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While Synchronous Optical Networks (SONET) have been widely adopted for use in long-haul applications, Ethernet is preferred in edge routers and access points due to its lower cost. Ethernet is a packet-based network architecture that is asynchronous, while SONET networks are synchronous. Hence, the two networks cannot communicate seamlessly...

With the current concentration of RF and microwave activity it is becoming increasingly important to eliminate unwanted signals so that the signal can come through loud and clear. Given the importance of providing users with filters to enable them to offer high performance equipment, Reactel Inc. has developed a...

Communication systems, test equipment and avionics are among the systems that often need to interconnect various RF modules with high performance coaxial cables. Semi-rigid cables have long been the traditional way to achieve the necessary VSWR performance at RF and microwave frequencies when delay lines or signal routing between...

Published November 9, 2007 Harlan has selected one question from his "Ask Harlan" column to be featured in the November issue. Harlan will be monitoring the responses and will ultimately choose the best answer to the question. All of the responses to the featured question will be posted on...

EADS Defence & Security (DS) has awarded its 2007 ARGUS science prizes to five students achieving outstanding research results in communications and high frequency techniques. The award ceremony took place during the ‘Professor's Day’ at EADS DS's Defence Electronics’ facility in Ulm, Germany, which annually provides a platform for...

Triggered by strong market interest and supporting the growth of mobile broadband worldwide, Ericsson has announced the launch of infrastructure and device platforms for WCDMA/HSPA in the 2.6 GHz frequency band. The launch of HSPA products in the 2.6 GHz frequency band provides an immediate and secure choice for...

Indra , a leader in information technologies and defense systems, has acquired the Australian Interscan Navigation Systems (INS), whose main activity is the design and integration of ground-based infrastructure support equipment for the aerospace transportation sector (radio navigational aids). The company's turnover amounted to €6.4 M in the last...

Accton Wireless Broadband (AWB), headquartered in Taiwan, and the leading wireless broadband equipment ODM , has extended its relationship with terminal chipset provider Beceem Communications . Under the expanded relationship the parties will bring complete Mobile WiMAX Wave 2 terminal solutions to mobile WiMAX operators and Beceem’s infrastructure OEM...

With the Microwave Journal November supplement “WiMAX and Emerging Technologies” hitting the streets and the WiMAX World and European Microwave Week (EuMW) conferences still fresh in the minds of those who attended, now seems like a great time to consider the impact these utopian “wireless everywhere” systems will have...

In the 28 years that I have been both a user and designer of solid-state switches, I have witnessed some major technological advances as RF switches have developed from discrete PIN diodes and evolved through recent developments such as HMIC, GaAs MMICs and RF CMOS. Significantly, too, new technologies...