Microwave Engineering Europe - January/February 2008 - (Page 41)

PRODUCTS 41 WiMAX antennas and tower top products electrical tilt delivers true global reach Radio Frequency Systems (RFS) will be showing a series of ‘WiMAX-ready’ tower-top solutions that comprise truly global electrical-tilt WiMAX antennas, to be unveiled at the Mobile World Congress 2008 exhibition in Barcelona. Designated the Optimizer APXVx56516 antenna series these products form part of a broad and growing IEEE 802.16 WiMAX-compliant solution set — a set that includes antennas, ﬁbre-tothe-tower top technologies, RF conditioning, and in-building solutions. Comprising both variable and remote electrical-tilt versions, the dual-polarised WiMAX antenna series is available in two wideband variants — 2.3 to 2.7 GHz (APXV256516-x) and 3.3 to 3.8 GHz (APXV356516-x). As a result, the latest antenna series supports the widest range of sub-bands currently allocated for WiMAX applications across Europe, the Americas and the AsiaPaciﬁc region. In support of emerging WiMAX network capacity enhancement strategies, side-by-side ‘quad-polarised’ versions of the entire Optimizer APXVx56516 series are also planned for launch later in 2008. The WiMAX electricaltilt antennas provide RF performance for which the RFS Optimizer family is renowned — inﬁnite beam tilt adjustment from zero to ten degrees, upper side-lobe suppression of better than 18 dB across the entire tilt range, and null ﬁll of the ﬁrst lower null. Global reach is achieved with just two models, dramatically cutting inventory requirements and costs, and improving deployment efﬁciencies. www.mwee.com/205918292 Miniature zero-bias Schottky diode detector ideal for high-sensitivity wireless networks Res-net Microwave Inc., a subsidiary of Electro Technik Industries, Inc., is introducing a miniature zerobias Schottky diode detector. The Schottky diode is an order of magnitude faster than conventional PN diodes making them ideal for RF and microwave applications. It has a low junction capacitance and excellent sensitivity and bandwidth. Such attributes make the detector ideally suited to navigation systems, wireless networks and devices, security/ alarm systems, radar, and radio controlled transmitters. The diode detector has a frequency range of 0.01 to 18.5 GHz with a frequency response that runs at ± 0.5 dB. Its VSWR is 1.5:1 with a typical sensitivity of 0.5 mV/µW. The maximum output is 100 mW and the video resistance is 5 kOhm. The diode detector can be operated in an ambient temperature range of -55 °C to +100 °C. It is available in a SMA connector conﬁguration. www.mwee.com/205906008 Microwave Engineering ● January/February 2008 ● www.mwee.com 041_MWEE.indd Sec1:41 25/01/08 11:16:36 http://www.serco.com/Europe http://www.mwee.com/205918292 http://www.serco.com/Europe http://www.mwee.com/205906008 http://www.mwee.com

Table of Contents Feed for the Digital Edition of Microwave Engineering Europe - January/February 2008

Microwave Engineering Europe - January/February 2008 Contents News Comment Radio: Raising the Bar for the Radio: Making 802.11n Work Cover Feature: The RF-System-In-Package Trend - Efficient Design with Advanced Design System 2008 Wireless Sensor Networks: The Zigbee PRO Feature Set: More of a Good Thing Very Fast Measurements of Wireless Devices with Small Antennas in Reverberation Chambers WiMAX Update 2008 Bridging the Gap from the CMOS DSP to the Antenna in OFDM Systems Products Calendar

Microwave Engineering Europe - January/February 2008

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