RF transceivers for small 4G base-stations
8 July 2009
Telecoms, Datacoms, Wireless, IoT
Analog Devices is adding to its RF portfolio with the announcement of new integrated RF-to-digital baseband transceivers. The AD9356 and AD9357 integrated transceivers target low-cost base-station designs and deployments for 4G technology, such as WiMAX and LTE (long term evolution).
Using a single transceiver across multiple base-station platforms (picocell and microcell) can greatly simplify the hardware design cycle. The new transceivers’ configurability allows designers to develop and maintain configurable software to support multiple platforms (ie, operators, transmit power levels, frequency bands, channel bandwidth).
The transceivers integrate 12-bit ADCs, DACs, complete RF-receive and RF-transmit signal chains, and on-chip frequency synthesisers. Embedded realtime control and calibration loops significantly reduce factory calibration and test times. The new transceivers combine to support beam forming applications and include two complete receivers, as well as two complete transmitters for the support of MIMO (multiple-input and multiple-output) deployments.
The transmitter’s signal-to-noise ratio provides support for picocells and microcells from +13 dBm up to +36 dBm output power at the antenna port, while meeting the demanding requirements for 4G base stations. Designers can optimise receiver performance by configuring the transceivers to use a flexible, on-chip AGC (automatic gain control) algorithm. The transceivers include hooks for using incumbent baseband-controlled AGC.
The AD9356 and AD9357 support the 2,3–2,7 GHz and 3,3–3,8 GHz ranges, respectively, covering existing WiMAX bands and channel bandwidths of 3,5; 4,375; 5; 7; 8,75 and 10 MHz. An excellent noise figure of 3 dB and high linearity should enable the devices to achieve good real-world performance as WiMAX/WiBro and LTE network traffic increases.
ADI’s proprietary ‘smart partitioning’ architecture supports autonomous AGC, TPC (transmit power control), and calibration routines that reduce the RF driver development effort. Additionally, the transceivers feature a factory calibration technique, and the highly accurate closed-loop power control delivers 1-point factory calibration of transmit power.
Further reading:
Strategic agreement for eSIM solutions
Avnet Silica
Telecoms, Datacoms, Wireless, IoT
This agreement between Avent Silica and Thales covers the latter’s eSIM solutions that are compliant with GSMA SGP.22 and SGP.32 standards.
Read more...
High precision multi-GNSS antenna
RS South Africa
Telecoms, Datacoms, Wireless, IoT
The Amphenol PCTEL GNSS-L125-DH-NF multi-GNSS antenna is a high-performance antenna designed for reliable global navigation satellite system reception in demanding environments.
Read more...
Designing IoT devices for deterministic LPWAN environments
Editor's Choice Telecoms, Datacoms, Wireless, IoT
Built on Ultra Narrow Band communication technology, the Sigfox network focuses on low power, wide area M2M connectivity rather than maximising data throughput.
Read more...
Robust LoRaWAN for distributed IoT
Telecoms, Datacoms, Wireless, IoT
InHand Networks has unveiled its latest LoRaWAN gateway, the EC312, marking an evolution in industrial-grade connectivity solutions for distributed IoT environments.
Read more...
Miniaturised tuneable harmonic filter bank
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Modern RF and microwave communication systems require compact, high power filtering solutions to suppress unwanted harmonic signals generated by power amplifiers, and to address this challenge, Tri-TeQ has developed a miniaturised broadband tuneable harmonic switched filter bank.
Read more...
Nordic accelerates cellular IoT leadership
RF Design
Telecoms, Datacoms, Wireless, IoT
The company unveiled its next-generation portfolio featuring Cat 1 bis, satellite NTN, and advanced LTE-M/NB-IoT with edge AI, delivering secure and resilient connectivity across billions of IoT devices.
Read more...
Powering the future of industrial automation
IOT Electronics
Telecoms, Datacoms, Wireless, IoT
5G, the 5th generation of wireless broadband technology, enables users to establish reliable connectivity, which in turn enables flexible, autonomous, and efficient processes from production to logistics.
Read more...
Wi-Fi 7 tri-band connectivity module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel has introduced the FCE870Q, a compact short range wireless connectivity module designed for next generation IoT devices that require high throughput, low latency, and reliable operation in dense wireless environments.
Read more...
Compact cellular IoT SiP with GNSS
RF Design
Telecoms, Datacoms, Wireless, IoT
Combining low-power connectivity, edge processing, and positioning capabilities in a compact module, Nordic’s nRF9151 targets applications such as asset tracking, smart metering, industrial monitoring, and smart city infrastructure.
Read more...
Enabling the next generation of high-performance wireless designs
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Espressif Systems has expanded its wireless connectivity portfolio with the introduction of the ESP32-E22, a high-performance connectivity co-processor designed for next generation embedded and IoT systems.
Read more...
printer friendly version