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vor 9 Jahren

3-2013

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HF-Praxis 3/2013

RF & Wireless News

RF & Wireless News Mouser Introduces Enhanced New RF Wireless Technology Site Mouser Electronics, Inc. announced that its newest technology site on Mouser. com covering radio frequency (RF) Wireless Technology has been expanded to feature the leading drop-in RF solutions. The new RF Wireless Technology site‘s enhanced Solutions spotlight helps design engineers choose from the latest integrated solutions and drop-in modules with pre-certified radios that instantly add wireless capabilities to existing applications. The Solutions spotlight features the newest RF modules from industry-leading manufacturers Skyworks, Murata, Panasonic and Texas Instruments, to name a few. These leading RF solutions are organized by both frequency range (sub 1 GHz, 1 – 5 GHz, and over 5 GHz) and protocol (Bluetooth, ZigBee, Wi-Fi, and GPS). The RF Technology site also provides information for designers looking to build an RF design from the components up and features a variety of resources and industry news, including the latest article from Richard Trueman, Panasonic Product Manager, Wireless Devices, titled „Bluetooth Low Energy ... The World‘s Next Great Technology.“ The RF site also showcases a block diagram of a transceiver to speed navigation based on area of component interest. Explore the site at http://www. mouser.com/applications/rf-wirelesstechnology/. With its broad product line and unsurpassed customer service, Mouser caters to design engineers and buyers by delivering What‘s Next in advanced technologies. Mouser offers customers 19 global support locations and stocks the world‘s widest selection of the latest semiconductors and electronic components for the newest design projects. Mouser Electronics‘ website is updated daily and searches more than 10 million products to locate over 3 million orderable part numbers available for easy online purchase. Mouser.com also houses an industry-first interactive catalog, data sheets, supplier-specific reference designs, application notes, technical design information, and engineering tools. ■ Mouser Electronics www.mouser.com Wireless Ultra-Wideband Antenna System Supports Current, Future Wireless Network Technologies CommScope introduces Argus UltraBand, believed to be the world‘s first ultra-wideband antenna system capable of supporting the four major air-interface standards in almost any wireless frequency range. UltraBand enables operators to reduce the number of antennas in their networks, lowering tower leasing costs while increasing speed to market capability. Every iteration of wireless technology typically requires operators to deploy new antenna equipment in their networks. Towers get cluttered with multiple antennas while installation and maintenance become more complicated. UltraBand helps solve this problem by supporting multiple frequency bands and technology standards from one antenna. For example, operators will be able to deploy LTE in 2.6 GHz and 700 MHz while supporting W-CDMA in 2.1 GHz-all from the same antenna. Deploying UltraBand can save operators time and expense during their next technology rollouts, according to Philip Sorrells, vice president, Strategic Marketing- Wireless, CommScope. „The UltraBand antenna is a dynamic, future-ready solution for launching a high performance wireless network with multiple air interface technologies using multiple frequency bands,“ said Sorrells. „The ability to deploy a flexible, scalable and independently optimized A Bluetooth low energy module, developed by Hong Kong ODM LiSeng, uses Nordic Semiconductor‘s µBlue nRF8001 chip antenna technology simplifies the network while providing the operator with the maximum degree of future-ready capacity.“ The UltraBand antenna system is optimized for high performance in capacity-sensitive, data-driven systems. UltraBand utilizes pattern shaping technologies pioneered by Argus, a leader in antenna technology innovation that in 2011 became part of Comm- Scope and its Andrew portfolio of global wireless solutions. The antenna system supports MIMO implementation for advanced capacity solutions. CommScope introduced in January 2012 its first ultra-wideband antenna, capable of supporting four higher frequency bands used in cellular systems. The new Ultra- Band antenna system provides a multi-band solution, adding five lower frequency bands to support a total of nine frequency bands across the wireless spectrum: US700, EU Digital Dividend, US cellular and GSM900 for the lower bands and DCS1800, PCS, AWS, 3G, and WiMax for the higher bands. CommScope believes UltraBand is the first antenna capable of supporting nine frequency bands for all four air-interface standards. CommScope‘s first Ultra- Band model is a 10-port, 2.5 meter version, available now. ■ CommScope www.commscope.com Nordic nRF8001-powered module from LiSeng makes bridging the gap between healthcare products and smartphones simple to help non-RF expert engineers simplify incorporation of Bluetooth v4.0 connectivity into healthcare products such as blood pressure monitors and blood glucose meters. The module is a tested wireless device fully compatible with Bluetooth v4.0. The module is available in three sizes measuring from 15 by 22 mm to 23 by 33 mm and can be easily incorporated into a battery-powered healthcare product (or other portable consumer devices) without in-depth knowledge of RF engineering. The module includes a built-in PCB antenna, crystal, and supporting passives, and can be soldered directly to the target device‘s PCB. The module has a maximum range of 10 meters. 50 hf-praxis 3/2013

