components

A typical RF transceiver module consists of an antenna interface, RF front-end (LNA, PA), frequency synthesizer, baseband processor, and digital interface. RFID modules include a reader antenna, RFID chip, modulation/demodulation circuit, and protocol engine. Both integrate RFICs (Radio Frequency Integrated Circuits) and support standards like IEEE 802.15.4 or EPCglobal Gen2.

4. Key Technical Specifications

Parameter	Description	Importance
Frequency Range	Operational bandwidth (e.g., 868-915MHz)	Determines regulatory compliance and interference resistance
Transmit Power	Output power (e.g., 0-20dBm)	Affects communication range and signal penetration
Receiver Sensitivity	Minimum detectable signal (e.g., -120dBm)	Impacts link reliability in noisy environments
Data Rate	Transmission speed (e.g., 2Mbps)	Dictates real-time data throughput
Protocol Support	Standards compatibility	Ensures interoperability with existing systems

5. Application Fields

Industrial: Wireless sensor networks, factory automation
Consumer: Smart home devices, wearables
Healthcare: Patient monitoring, asset tracking
Logistics: RFID-based inventory management

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Texas Instruments	CC2652R	Multi-protocol 2.4GHz SoC for Zigbee/Thread
Nordic Semiconductor	nRF52840	Bluetooth 5.2 and Thread support
Impinj	R420	UHF RFID reader for retail and supply chain
STMicroelectronics	S2-LP	Sub-1GHz transceiver for IoT sensors

7. Selection Guidelines

Key considerations include: frequency band compliance, required communication range, data rate requirements, power consumption constraints, and protocol compatibility. For example, UHF RFID modules are preferred for long-range asset tracking, while sub-1GHz modules suit low-power, long-distance industrial applications. Environmental factors (e.g., interference sources) and cost-effectiveness should also be evaluated.

8. Industry Trends

Future development focuses on: integration of AI for dynamic spectrum management, adoption of mmWave frequencies for higher bandwidth, miniaturization via System-on-Chip (SoC) designs, and enhanced security protocols for IoT deployments. The convergence of RFID with blockchain for supply chain transparency is also gaining traction.