Industry News

EADS ARGUS 2007 Science Awards Presented

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...
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Ericsson Launches HSPA in 2.6 GHz Band

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...
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Australian Acquisition to Aid Indra’s Expansion

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...
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AWB and Beceem Extend Mobile WiMAX Partnership

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...
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A Simplified Method to Reduce Dimensions of Planar Passive Circuits Using Defected Ground and Defected Microstrip Structures

In this work, a simplified and accurate mathematical method to predict the reduced dimensions of microstrip circuits by using planes with discontinuities such as defected ground structures (DGS) and defected microstrip structures (DMS) is proposed. The...
The use of discontinuities in ground planes or in microstrip lines is currently employed to improve the performance of different passive circuits, such as the size reduction of amplifiers, 1 the enhancement of filter characteristics 2,3 and applications to suppress harmonics in patch antennas. 4 On the other hand,...
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Filtering Capacitors Embedded in LTCC Substrates for RF and Microwave Applications

This article presents a new solution to build filtering capacitors embedded in low temperature co-fired ceramic (LTCC). A new low loss high-k dielectric (K = 80) tape compatible with DuPont low-k tapes has been developed and used in order to demonstrat...
With the continuous trend to reduce the size of electronic modules and increase the integration levels, the integration of passive elements within the interconnection board or substrate becomes more and more a key factor. In addition to size reduction, passive integration leads to assembly cost reduction as well as...
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A Miniaturized GaAs MMIC Bandpass Filter for the 5 GHz Band

A novel, miniaturized, GaAs-based bandpass filter for the 5 GHz WLAN band, using coupled lines end-shorted at their opposite sides and lumped capacitors, is proposed. The new filter has a compact size, as small as a few electrical degrees, and shows a ...
In modern wireless communication systems, miniaturized MMIC microwave bandpass filters are required to reduce the cost and decrease the RF system design time, especially for a single RF transceiver chip. Therefore, many studies on reducing the large size of conventional bandpass filters have been made. The lumped element approach,...
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A CPW-fed Rhombic Antenna with Band-reject Characteristics for UWB Applications

In this design, a novel rhombic CPW-feed antenna is presented to achieve broadband operation. The antenna has dimensions of 28.5 x 17.0 x 0.8 mm and has good radiation characteristics. The proposed antenna uses a coplanar waveguide feed line with a rho...
Recently, there has been much research on broadband and multi-band antennas for various wireless communication systems. The ultra-wideband (UWB) regulation released by the Federal Communications Commission (FCC) in 2002, “UWB Technology,” holds great promise for a vast array of new applications that have the potential to provide significant benefits...
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