RF & Wireless The nRF8001 is a member of Nordic‘s µBlue family and integrates a complete Bluetooth v4.0 low energy Radio, Link Layer, and Host stack for Peripheral (Slave) role operation, and features a simple serial interface supporting external microcontrollers of a designer‘s own choosing given the individual requirements of their application. Communicate seamlessly Incorporating Bluetooth low energy into a device such as a blood pressure monitor (or other portable consumer device) allows it to communicate seamlessly with any Bluetooth v4.0-equipped smartphone, tablet computer or PC now appearing on the market. Compatible devices include Apple‘s iPhone 5 and iPad, and handsets from Motorola, HTC, and NEC. Data from the monitor, for example, could be transmitted to the handset, and from there, via the cellular network, to a remote server in a medical facility. Alternatively, the data could be sent via SMS or e-mail to a remote physician. Because the patient can remain at home while still being monitored the use of such systems promises to address burgeoning healthcare costs by cutting down on hospital visits. ■ Nordic Semiconductor. www.liseng.com.hk www.tinyurl.com/NordicSemi Products GaAs HBT drive amplifier Skyworks introduces a highly efficient, broadband, 13 dB gain, GaAs HBT drive amplifier in a small 2 x 2 millimeter quad flat, no lead package. The SKY67130-396LF draws less than 23 mA at 3.3 V, while achieving +39 dBm OIP3, providing the market with a very compelling, high linearity solution. On-die active bias design ensures consistent performance and unconditional stability. The cost-effective solution is ideally suited for cellular infrastructure applications such as tower mounted amplifiers, remote radio units, repeaters, and base stations, as well as WLAN and ISM band applications at 2.45 and 0.9 GHz, that require a highly efficient driver amplifier or low power PA with moderate noise figure and low VSWR. ■ Skyworks www.skyworksinc.com 5 GHz WiFi Module for 802.11ac Notebook and Mobile Equipment Applications RF Micro Devices, Inc. introduced the highly-integrated RFFM4501E front end module (FEM) for 802.11ac notebook and mobile equipment applications. RFMD‘s newest WiFi FEM meets or exceeds the system requirements for 802.11ac connectivity in the 5.150 GHz - 5.850 GHz frequency band and is optimized to support multiple applications, including notebooks, mobile routers, and low-power customer premises systems. New Ka-band dual-channel rotary joint is designed for use in airborne satcom systems The Engineering Division of Link Microtek has introduced a new dual-channel rotary joint that is specifically aimed at applications in Ka-band satellite communications systems on board aircraft or unmanned aerial vehicles. Designed and manufactured at Link Microtek‘s premises in the centre of Basingstoke, the AM28RJUD device features a WR28 waveguide channel for transmissions in the 26.5 to 40 GHz frequency band at up to 100 W CW, combined with a DC-2 GHz coaxial channel for receive signals. The rotary joint complies with the relevant requirements of the RTCA DO-160 [AD/1] specification, which details environmental conditions and test procedures for airborne equipment - covering parameters such as temperature, pressure, humidity, shock and vibration. To operate at the high frequencies of the Ka band, the device necessarily has small physical dimensions: it measures just 42 mm between waveguide flanges and has an overall length of 120 mm between coaxial connectors. The non-contacting design of the waveguide channel makes for an inherently high power handling capability of 100 W CW, together with a VSWR of The RFFM4501E integrates a +17.5 dBm (80 MHz MCS9) PA at 3.3 V, a low insertion loss/high isolation single pole two throw (SP2T) switch, harmonic filtering, and a low noise amplifier (LNA) with bypass mode, for equipment manufacturers seeking to adjust receive sensitivity. The receive chain provides 12.5 dB of typical gain with only 12 mA of current and an excellent noise figure of 2.5 dB. Separate Rx/Tx 50 Ohm ports simplify matching and provide input and output signals for both the transmit and receive paths. The RFFM4501E is optimized to mate with the 802.11ac chipset of a leading semiconductor company. The ultra-small form factor (3 mm x 3 mm x 1.1 mm) and high level of integration of the RFFM4501E shrink the product footprint, reduce external component count, minimize assembly costs, speed timeto-market, and enable industry-leading product performance. ■ RF Micro Devices, Inc. www.rfmd.com. 1.2:1 and a typical insertion loss of 0.6 dB. The coaxial channel has a VSWR of 1.5:1 and an insertion loss of less than 0.4 dB, while isolation between the two channels is better than 65 dB. Available fabricated in either aluminium or brass as standard, the AM28RJUD can be specified with a variety of different coaxial connectors, including SMA, N-type and TNC. As an option, the device can also be supplied with an integral slip-ring assembly. ■ Link Microtek www.linkmicrotekeng.com hf-praxis 3/2013 51

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