Microwave Engineering Europe - May 2008 - (Page 34)

34 products relays for rF applications offer increased frequency switching The range of Axicom RF relays from Tyco Electronics has been extended to include a shielded 3 GHz relay and a 6 GHz relay to address the market requirements of increased frequency switching of analogue signals and transmission rates of digital signals. New HF3S and HF6 are developments of the well established HF3 relay and have been designed for 50 ohm or 75 ohm impedance applications and a frequency range of 200 MHz up to 6 GHz. High performance and cost effective HF3S and HF6 electromechanical relays benefit from a small package (15- x 7.6- x 10.6-mm) and feature coil voltages of 3, 4.5, 5, 6, 9 12 and 24 Vdc. All HF series relays are SMT pad compatible and suitable for all SMD soldering processes, which enables optimum integration in high-frequency switching circuits. Compared with alternative solutions, such as FETs or pin diodes, electromechanical high-frequency relays possess better high-frequency characteristics with better isolation and lower insertion loss. They permit the Kit enables easy rF modem development for proprietary/standard short range wireless networks Microchip Technology has announced the availability of Integration Associates’ EZLink Development Kit (Microchip part # TDKEZ915) on the www.microchipdirect.com e-commerce Web site. The kit provides wireless customers an option for easy sub-GHz RF modem development. The EZLink radio module contains an onboard PIC18F2520 8-bit flash microcontroller and Integration’s IA4421 EZRadio transceiver. The EZLink development kit provides a complete, readyto-use RF module through EZRadio technology. A singlechip, low-power solution, the IA4421 is a 434, 868 and 915 MHz multi-channel, Frequency-Shift Keying (FSK) transceiver that uses only one external component — a crystal. It is appropriate for low-power, high-performance wireless applications such as toys, consumer electronics, automotive and building security. Additionally, the kit’s two EZLink radio modules are populated with Microchip’s PIC18F2520 8-bit MCUs. Microchip customers may now create proprietary and standard-based shortrange wireless networking products using the unlicensed Industrial, Scientific and Medical (ISM) frequency bands from 415 MHz to 2.4 GHz. Integration’s EZLink Development Kit joins Microchip’s RF product portfolio of 2.4 GHZ, IEEE 802.15.4 Wireless Personal Area Network (WPAN) MRF24J40 transceiver-based solutions, to provide options for wireless engineers’ subGHz networking needs. www.mwee.com/207402065 transmission of DC, AC and high-frequency signals with constant characteristics over the entire temperature range from -55 to +85 degrees Celsius. The metallic contact in the closed condition permits an unrivalled low insertion loss with no signal distortion from non-linearities in the signal path. This allows the interference-free transmission of signals of high-frequency and high power. Both HF3 S and HF6 devices benefit from excellent switching characteristics of 60 W DC/62.5-VA AC load or 50 W RF load. RF power capability is up to 150 W for HF3 S components and 50 W at 2.4 GHz for HF6 relays. Insertion loss is very low at 0.08 dB at 1 GHz for HF3 S devices and 0.2 dB at 5 GHz for HF6 components. www.mwee.com/207402075 Wireless tool suite advanced 3D modelling for LTE network planning ProVision Communications has announced that ProPhecy™ 4G, an advanced network planning and optimising tool suite for LTE, is now being shipped to customers. ProPhecy 4G improves the network quality of service (QoS) and maximises the data throughput per user while substantially reducing capital investment and operating costs (CAPEX and OPEX). With full 3D planning and modelling capability for urban and rural environments, the ProPhecy 4G propagation prediction engine is one of the most advanced and accurate network planning tools currently available. Results are dramatically better than those obtained with traditional network planning methods that have not been optimised for use with non line of sight (NLOS) systems. The ProPhecy 4G toolset includes a site location tool that takes account of economic factors as well as technical performance criteria in order to optimise the number and locations of basestations. It offers GIS data resolutions as high as 1 m, and can also provide in-building coverage predictions. The tools also include spatial diversity information, frequency planning, and support for sectorised and multi-element antennas (MIMO). This multi-dimensional approach allows planners of 4G networks to achieve the right balance between technical and commercial constraints. www.mwee.com/207402108 rFId reader module supports multiple protocols and low power operation Sirit has launched its INfinity 110 (IN110) highfrequency (HF) reader module designed for embedded RFID applications. The compact IN110, which measures 35.0 x 34.0 x 4.0 mm, allows for easy integration into RFID devices such as handheld readers, mobile or stationary printers and point-of-sale terminals. The IN110 leverages Texas Instruments’ TRF7960 chip and provides application developers with a variety of tag choices by supporting numerous protocols. These include ISO 14443A and B, ISO 15693, TI Tag-it , NXP EPC, NXP UID, NXP iCode, NXP MIFARE, Ultralite, and Inside PicoTag. The IN110 meets FCC part 15 and ETSI EN300-330 specifications and features low power consumption with a 3.3-V power requirement, which makes it suitable for lowpower applications. www.mwee.com/207402096 Microwave Engineering Europe ● May 2008 ● www.mwee.com http://www.microchipdirect.com http://www.mwee.com/207402065 http://www.mwee.com/207402075 http://www.mwee.com/207402096 http://www.mwee.com/207402108 http://www.mwee.com

Table of Contents Feed for the Digital Edition of Microwave Engineering Europe - May 2008

Microwave Engineering Europe - May 2008 News Contents Comment Cover Feature: How to Succeed as a GaAs Foundry Wireless Networking: Wireless Coverage Where Everybody WINS Wireless Networking: Achieving Good Coexistence in the 2.4 GHz ISM Band GPS and Satellite: GPS developments: Galileo Moves Forward with Successful Giove-B Satellite Launch — Broadcom Targets AGPS in Mobile Phones and Devices Raising the Bar for the Radio: Making 802.11n Work Reducing Power Consumption in Ultrawideband Chips WiMax Catches Second Test Wave Products Calendar

Microwave Engineering Europe - May 2008

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.